Wingspan: 81 in [2057mm]

Wing Area: 914 sq in [58.9dm2]

Weight: 17-20 lb [7710-9070g]
Wing Loading: 43-50 oz/sq ft
[131-153g/dm2]
Length: 66 in [1680mm]
Radio: 6-Channel minimum w/8 servos (8- or 9-channel
w/9 servos required for optional retracts)
Engines (2): .46-.51 cu in [7.5-8.5 cc] 2-stroke or
.70-.80 cu in [11.5-13 cc] 4-stroke

assumed nor accepted for any damage resulting from Hobby Services
WARRANTY.....Top Fite ®
Model the use by the user of the final user-assembled product. 3002 N. Apollo Dr. Suite 1
Manufacturing Co. guarantees this kit to be free from By the act of using the user-assembled product, the user Champaign IL 61822
defects in both material and workmanship at the date of accepts all resulting liability. USA
purchase. This warranty does not cover any component
parts damaged by use or modification. In no case shall Top If the buyer is not prepared to accept the liability
Flites’ liability exceed the original cost of the purchased kit. associated with the use of this product, the buyer is Include a letter stating your name, return shipping
Further, Top Flite reserves the right to change or modify advised to return this kit immediately in new and unused address, as much contact information as possible
this warranty without notice. condition to the place of purchase. (daytime telephone number, fax number, e-mail address),
a detailed description of the problem and a photocopy of
In that Top Flite has no control over the final assembly or To make a warranty claim send the defective part or item the purchase receipt. Upon receipt of the package the
material used for final assembly, no liability shall be to Hobby Services at the following address: problem will be evaluated as quickly as possible.

READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.

Top Flite Models Champaign, IL Telephone (217) 398-8970, Ext. 5 airsupport@top-flite.com

Entire Contents © Copyright 2006 TOPZ0910 for TOPA0910 V1.0
 TABLE OF CONTENTS Balance the Model (C.G.) . . . . . . . . . . . . . 28 AMA
Balance the Model Laterally . . . . . . . . . . . 28
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 2 Adjusting the Retractable Landing Gear. . . 29 In addition to joining a radio control club, we strongly
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . 3 PREFLIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 recommend you join the AMA (Academy of Model
DECISIONS YOU MUST MAKE . . . . . . . . . . . . . 3 Identify Your Model . . . . . . . . . . . . . . . . . . 29 Aeronautics). The AMA is the governing body of
Radio Equipment . . . . . . . . . . . . . . . . . . . . 3 Charge the Batteries . . . . . . . . . . . . . . . . . 29 model aviation and membership is required to fly at
Engine Recommendations . . . . . . . . . . . . . 4 Balance Propellers . . . . . . . . . . . . . . . . . . 29 AMA clubs. Though joining the AMA provides many
Optional Retractable Landing Gear . . . . . . . 4 Ground Check. . . . . . . . . . . . . . . . . . . . . . 29 benefits, one of the primary reasons to join is liability
ADDITIONAL ITEMS REQUIRED. . . . . . . . . . . . 4 Range Check . . . . . . . . . . . . . . . . . . . . . . 30 protection. Coverage is not limited to flying at
Adhesives and Building Supplies. . . . . . . . . 4 ENGINE RUN IN INSTRUCTIONS . . . . . . . . . . 30 contests or on the club field. It even applies to flying
Optional Supplies and Tools . . . . . . . . . . . . 4 ENGINE SAFETY PRECAUTIONS . . . . . . . . . . 30 at public demonstrations and air shows. Failure to
IMPORTANT BUILDING NOTES . . . . . . . . . . . . 4 AMA SAFETY CODE . . . . . . . . . . . . . . . . . . . . 31 comply with the Safety Code (excerpts printed in the
ORDERING REPLACEMENT PARTS. . . . . . . . . 5 IMAA SAFETY CODE . . . . . . . . . . . . . . . . . . . 31 back of the manual) may endanger insurance
KIT CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . 6 CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 33 coverage. Additionally, training programs and
PREPARATIONS . . . . . . . . . . . . . . . . . . . . . . . . 7 FLYING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 instructors are available at AMA club sites to help
ASSEMBLE THE FUSELAGE STAND . . . . . . . . 7 Takeoff . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 you get started the right way. There are over 2,500
ASSEMBLE THE WING . . . . . . . . . . . . . . . . . . . 7 Flight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 AMA chartered clubs across the country. Contact the
Install the Ailerons and Flaps . . . . . . . . . . . 7 Landing. . . . . . . . . . . . . . . . . . . . . . . . . . . 34 AMA at the address or toll-free phone number below:
Mount the Plywood Engine Nacelles . . . . . . 9 Engine Out Procedure. . . . . . . . . . . . . . . . 34
Install the Flap, Throttle and Aileron Academy of Model
Servos and Pushrods . . . . . . . . . . . . . . . 9 Aeronautics
Mount the Wing Tip to the Wing. . . . . . . . . 11 5151 East Memorial Drive
Install the Engine and Fuel Tank . . . . . . . . 12 Muncie, IN 47302-9252
Install the Fiberglass Nacelles . . . . . . . . . . 13 Tele. (800) 435-9262
Install the Spinners . . . . . . . . . . . . . . . . . . 14 INTRODUCTION Fax (765) 741-0057
Join the Wings . . . . . . . . . . . . . . . . . . . . . 14 Or via the Internet at: www.modelaircraft.org
ASSEMBLE THE FUSELAGE . . . . . . . . . . . . . 15 Congratulations on the purchase of your Cessna
Install the Elevator and Rudder . . . . . . . . . 15 310! This is one of the finest ARF aircraft we have IMPORTANT!!!
Install the Cockpit . . . . . . . . . . . . . . . . . . . 17 ever produced. It is an airplane that is sure to turn Two of the most important things you can do to
Install the Radio, Elevator heads at the field and get everyone’s attention as preserve the radio controlled aircraft hobby are to
and Rudder Servos. . . . . . . . . . . . . . . . 18 soon as you are airborne. The molded fiberglass avoid flying near full-scale aircraft and avoid flying
INSTALL THE LANDING GEAR . . . . . . . . . . . . 19 fuselage and wing tips have faithfully re-created this near or over groups of people.
Nose Gear . . . . . . . . . . . . . . . . . . . . . . . . 19 classic twin with many fine details and a tremendous
Main Gear. . . . . . . . . . . . . . . . . . . . . . . . . 20 paint finish. Many of the bad tendencies of twin
RETRACTABLE LANDING GEAR . . . . . . . . . . 22 engine aircraft have been engineered out of this
Nose Gear . . . . . . . . . . . . . . . . . . . . . . . . 22 model so this plane is easily within the capability of
Main Gear. . . . . . . . . . . . . . . . . . . . . . . . . 23 the average intermediate pilot. We are sure this
Install the Retract Hardware . . . . . . . . . . . 25 plane will bring you many hours of flying enjoyment!
FINAL ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . 26
Completing the Radio Installation . . . . . . . 26 For the latest technical updates or manual corrections
Connecting the Lighting System . . . . . . . . 26 to the Cessna 310 visit the Top Flite web site at
Apply the Decals . . . . . . . . . . . . . . . . . . . . 27 www.top-flite.com. Open the “Airplanes” link, then
GET THE MODEL READY TO FLY . . . . . . . . . . 27 select the Cessna 310 ARF. If there is new technical
Check the Control Directions . . . . . . . . . . . 27 information or changes to this model a “tech notice”
Set the Control Throws . . . . . . . . . . . . . . . 28 box will appear in the upper left corner of the page.
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IMAA 8. WARNING: The cowl, fuselage, nacelles and tail
The Top Flite Cessna 310 is an excellent sport-scale PROTECT YOUR MODEL, cone included in this kit are made of fiberglass, the
model and is eligible to fly in IMAA events. The IMAA YOURSELF & OTHERS fibers of which may cause eye, skin and respiratory
(International Miniature Aircraft Association) is an tract irritation. Never blow into a part to remove
organization that promotes non-competitive flying of FOLLOW THESE IMPORTANT fiberglass dust, as the dust will blow back into your
giant-scale models. If you plan to attend an IMAA SAFETY PRECAUTIONS eyes. Always wear safety goggles, a particle mask
event, obtain a copy of the IMAA Safety Code by and rubber gloves when grinding, drilling and sanding
contacting the IMAA at the following address or fiberglass parts. Vacuum the parts and the work area
telephone number, or by logging on to their web site. 1. Your Cessna 310 should not be considered a toy, but thoroughly after working with fiberglass parts.
rather a sophisticated, working model that functions very
IMAA much like a full-size airplane. Because of its
205 S. Hilldale Road We, as the kit manufacturer, provide you with a top
performance capabilities, the Cessna 310, if not
Salina, KS 67401 quality, thoroughly tested kit and instructions, but
assembled and operated correctly, could possibly cause
(913) 823-5569 ultimately the quality and flyability of your finished
injury to yourself or spectators and damage to property.
www.fly-imaa.org/imaa/sanction.html. model depend on how you build it; therefore, we
cannot in any way guarantee the performance of
2. You must assemble the model according to the
your completed model, and no representations
instructions. Do not alter or modify the model, as
SCALE COMPETITION are expressed or implied as to the performance or
doing so may result in an unsafe or unflyable model.
safety of your completed model.
In a few cases the instructions may differ slightly from
Though the Top Flite Cessna 310 is an ARF and
the photos. In those instances the written instructions
may not have the same level of detail as an “all-out”
should be considered as correct. Remember: Take your time and follow the
scratch-built competition model, it is a scale model
instructions to end up with a well-built model that
nonetheless and is therefore eligible to compete in
3.You must take time to build straight, true and strong. is straight and true.
the Fun Scale class in AMA competition (we receive
many favorable reports of Top Flite ARFs in scale
4. You must use an R/C radio system that is in first-
competition!). In Fun Scale, the “builder of the DECISIONS YOU MUST MAKE
class condition, and correctly sized engines and
model” rule does not apply. To receive the five points
components (fuel tank, wheels, etc.) throughout the
for scale documentation, the only proof required that This is a partial list of items required to finish the
building process.
a full size aircraft of this type in this paint/markings Cessna 310 that may require planning or decision
scheme did exist is a single sheet such as a kit box making before starting to build. Order numbers are
5. You must correctly install all R/C and other
cover from a plastic model, a photo, or a profile provided in parentheses.
components so that the model operates correctly on
painting, etc. If the photo is in black and white other
the ground and in the air.
written documentation of color must be provided. RADIO EQUIPMENT
Contact the AMA for a rule book with full details.
6. You must check the operation of the model before
every flight to insure that all equipment is operating and Transmitter and Receiver
If you would like photos of full-size Cessna 310s for A minimum of a 6 channel radio is required but
that the model has remained structurally sound. Be sure
scale documentation, or if you would like to study because of the number of servos in this model you
to check clevises or other connectors often and replace
the photos to add more scale details, photo packs may wish to eliminate the use of “Y” connectors. An
them if they show any signs of wear or fatigue.
are available from: 8- or 9- channel radio may be preferable.
Bob’s Aircraft Documentation 7. If you are not an experienced pilot or have not flown
3114 Yukon Ave this type of model before, we recommend that you get Servos
Costa Mesa, CA 92626 the assistance of an experienced pilot in your R/C club (2) 40 oz-in servos for the throttles
Telephone: (714) 979-8058 for your first flights. If you’re not a member of a club, your (1) 40 oz-in servo for the retract (optional)
Fax: (714) 979-7279 local hobby shop has information about clubs in your (6) 54 oz-in servos 2-flaps, 2-ailerons,
www.bobsairdoc.com area whose membership includes experienced pilots. 1-rudder, 1-elevator
-3-
Servo Extensions ADDITIONAL ITEMS REQUIRED IMPORTANT BUILDING NOTES
(3) Y-harness (HCAM2751 for Futaba®)
(4) 6" [150mm] extension (HCAM2701 for Futaba) ADHESIVES & BUILDING SUPPLIES • There are two types of screws used in this kit:
(2) 12" [300mm] extension (HCAM2711 for Futaba)
This is the list of Adhesives and Building Supplies
(4) 24" [610mm] extension (HCAM2721 for Futaba) Sheet metal screws are designated by a number
that are required to finish the Cessna 310. and a length. For example #6 x 3/4" [19mm]
Batteries ❏ 3' [900mm] standard silicone fuel
1000 mAh NiCd battery for the receiver tubing (GPMQ4131) This is a number six screw that is
500 mAh NiCd battery for the lighting system ❏ 1/2 oz. [15g] Thin Pro™ CA (GPMR6001) 3/4" [19mm] long.
❏ 1 oz. [30g] Medium Pro CA+ (GPMR6008) Machine screws are designated by a number, threads
ENGINE RECOMMENDATIONS ❏ Pro 30-minute epoxy (GPMR6047) per inch, and a length. For example 4-40 x 3/4" [19mm]
❏ Pro 6-minute epoxy (GPMR6045)
Engine
❏ Drill bits: 1/16" [1.6mm], 5/64" [2mm], 3/32" This is a number four screw that
The recommended engine size for the Cessna 310 is
[2.4mm], 7/64" [2.8mm], 1/8" [3.2mm], 11/64" is 3/4" [19mm] long with forty
a .46-.50 two-stroke. This airplane was extensively
[4.4mm] threads per inch.
flown on the O.S.® .46AX two stroke engines and
❏ Silver solder w/flux (GPMR8070)
Bisson muffler. Though your instincts might tell you
❏ #1 Hobby knife (HCAR0105) Socket head cap screws are designated by a
that a plane of this size and weight will be
❏ #11 blades (5-pack, HCAR0211) number, threads per inch and a length. For example
underpowered with these engines, this is not true.
❏ Medium T-pins (100, HCAR5150) 4-40 x 3/4" [19mm]
During our test flights we used these engines for
❏ Masking tape (TOPR8018)
taking off from grass and asphalt with no problems.
❏ Threadlocker thread locking cement (GPMR6060) This is a number four screw that
The climb out from take off was impressive. Once the
❏ Denatured alcohol (for epoxy clean up) is 3/4" [19mm] long with forty
plane was at altitude the plane was flown at 1/2 to 3/4
❏ Hot melt glue and glue gun (available at hobby, threads per inch.
throttle. As part of our testing the plane was flown on
craft and hardware outlets)
a single engine from both the right and left nacelle. • When you see the term test fit in the instructions, it
The O.S. .46 was enough power to maintain flying means that you should first position the part on the
OPTIONAL SUPPLIES & TOOLS
altitude, fly a figure eight, and a rectangle approach to assembly without using any glue, and then slightly
the runway. The airplane has the power to fly on one Here is a list of optional tools mentioned in the modify or custom fit the part as necessary for the
engine but not enough to climb out from a missed manual that will help you build the Cessna 310. best fit.
landing approach. The O.S. .46 or .50 SX is the engine
❏ 21st Century® sealing iron (COVR2700)
of choice to keep everything hidden under the nacelle.
❏ 21st Century iron cover (COVR2702) • Whenever the term glue is written you should rely upon
❏ 4 oz. [113g] aerosol CA activator (GPMR634) your experience to decide what type of glue to use.
Muffler
❏ CA applicator tips (HCAR3780) When a specific type of adhesive works best for that
The Bisson Pitts Muffler (BISG4046) fits very well in
❏ Epoxy brushes (6, GPMR8060) step, the instructions will make a recommendation.
the nacelle and is the recommended after market
❏ Mixing sticks (50, GPMR8055)
muffler for the Cessna 310.
❏ Mixing cups (GPMR8056) • Whenever just epoxy is specified you may use
❏ Hobbico Duster™ compressed air (HCAR5500) either 30-minute (or 45-minute) epoxy or 6-minute
OPTIONAL RETRACTABLE ❏ Rotary tool such as Dremel® epoxy. When 30-minute epoxy is specified it is
LANDING GEAR ❏ Rotary tool reinforced cut-off wheel (GPMR8020) highly recommended that you use only 30-minute
❏ Servo horn drill (HCAR0698) (or 45-minute) epoxy, because you will need the
Robart Cessna 310 Retracts (ROBQ1623) ❏ Dead Center™ Engine Mount Hole working time and/or the additional strength.
Robart Standard Air Kit with variable Locator (GPMR8130)
rate valve (ROBQ2302) ❏ AccuThrow™ Deflection Gauge (GPMR2405) • Photos and sketches are placed before the step they
10' [1meter] Pressure tubing (ROBQ2369) ❏ CG Machine™ (GPMR2400) refer to. Frequently you can study photos in following
(2) Air line quick disconnects (ROBQ2395) ❏ Precision Magnetic Prop Balancer (TOPQ5700) steps to get another view of the same parts.
-4-
• The Cessna 310 is factory-covered with Top Flite ORDERING REPLACEMENT PARTS REPLACEMENT PARTS LIST
MonoKote® film. Should repairs ever be required,
MonoKote can be patched with additional MonoKote Replacement parts for the Top Flite Cessna 310 are Description How to purchase
purchased separately. MonoKote is packaged in six- available using the order numbers in the Missing pieces Contact Product Support
foot rolls, but some hobby shops also sell it by the foot. Replacement Parts List that follows. The fastest, Instruction manual Contact Product Support
If only a small piece of MonoKote is needed for a most economical service can be provided by your Full-size plans Not available
minor patch, perhaps a fellow modeler would give you hobby dealer or mail-order company.
some. MonoKote is applied with a model airplane Order # Description
covering iron, but in an emergency a regular iron could TOPA1660 Wing Set
be used. A roll of MonoKote includes full instructions To locate a hobby dealer, visit the Hobbico web site TOPA1661 Fuselage Set
for application. Following are the colors used on this at www.hobbico.com. Choose “Where to Buy” at the TOPA1662 Wing Tip Set
model and order numbers for six foot rolls. bottom of the menu on the left side of the page. TOPA1663 Tail Set
Follow the instructions provided on the page to TOPA1664 Left Engine Pod
White - TOPQ0204 locate a U.S., Canadian or International dealer. TOPA1665 Right Engine Pod
Sky Blue - TOPQ0206 TOPA1666 Landing Gear
Insignia Blue - TOPQ0207 TOPA1667 Decal Set
Parts may also be ordered directly from Hobby TOPA1668 Wing Tubes (2)
Services by calling (217) 398-0007, or via facsimile TOPA1669 Tail Tubes (2)
METRIC CONVERSIONS at (217) 398-7721, but full retail prices and shipping TOPA1670 Windshield/Windows
To convert inches to millimeters, multiply inches by 25.4 and handling charges will apply. Illinois and Nevada TOPA1671 Gear Doors
residents will also be charged sales tax. If ordering TOPA1672 Aluminum Spinner
.4mm = 1/64" via fax, include a Visa® or MasterCard® number and TOPA1673 Tail Cone
.8mm = 1/32" expiration date for payment. TOPA1674 Rudder
1.6mm = 1/16"
2.4mm = 3/32"
3.2mm = 1/8" Mail parts orders and payments by personal check to:
4mm = 5/32"
4.8mm = 3/16"
6.4mm = 1/4" Hobby Services
9.5mm = 3/8" 3002 N Apollo Drive, Suite 1
12.7mm = 1/2" Champaign IL 61822
15.9mm = 5/8"
19mm = 3/4"
25.4mm = 1" Be certain to specify the order number exactly as
50.8mm = 2" listed in the Replacement Parts List. Payment by
76.2mm = 3" credit card or personal check only; no C.O.D.
152.4mm = 6"
304.8mm = 12"
381mm = 15" If additional assistance is required for any reason
457.2mm = 18" contact Product Support at:
533.4mm = 21" (217) 398-8970
609.6mm = 24" productsupport@greatplanes.com
762mm = 30"
914.4mm = 36"

-5-
 KIT CONTENTS

1. Fuselage 14. Pilot

2. Nacelles (L&R) 26 15. Wing Fairing (L&R)
3. Spinners 25 16. Gear Door (L&R)
4. Engine Mounts 24
24
17. Landing Gear Covers
5. Fuel Tanks 13 18. Wheels
14 22
6. Wood Nacelle (Left) 23 19. Landing Gear
15 19
18 20
12 16

17 21
10 11

9 8

5
5
1
6
7

7. Wood Nacelle (Right) 2

20. Servo and Battery Tray
8. Wing Half (Left) 2
21. Wing Joiner Tubes
9. Wing Half (Right) 4
4 22. Stab Tubes
10. Wing Tip (Right) 23. Elevator Joiner Wire
11. Wing Tip (Left) 24. Stabilizer (L&R)
12. Lower Nacelle Covers 25. Rudder Control Wire
3
13. Cockpit Kit 3 26. Rudder

PARTS NOT PHOTOGRAPHED (2) Large Black Control Horn (8) #2 x 3/8" [10mm] Wood Screw (4) Flat Nylon Strap
(1) 2-56 Nylon Ball Link Socket (2) 8-32 x 1" [25mm] SHCS (4) Humped Landing Gear Strap
(2) 2-56 Metal Clevis (4) Nylon Retainer (4) 4-40 x 1/8" [3mm] SHS (3) 4x200mm Nylon Tie Strap
(1) 4-40 Threaded Metal Clevis (2) CA Hinge Strip (8) #2 x 1/2" [13mm] SMS (1) .5 x 1000mm Cable
(2) 4-40 Solder Clevis (5) Faslink (2) .074 x12" Wire [305mm] (2) 8x40mm Nylon Dowel with Pin
(4) Brass Screw Lock Connector (2) 36" Gray outer Pushrod Tube (5) .074 x 6" [152mm] Wire (4) 8x30mm Nylon Dowel
(2) 4-40 Nut (9) Silicone Clevis Keeper (2) 4-40 x 36" [914mm] Threaded Rod (2) 2-56 Brass Connector
(8) 6-32 Blind Nut (8) #4 x 1/2" [13mm] Sheet (32) #6 Flat Washer (8) Pinned Hinge
(2) 8-32 Blind Nut Metal Screw (2) #4 Flat Washer (2) Aluminum Door Mount Brackets
(2) 2-56 Nut (2) 4-40 x 1/4" [6mm] SHCS (20) #2 Flat Washer (8) 2 x 10mm Screws
(3) .080 Nut (32) #2 x 3/8" [10mm] SMS (2) #8 Lock Washer (8) 2mm Nuts
(7) 1/4-20 Blind Nut (16) #6 x 1/2" [13mm] SMS (14) #8 Flat Washer (6) Wheel Collars and Set Screws
(2) Large Nylon Control Horn (4) 8-32 x 1" [25mm] Slotted MS (28) #6 Lock Washer (3) Fiberglass Landing Gear Doors
(6) 1/4-20 Bolts 16 6-32 x 3/4" [19mm] SHCS (4) Crimp Connector (1) 4-40 x 12" [305mm] Fully
(4) 2-56 Nylon Clevis (3) .080 Ball (1) 1/4-20 Thumb Screw Threaded Rod

-6-
 PREPARATIONS ASSEMBLE THE WING
❏ 1. If you have not done so already, remove the Install the Ailerons and Flaps
major parts of the kit from the box and inspect for
damage. If any parts are damaged or missing, Assemble the right wing first so your
contact Product Support at the address or telephone work matches the photos.
number listed in the “Ordering Replacement Parts”
section on page 5.
❏ 2. The top and bottom stand components will fit
❏ 2. Remove the tape and separate the ailerons and snugly together. Fit the bottom with the top cradle
flaps from the wing and the elevators from the stab. (the one with the flat cut) as shown.
Use a covering iron with a covering sock on high heat
to tighten the covering if necessary. Apply pressure
over sheeted areas to thoroughly bond the covering
to the wood.

❏ ❏ 1. Drill a 3/32" [2.4mm] hole, 1/2" deep in the

center of each hinge slot to allow the CA to “wick” in.
Follow-up with a #11 blade to clean out the slots.
Hint: If you have one, use a high-speed rotary tool to
drill the holes.
ASSEMBLE THE FUSELAGE STAND
Your kit includes a stand that can be used during the
assembly process and as a useful tool for transporting
the airplane to the field as well as assembly of the
airplane at the field.

❏ ❏ 2. Use a sharp #11 blade to cut a strip of

covering from the hinge slots in the wing and aileron.

❏ 3. When placed into the cradle upside down the

fuselage is elevated so the tail and the cabin top are off
of your work bench. You can also place the fuselage
❏ 1. The stand consists of four foam cradle upright in the cradle. If you install the fixed landing gear
components and two PVC tubes. There are two and wish to transport the fuselage or work on it on your
different cutouts in the cradle. The curved section fits workbench, you will want to place the other bottom ❏ ❏ 3. Cut three 1" x 1" [25mm x25mm] hinges from
the front of the fuselage while the one that has the cradle component onto the front cradle. This will allow the CA hinge strip. Snip off the corners so they go
flat cut fits the rear half of the fuselage. enough clearance for the nose gear. in easier.
-7-
❏ ❏ 4. Test fit the ailerons to the wing with the
hinges. If the hinges don’t remain centered, stick a pin
through the middle of the hinge to hold it in position. ❏ ❏ 6. Apply six drops of thin CA to the top and
bottom of each hinge. Do not use CA accelerator.
After the CA has fully hardened, test the hinges by
pulling on the aileron.

❏ ❏ 8. Apply epoxy to one end of each hinge and

into each of the four holes in the wing trailing edge in
the flap compartment. Insert the hinge into the hole,
positioning the hinge as shown.

❏ ❏ 7. If you have not removed the flap from the

wing, do so. Locate four nylon pinned hinges. Apply
a drop of oil or work Vaseline into the hinge. This will
❏ ❏ 5. Remove any pins you may have inserted into prevent glue from getting into the hinge in the next ❏ ❏ 9. Apply epoxy to the opposite end of the hinge
the hinges. Adjust the aileron so there is a small gap step. Be careful not to get oil on the portion of the and the hinge holes in the flap. Insert the flap onto the
between the LE of the aileron and the wing. The gap hinge that slides into the wing and flap. If this should hinges. Set the wing aside until the glue has cured.
should be small, just enough to see light through or happen be sure to clean the hinge with alcohol
to slip a piece of paper through. before applying the glue. ❏ 10. Repeat steps 1- 9 for the left wing panel.
-8-
Mount the Plywood Engine Nacelles

❏ ❏ 3. Cut the strings. Begin sliding the right nacelle ❏ ❏ 5. Drill 3/32" [2.4mm] holes through each of the
in place and at the same time feed the string through two pilot holes located at the back of the nacelle. Drill
❏ 1. Remove the top plate and fuel tank from the the holes in each side of the nacelle. Re-tie the through the nacelle and into the hardwood block
plywood engine nacelle. Set the two plywood strings. Apply a drop of thin CA to the knot to prevent located in the wing. Insert and remove a #6 x 1/2"
engine nacelles on your workbench as shown in the it from coming apart. [13mm] screw into each of the holes. Apply a couple
photograph. Looking at the top of the nacelle you drops of thin CA into the holes to harden the threads.
must note the difference in the angle of the firewall Once the glue has cured install the #6 screws and #6
of each nacelle. Each nacelle has 4° of outward flat washers into each of the holes.
thrust built into it. Write the word “left” and “right” on
each nacelle so you can easily identify each one. ❏ 6. Repeat steps 1- 5 for the left wing panel.

Install Flap, Throttle and Aileron

Servos and Pushrods

❏ ❏ 2. The wing has strings running through it for ❏ ❏ 4. Slide the nacelle completely into the wing.
pulling servo leads through the wing. The string is taped Attach the nacelle to the wing with an 8-32 x 1"
at the root rib, the wing tip and inside the aileron servo [25mm] socket head cap screw, a #8 lock washer
compartment. Remove the tape and pull the excess and a #8 flat washer. Apply a couple of drops of ❏ ❏ 1. Install the flap servo into the rear servo opening.
string into the front of the wing where the nacelle will be thread locker onto the bolt before tightening the bolt Insert and remove a servo mounting screw into each of
mounted. Re-tape the end of the string to the rib. to the wing and nacelle. the pre-drilled holes. Apply a couple drops of thin CA
-9-
into the holes to harden the threads. Once the glue has
cured re-install the servo mounting screws. Be sure the
servo lead comes up through the slot alongside of the
servo. When installing the flap servo in the right wing
panel, the servo arm should be pointed towards the
wing tip. When installing the servo in the left wing, the
arm should be pointed towards the wing center.

FASLINK

SERVO 2-56 (.074")

HORN PUSHROD WIRE
❏ ❏ 5. Install a brass screw lock
❏ ❏ 3. Screw a nylon clevis onto a .074 x 6" [152mm] connector, nylon retainer ring and a
threaded wire 20 turns. Slide a nylon clevis retainer 4-40 x 1/4" [6mm] socket head cap
onto the clevis. Install the clevis into the outermost screw onto the servo arm. Then
hole of the control horn. Then slide the silicone center the servo and install the arm
retainer over the clevis. Drill a 5/64" [2mm] hole in the onto the servo.
outer hole of the servo arm. Position the servo arm as
shown and be sure the flap is fully closed. With a fine ❏ ❏ 6. Install a 6" [152mm] servo extension onto the
tip marker, mark the wire where it aligns with the outer throttle and flap servo leads. Secure the extension to
hole of the servo arm. Make a 90 degree bend on the the lead with tape, a piece of shrink tube or some
mark. Cut the wire so the wire is 3/8" [10mm] in length other method to keep them from coming unplugged.
after the bend. Insert the wire into the servo arm and
lock it in place with a nylon Faslink. ❏ ❏ 7. Install a 24" [610mm] servo extension onto
the aileron servo lead. Secure the extension to the
lead with tape, a piece of shrink tube or some other
method to keep them from coming unplugged.

❏ ❏ 2. Center a black control horn in the opening

above the flap, positioning it as shown (the control horn
should be backwards from what would be considered
the normal direction of a control horn.) Drill a 1/16"
[1.6mm] hole through each of the mounting holes in the
control horn and into the plywood plate in the flap. Drill
only through the plywood plate. DO NOT drill through ❏ ❏ 4. Install the throttle servo into the servo opening.
the flap. Insert and remove a #2 x 3/8" [10mm] screw (Note that the servo is mounted on the bottom of the
into each of the holes. Apply a couple drops of thin CA nacelle). Insert and remove a servo mounting screw into
into the holes to harden the threads. Once the glue has each of the pre-drilled holes. Apply a couple drops of thin
cured attach the horn to the flap with four CA into the holes to harden the threads. Once the glue ❏ ❏ 8. Install the aileron servo between the wooden
#2 x 3/8" [10mm] screws. has cured, re-install the servo mounting screws. rails under the aileron servo cover using the
- 10 -
hardware that came with the servo. Drill a 1/16" Mount the Wing Tip to the Wing
[1.6mm] hole through each of the servo mounting
holes and into the servo mounting rails. Insert and
remove a servo mounting screw into each of the
holes. Apply a couple drops of thin CA into the holes
to harden the threads. Once the glue has cured,
re-install the servo mounting screws.

❏ ❏ 9. Center the servo. Then, install a large servo

horn to the servo.

❏ ❏ 10. Tie the string from the servo compartment

to the servo lead. Pull the lead through the wing
exiting at the nacelle. Leave the string attached to the ❏ ❏ 13. Screw a nylon clevis onto a .074 x 6" [152mm]
lead for now. threaded wire 20 turns. Slide a nylon clevis retainer onto
the clevis. Install the clevis into the second hole from the ❏ ❏ 1. Glue two 1/4" x1/4" x 3/4" [6mm x 6mm x
end of the control horn. Then slide the silicone retainer 19mm] balsa triangle blocks onto each side of the
❏ ❏ 11. Install the aileron servo cover to the wing over the clevis. Drill a 5/64" [2mm] hole in the outer hole slot in the wing.
with four #2x 3/8"[10mm] wood screws. of the servo arm. Center the servo and position the
servo arm as shown. Then, center the aileron. With a
fine tip marker, mark the wire where it aligns with the ❏ ❏ 2. Examine both wing tips to determine which is
outer hole of the servo arm. Make a 90 degree bend on the left and the right. When installed on the wing the
the mark. Cut the wire so the wire is 3/8" [10mm] in tip should curve upward towards the top of the wing.
length after the bend. Insert the wire into the servo arm
and lock it in place with a nylon Faslink.

❏ 14. Repeat steps 1- 13 for the left wing panel.

❏ ❏ 12. Look closely under the covering of the aileron

and you will see a plywood mounting plate for the
control horn. Place a nylon clevis on the plate in line
with the servo arm. Mark the location of the mounting
holes onto the aileron. Drill a 1/16" [1.6mm] hole on
the marks, drilling through the plywood plate but not ❏ ❏ 3. Pull the wires for the wing tip lights from
through the top of the aileron. Insert and remove a #2 inside of the wing tip. Tie the end of the wire to the
x3/8" [10mm] screw into each of the holes. Apply a string located on the end of the wing. Pull the wire
couple drops of thin CA into the holes to harden the through the wing exiting at the nacelle. Note: at this
threads. Once the glue has cured, attach the horn to point all of the servo leads and the wire for the light
the aileron with two #2 x 3/8" [10mm] screws. should be at the nacelle.
- 11 -
 the wing, exiting through the hole in the top of the
wing. Untie the leads and then tape all of the leads to
the top of the wing, preventing the leads from falling
back into the wing. If you are installing retracts be
sure to leave the string taped to the root rib.

❏ 6. Repeat steps 1- 5 for the left wing panel.

Install Engine and Fuel Tank

❏ ❏ 4. Test fit the wing tip to the wing. Once you’re ❏ ❏ 2. Position the engine on the engine mount so
satisfied everything fits, apply epoxy into the pocket the distance from the firewall to the thrust washer
in the end of the wing, the plywood tongue on the measures 4-5-8" [118mm]. Mark the location of the
wing tip, the tip of the wing and the root rib of the mounting holes onto the engine mount. Drill and tap
wing tip. Tape the wing tip to the wing. Set it aside the engine mount with a 6-32 tap for each of the four
until the glues has cured. bolts. Mount the engine to the mount with four 6-32 x
3/4" [25mm] socket head cap screws, #6 flat washers
and #6 lock washers.

FUEL TANK
PRESSURE
TAP TO
MUFFLER
SILICONE FUEL
FUEL LINE PIPE

TO NEEDLE
FUEL CLUNK VALVE
❏ ❏ 5. At this point the servo leads as well as the FIREWALL
lead for the wing tip lights should be located at the
nacelle. Untie both of the strings from the servo
leads. If you will be installing retractable landing gear, ❏ ❏ 3. Assemble the fuel tank as shown in the
tape one of the strings to the wing. This will be used sketch. When tightening the center screw be sure not
later to pull the air lines through the wing. Tie all of to over tighten it. You just want it snug enough to pull
the leads to the other string. If you will be installing ❏ ❏ 1. Cut the tabs from the engine mount. Install the rubber stopper tight against the tank.
fixed gear tie two leads to each string. This will make the engine mount to the firewall with four 6-32x 3/4"
it easier to pull the leads through the wing. Pull all of [25mm] socket head cap screws, #6 flat washers and ❏ ❏ 4. Install the tank into the fuselage with the neck
the servo leads and the wing tip light wire through #6 lock washers. of the tank through the firewall.
- 12 -
 A note about the muffler: A wide variety of mufflers
are available. On our O.S .46 we used the Bison
muffler (BISG4046) and cut the pipes to a length of
3/8" [10mm]. This allowed the cowl to slip over the
engine and muffler yet still allows the exhaust to clear
❏ ❏ 7 Install a brass screw lock connector, nylon the inside of the nacelle. Cut the pipes as shown.
retainer ring and a 4-40 x 1/4" [6mm] socket head cap Leave the muffler off the engine for now. This will
screw onto the throttle arm on the engine. Cut the make the installation of the fiberglass nacelle easier.
threaded portion off of a 2-56 x 12" [305mm] pushrod
wire. Slide the wire through the screw lock connector ❏ 9. Repeat steps 1- 8 for the left wing panel.
on the throttle arm, pushing it back towards the throttle
servo. Bend the wire as needed to clear the top of the
fuel tank and reach the screw lock connector. Tighten Install Fiberglass Nacelle
the set screws against the wire pushrod.
❏ ❏ 1. Glue two of the 1/4 x 1-1/8" [6mm x 30mm]
nylon dowels into the leading edge of the wing on
each side of the nacelle with epoxy. The dowels
should extend from the leading edge of the wing
approximately1/2" [13mm].
❏ ❏ 5. From one of the 1/4" x 1/4" x 12" [6mm x 6mm
x 305mm] balsa sticks, cut two sticks to a length of 1"
[25mm]. Insert them into the square openings on each
side of the bottom of the nacelle. Make sure they
extend into the nacelle far enough to support the fuel
tank. Then, glue them in place.

❏ ❏ 6. Install silicone fuel tubing onto the aluminum

tubes from the fuel tank. The line with the fuel clunk
will feed to the fuel inlet at the needle valve and the
other will attach to the pressure tap on the muffler. If
you choose to use some kind of an external fuel
valve, follow the instructions with your particular
brand of fuel valve. You can also install a third line to ❏ ❏ 2. Place the two nacelles side by side. Each
the tank and use it for filling the tank. The method you have outboard thrust angles built into the front of the
use is your choice but make your decision before nacelle. Identify the right and left and mark this on
moving onto the installation of the fuel tank. ❏ ❏ 8. Epoxy the top of the nacelle in place. the inside of the nacelle.
- 13 -
 screw into each of the holes. Apply a few drops of Install the Spinners
thin CA into the holes. After the glue has cured,
screw the belly pan in place.

❏ ❏ 5. Make the necessary cut-outs for the needle

valve, muffler, glow driver, etc.

❏ ❏ Install the spinners to the engine with the

hardware included with the spinners. When mounting
the propellers you will need to use the nut that came
with the spinners rather than the nut that came with
the engine.
❏ ❏ 6. It is very important that you provide an air
❏ ❏ 3. Slide the nacelle over the engine and onto exhaust to allow the engine to be cooled properly.
the locating dowels on the leading edge of the wing. With the engine completely cowled, you must provide
Note: You may have to remove the needle valve approximately 5 sq. in. [.35 dm2] of exhaust area on
and/or the needle valve spring to get the nacelle the bottom of the wing nacelle.
completely over the engine. Secure the nacelle to the Join the Wings
wing with two 1/4-20 x 2" [51mm] nylon bolts on the
bottom of the wing.

❏ ❏ 7. Epoxy one of the two 5/16 x 1-1/2" [8mm x

❏ ❏ 4. Place the nacelle belly pan onto the bottom 40mm] nylon dowels with the steel pin in its center
of the wing, placing it tight against the nacelle. Drill a into the hole in the leading edge of the wing. Insert
1/16" [1.6mm] hole at the location shown, making the pin fully into the hole in the leading edge. ❏ 1. Slide the two aluminum tubes into one of the
sure to drill only through the wood under the pan. wing halves. Slide the other wing onto the tubes.
Install and then remove a #2 x 1" [25mm] sheet metal ❏ 8. Repeat steps 1-7 for the other wing. Push the wings tightly together.
- 14 -
❏ 2. Insert the 1/4-20 thumbscrew into the opening ❏ 5. Glue the fairings to the wing. After the glue has ❏ 2. Slip the rudder control wire into the hole in the
in the right wing panel. Tighten the screw, pulling the cured, remove the wing from the fuselage and top of the fuselage.
wings together. separate the two halves of the wing.

ASSEMBLE THE FUSELAGE

❏ 3. Place the fuselage upside down into the foam
stand. Install the wing onto the fuselage, securing it Install the Elevator and Rudder
with two 1/4-20 nylon wing bolts.

❏ 3. Put a 4-40 nut onto a 4-40 x 36" [914mm] wire

pushrod. Screw the wire pushrod into the nylon swivel
connector approximately 20 turns. Lock the nut
against the connector. From the back of the fuselage,
slide the pushrod wire into the center plastic guide
tube that is pre-installed in the fuselage. Slide the
rudder control wire through the nylon bearing. Place
the rudder control horn onto the rudder control wire.
When installing it over the wire be sure the control
❏ 4. Locate the two fiberglass wing fairings. Place arm is on the left side of the fuselage. Remove the set
them on each wing. Trace the outline of the fairing screw from the control horn and apply a couple of
onto the wing. Using a sharp modeling knife, carefully ❏ 1. Locate the rudder control wire and the rudder drops of thread locker to the threads. Re-insert the
cut the covering from the wing. Be careful to only cut control horn. Note that the wire has a flat spot pre-cut screw into the control horn, tightening the set screw
through the covering, not the surface of the wing. in the end of the wire. against the flat spot on the rudder control wire.
- 15 -
 ❏ 5. Slide the aluminum stabilizer tubes into the ❏ 7. Cut six 1" x 1" [25mm x 25mm] hinges from the
back of the fuselage. Test fit the two stabilizer halves CA hinge strip. Snip off the corners so they go in
onto the tubes. Be sure the stabilizer fits snug to the easier. Install three hinges into each of the elevator
sides of the fuselage. Once you are satisfied with the halves and trial fit the elevators to the stab. Once
fit, remove the stabilizers from the tubes. satisfied with the fit, remove the elevators from the
stab. Apply a small amount of epoxy to the elevator
joiner wires. With the hinges installed in the elevator,
slide the elevators onto the joiner wire and into the
hinge slots, securing the hinges to the stabilizer with
thin CA the same way you did the ailerons.

❏ 8. Cut three 1" x 1" [25mm x 25mm] hinges from the

CA hinge strip. Snip off the corners so they go in easier.

❏ 6. WIth 200-grit sandpaper, roughen the fuselage

❏ 4. Insert the elevator joiner wire into the holes in the where the stabilizers make contact with the fuselage.
sides of the fuselage following the sequence shown. Glue the stabilizer halves to the fuselage with epoxy. ❏ 9. Insert the hinges into the hinge slots of the
Tape the stabilizers in place until the glue has hardened. vertical fin. Keep the hinges centered using a pin.
- 16 -
 Install the Cockpit

The cockpit needs to be installed now, before the

installation of the servos. Do not skip this step thinking
you will install the cockpit after the rest of the plane is
complete. The cockpit can be installed permanently
but if you’re like most modelers you may like the ability
to remove it at a future date. The following instructions
will allow the cockpit to be removed should there ever
be a need to do so.

❏ 2. Located inside of the fuselage, on both sides of

the fuselage, are wood tabs. These are to be used to
help locate the cockpit floor. Position the cockpit just
above these blocks.

❏ 10. Trial fit the rudder onto the hinges and the
vertical fin. Once satisfied with the fit, remove the
rudder. Apply a small amount of epoxy to the rudder
wire. With the hinges installed in the rudder, slide the
rudder in position. Secure the hinges with thin CA the
same way as was done for the elevator.

❏ 1. Locate the components of the cockpit interior. ❏ 3. Install the cockpit into position with a hot melt
Cut the instrument panel decal from the decal sheet glue gun. This glue sets quickly yet is easily removable
and install it to the instrument panel bulkhead. Glue should you ever need to remove the cockpit. If you do
the four seat backs, the instrument panel and the not have a hot melt glue gun you can also use silicone
back of the cockpit in place. Glue pilot in place. though this will take longer to set up.
- 17 -
Install Radio, Elevator & Rudder Servos wire with the servo arm. To get a good alignment with
the servo arm, adjust the pushrod wire by making
❏ 1. Plug the wire from the landing light located in the slight bends as needed to the wire. Install a 4-40
nose of the fuselage into the wiring harness inside solder clevis onto the servo arm. Center the elevator
the fuselage. and then mark the pushrod wire and cut it to length.
Remove the clevis from the servo arm.

❏ 4. Test fit the radio and servo tray to the rails you
glued into the fuselage. Note that the trays fit between
the balsa longerons on the fuselage sides. Once you ❏ 7. Solder the clevis to the wire. Slide a clevis
are satisfied with the fit of the trays, drill a 1/16" [1.6mm] keeper over the clevis. Then, attach the clevis to the
hole through the servo and radio trays, drilling through servo arm.
the servo mounting rails. Secure both trays to the rails
with eight #2 x 3/8" [10mm] sheet metal screws and #2
flat washers.
❏ 2. If you plan to install retractable landing gear you
need to install the air tank now. Glue the tank into the
❏ 5. Install a 4-40 nut, 4-40 threaded clevis and
opening on the right side of the fuselage. Hot melt
silicone clevis keeper onto the threaded end of a 4-40
glue or epoxy mixed with microballoons works well.
x 36" [914mm] wire pushrod. From the back of the
fuselage slide the elevator wire into the pre-installed
plastic pushrod tube for the elevator. Attach the clevis
to the elevator control horn.

❏ 3. Glue the two 3/16" x 3/8" x 9" [4mm x 10mm x

230mm] hardwood servo tray mounting rails inside ❏ 8. Install the rudder servo following the same
the fuselage. The mounting rails must be located on ❏ 6. Using the hardware provided with the servos, procedure used with the elevator servo. For the
the top of the balsa rails already glued to the install the elevator servo into the servo tray as shown. rudder use a double servo arm and install the clevis
fuselage sides and spaced as shown in the photo. Center the elevator servo. Align the elevator pushrod one hole in from the outermost hole as shown.
- 18 -
 INSTALL THE LANDING GEAR
The following instructions are for the installation of the
fixed landing gear. If you will be installing the
retractable landing gear, skip ahead to the instruction
for the retractable landing gear. Should you later decide
to change over to the retractable landing gear, the
mounting holes match so the gear is interchangeable.

Nose Gear

❏ 2. Place the nose gear assembly onto the

mounting rail in the fuselage. You will find that the
nose gear wire touches the fuselage. Mark the spot
where the wire makes contact and make a clearance
hole in the fuselage with a high speed motor tool.

❏ 9. Place 1/4" [6mm] foam under the receiver and

battery. Hold them to the tray with the plastic tie wraps.
Route the receiver antenna through the antenna tube,
securing the antenna at the back of the fuselage.
Note: If you are going to be utilizing the lighting system
on this airplane, you should hold off on installing the
receiver battery until you are instructed to install the
battery for the lights. The same plastic tie wraps used
for the receiver battery will be used to hold the battery
for the lighting system in place.

❏ 10. Position the tail cover in place on the bottom of

the fuselage. Drill a 1/16" [1.6mm] hole in each corner ❏ 3. Place the nose gear onto the mounting rails.
of the cover. Remove the cover and drill a 3/32" Mark the hole locations. Then, drill a 7/64" [2.8mm]
[2.4mm] hole through each of the holes you drilled in ❏ 1. Locate the components for the nose gear hole on each of the marks. Install the nose gear
the cover. Secure the cover to the fuselage with four assembly. Assemble it as shown, making sure to use assembly with four #6 x 1/2" [13mm] machine screws,
#2 x 3/8" [10mm] screws and #2 flat washers. thread locker on all of the bolts. #6 flat washers and #6 lock washers.
- 19 -
 Main Gear
Decision you must make…
Look closely at the bottom of the right wing. Adjacent
to the mounting rails for the landing gear you will find
the wheel opening for the retracts is covered with
Monokote. This covering can be left in place to
minimize drag. If you are interested in a more scale
like appearance, you might wish to permanently
mount the fiberglass gear doors as shown in the
following instructions. If there is a chance that you
❏ 6. Apply thread locker to two of the wheel collar set might install retracts in the future, it is recommended
screws. Insert the screws into two wheel collars. that you leave the covering in place and not install
Slide a wheel collar onto the nose gear wire, the gear doors. If you choose to leave the covering in
❏ 4. Cut the 39" [990mm] pull-pull wire in half. Slip a tightening it against the inner most flat spot on the place skip ahead to step 3.
crimp connector onto one of the wires. Wrap the wire nose gear wire. Install the nose wheel onto the axle
around each of the ball links on the nose gear steering. followed by another wheel collar, tightening it against
Pull the wires tight and squeeze the crimp connector. the remaining flat spot on the wire.
Insert the opposite end of the wire into the plastic tube.
Decision you must make…
Included in the kit is a fiberglass door that fits the
opening in the fuselage for the landing gear. If you
are planning to only fly this airplane with fixed
landing gear, then you might wish to proceed with
step 7. If you think you might be installing retracts at
some time in the future, you should skip step 7 and
move onto the main landing gear. The procedure
outlined in step 7 may be skipped with no effect on
the flying performance of the airplane.

❏ 5. Install a 2-56 nut and clevis onto two threaded

brass couplers. Install the clevis onto the outer holes of
the servo arm. Slide a crimp connector onto the wire. ❏ ❏ 1. Cut the covering from the wheel wells. From
Then, feed the wire through the hole in the side of the the 1/8" x 3/16" x 15-1/2" [3mm x 5mm x 390mm]
brass coupler and back through the crimp connector. ❏ 7. You might wish to close off the nose gear white balsa stick, cut four 3" [76mm] sticks. Glue two
Do this for both of the wires. Pull the wires, making compartment to minimize drag to the aircraft. If so, into each wheel well to support the door when it is
them equal in tension and making sure the rudder is trim the door as shown and glue it permanently in glued in place. Position the sticks 1/8" [3mm] above
centered. Crimp the connectors against the wire. place on the fuselage. the bottom skin of the wing.
- 20 -
❏ ❏ 2. Glue the gear door to the sticks.

❏ ❏ 5. Position two nylon humped landing gear straps ❏ ❏ 7. Place the landing gear plate in position over
❏ ❏ 3. Install the onto the landing gear wire and position the landing the landing gear block. Drill a 1/16" [1.6mm] hole
landing gear into the gear door over the landing gear wire. Mark the location through each of the four holes, drilling through the
landing gear mounting of the holes for the landing gear straps onto the door. hardwood plate. Mount the plate with four #2 x 3/8"
block. Secure the gear On the marks, drill a 5/64" [2mm] hole through the [9.5mm] sheet metal screws.
to the blocks with two door. Secure the door to the landing gear straps with
nylon landing gear four 2mm x 10mm machine screws and 2mm nuts.
straps and four #4 x When positioning the landing gear doors note that the
1/2" [3mm x 13mm] bottom of the door extends beyond the axle.
sheet metal screws.

❏ ❏ 8. Install a set screw into two 3/16" [5mm] wheel

collars. Slide a wheel collar onto the axle followed by
the wheel and another wheel collar. Tighten the set
screw against the flat spots on the axle.

❏ ❏ 4. Position the landing gear over the hardwood ❏ 9. Repeat steps 1–8 for the opposite landing gear.
rails. Be sure the axle is pointed towards the root rib
of the wing. Drill four 7/64" [2.8mm] holes through the
mounting holes and into the hardwood rails. Use four Skip ahead to Final Assembly.
#6 x 1/2" [13mm] sheet metal screws, #6 lock ❏ ❏ 6. Drill a 3/32" [2.4mm] hole in each of the
washers and #6 flat washers to hold the gear in place. corners of the landing gear plate as shown.
- 21 -
 RETRACTABLE LANDING GEAR drilled, pulling the lines into the radio compartment.
Place the nose gear onto the mounting rails. Mark the
The following instructions will take you through the hole locations and then drill a 7/64" [2.8mm] hole on
installation of the retractable landing gear. To maximize each of the marks. Install the nose gear assembly
the scale appearance of the airplane we have included with four #6 x 1/2" [13mm] machine screws, #6 flat
landing gear doors for the nose gear and the main gear. washers and #6 lock washers.
These doors are intended for use with the installation of
the fixed landing gear. Though we are not providing
instructions for their use on retractable landing gear, the
more “scale-minded” pilot might wish to use them and
create their own door hinging and closure mechanisms.

Nose Gear
❏ 5. Install a 2-56 nut and clevis onto two threaded
brass couplers. Install the clevis onto the outer holes
of the servo arm. Slide a crimp connector onto the
wire. Then, feed the wire through the hole in the side
of the brass coupler and back through the crimp
connector. Do this for both of the wires. Pull the
wires, making them equal in tension and making
❏ 3. Install the nose wheel. Use two #8 flat washers on sure the rudder is centered. Crimp the connectors
each side of the wheel to keep it centered in the fork. against the wire.

❏ 1. Drill two 1/8" [3mm] holes in the corner of the

nose gear wheel well for the air lines.

❏ 4. Cut the 39" [990mm] pull-pull wire in half. Slip a

crimp connector onto one of the wires. Wrap the wire
around each of the ball links on the nose gear
steering. Pull the wires tight and squeeze the crimp
❏ 2. Install 18" [460mm] of air line onto each air inlet connector. Insert the opposite end of the wire into the
on the landing gear. Feed each line into the holes you plastic tube.
- 22 -
Main Gear

❏ ❏ 2. Attach the airlines to the air inlets on the

landing gear. Place the landing gear onto the landing
gear rails. (Note: When installing the landing gear,
the torque link assembly will be towards the back of
the wing.) Drill a 7/64" [2.8mm] hole through the
landing gear plate for each of the mounting holes.
Insert and then remove a #6 x 1/2" [13mm] screw
into each hole. Apply a small amount of thin CA onto
the threads to harden them. After the glue has
hardened, mount the landing gear with a #6 x 1/2"
[13mm] screw, #6 flat washer and #6 lock washer. ❏ ❏ 4. Loosen the set screw for the landing gear.
Remove the landing gear leg. Then, slide one of the
landing gear door cover mounting brackets onto the
leg. Reinstall the leg and tighten the set screw.

❏ ❏ 1. Cut two airlines to a length of 24" [610mm].

They need to be fed from the wheel well to the center
of the wing where they will be pulled through the
wing with the string that was left in place during the
servo installation. The lines can be fed through the
openings for the servo leads as shown in the photos.
Once the line is installed between the wheel well and
the wing, tie the string to the two airlines and pull
them through the hole at the root of the wing.

❏ ❏ 5. Retract the landing gear. Then, position the

landing gear door so it is centered in the opening as
shown. Make a line on the door in line with the hole
❏ ❏ 3. Cut away the wood as shown. in the landing gear.
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❏ ❏ 6. Place a piece of masking tape onto the ❏ ❏ 9. Glue two #8 flat washers to the inside of the ❏ ❏ 12. Position the landing gear door cover mounting
mounting flange. Make a line on the masking tape in landing gear door. bracket so that it is approximately 1/16" [1.6mm] above
line with the hole in the landing gear. the torque link assembly. Install the pointed rod into the
hole in the bracket as shown. Be sure the flat portion of
the bracket is aligned with the surface of the wing and
then tighten the threaded rod against the landing gear.
❏ ❏ 10. Locate a #8 x 1" [25mm] phillips head
machine screw. Use a high speed motor tool or
hacksaw and cut the bolt so the threaded length of
the bolt is 5/16" [7.9mm].

❏ ❏ 7. Position the landing gear door in the opening

in the bottom of the wing. When you are satisfied with ❏ ❏ 13. Place the landing gear door in position over
the position of the door, draw a line across the line the wheel well. Install the 8-32 bolt that you cut
already drawn on the landing gear door. through the hole in the gear door, tightening it to the
landing gear. Adjust the door as needed to make
sure it is properly centered in the wheel well. Once
you are satisfied with the position, press firmly on the
❏ ❏ 8. At the intersection of the two lines drill a 1/16" ❏ ❏ 11. Locate the 4-40 x 12" [305mm] threaded landing gear door where the pointed rod is making
[1.6mm] pilot hole. Then drill through the pilot hole rod. File a point onto one end of the rod. Cut the contact with the door. Press firmly enough to make a
with a 11/64" [4.4mm] drill. pointed end from the rod to a length of 1/4" [6mm]. small mark on the inside of the door.
- 24 -
❏ ❏ 14. Remove the gear door from the landing gear.
On the mark you made drill a 1/16" [1.6mm] pilot hole
through the mark. Drill though the pilot hole with a
7/64" drill bit.

❏ ❏ 16. Position the landing gear flange plate over ❏ 2. Install a ball link ball to the control valve with a
the landing gear mounting plate. Drill a 1/16" [1.6mm] .080 nut. Be sure to use a small amount of thread
hole in each corner of the plate. Remove the flange locker when securing the nut. Insert the air control
plate from the wing and drill a 3-32" [2.4mm] hole valve into the plate. Secure the valve to the plate with
through each of the holes you drilled in the flange the nut. Be sure to use a small amount of thread locker
plate. Secure the flange plate to the wing with four #2 when securing the nut.
x 3/8" [10mm] screws and #2 flat washers.

❏ 17. Repeat steps 1-16 for the other landing gear.

Install the Retract Hardware

❏ 3. Install the retract servo into the servo opening

in the tray. Secure it the same way you did the other
servos. Install a nylon ball link onto the 2-56 x 6"
[152mm] threaded rod approximately 15 turns. Then
install the nylon ball link onto the ball. Center the air
❏ ❏ 15. Reinstall the landing gear door onto the control valve arm and center the servo. With a fine tip
landing gear with the 8-32 bolt. Using a 4-40 x 1/4" marker, mark the wire where it aligns with the outer
[13mm] socket head cap screw and a #4 washer, hole of the servo arm. Make a 90 degree bend on the
secure the bottom of the door to the landing gear ❏ 1. Glue the plywood air control valve plate to the mark. Cut the wire so the wire is 3/8" [10mm] in
door cover mounting bracket. Be sure to use thread servo tray and glue the two plywood triangle shaped length after the bend. Insert the wire into the servo
locker on both mounting screws. gussets as shown. arm and lock it in place with a nylon Faslink.
- 25 -
 each wing and one between the flap connections in
each wing. If you intend to leave your wings together,
secure the connectors together with heat shrink
tubing, tape or some other method. If you want the
ability to separate the two wings, secure the
connectors on one wing only.

❏ 3. For the throttle linkage you can use “Y”

connectors the same way done for the ailerons and
flaps. Again, if your radio has the ability to plug each
throttle servo into its own slot, you might want to
consider doing this. Even if you chose to use “Y”
connectors on the ailerons and flaps, you might want
to have the throttles on separate channels and mix
❏ 4. Decide on a location to mount the air fill valve. ❏ 6. You now have to make a couple of decisions them with the radio. This would give you the option of
We mounted ours on the bottom of the fuselage just regarding the wing. The wing is designed in two pieces starting and operating each engine independently of
behind the trailing edge of the wing. This keeps the for easier transportation and storage. Those of you each other during the start up of the engines.
valve somewhat hidden but it is not the most easily that have an appropriately sized vehicle and adequate
accessible location. If you do not mind it being visible storage area may wish to leave the wing assembled in ❏ 4. Install a 6" [152mm] servo extension into the
you may wish to locate in on the fuselage in a place one piece. If you will be leaving the wing together, join slots in your receiver for each of the aileron, flap and
more convenient for filling the air tank. the two air lines that will retract the landing gear with throttle servo leads. This will make plugging the
a “T” fitting. Join the remaining two lines with another connections in the wing to the receiver easier.
“T” fitting. Install a 12" [310mm] length of air line onto
the “T” fitting and an air line quick connector on the ❏ 5. Install the radio switch and charge jack for your
other end. If you will be taking your wings apart, particular brand of radio and plug it into the receiver.
substitute a pair of quick connectors for the “T” fittings. We chose to mount ours on the bottom of the
fuselage. For easier access you might want to
consider mounting it to the side of the fuselage.
FINAL ASSEMBLY
Completing the Radio Installation

❏ 1. Connect the elevator and rudder servos to the

receiver. If you have installed retracts, connect the
retract servo to the receiver too.
Connect the Lighting System
❏ 2. You have a few options when connecting the
aileron, flap and throttle servos. Depending on the The lighting system is a nice scale option but is not
number of channels you have available on your radio required in order to fly the airplane. If you choose not
system, you may wish to have each servo lead plug to use the lights you can skip this section of the
❏ 5. Install the air lines to the air tank, fill valve and into its own receiver slot. If you choose to do this manual. Do not operate the lighting system from
air control valve as shown in the instructions that follow the instructions included with your radio the receiver battery pack! The lighting system will
came with the air control kit. Install the connectors system. The option of using a “Y” connector is require the use of a separate 500 mAh battery pack
that will connect the airlines from the main gear to probably the simplest method. Install a “Y” connector and a switch harness for installation.
the airlines in the fuselage. between the two aileron connections coming out of
- 26 -
 ❏ 5. Install a “Y” harness to the wires from the left and GET THE MODEL READY TO FLY
right wing tip light. When you assemble the airplane
for flight, plug the lights from the wing into the Check the Control Directions
connector on the lighting harness.
❏ 1. Turn on the transmitter and receiver and center
the trims. If necessary, remove the servo arms from
the servos and reposition them so they are centered.
Reinstall the screws that hold on the servo arms.

Apply the Decals ❏ 2. With the transmitter and receiver still on, check
all the control surfaces to see if they are centered. If
necessary, adjust the clevises on the pushrods to
❏ 1. You may wish to balance your airplane before center the control surfaces.
deciding on the final location of the battery for the lighting
system, but most likely the battery placement will not be
crucial for purposes of balancing the airplane. Mount the
battery for the lighting system on the opposite side of the
battery/receiver tray from the battery for the radio
system. Use the plastic tie wraps to hold them in place.

❏ 2. Install a switch and charge jack on the fuselage

the same way done for the receiver.

❏ 3. Be sure the main landing light from the front of

the fuselage is plugged into the pre-installed lighting
harness. Plug the wires from the switch into the 1. Use scissors or a sharp hobby knife to cut the
wiring harness and the battery pack. decals from the sheet.

2. Be certain the model is clean and free from oily

fingerprints and dust. Prepare a dishpan or small
bucket with a mixture of liquid dish soap and warm
water–about one teaspoon of soap per gallon of water.
Submerse the decal in the soap and water and peel off
the paper backing. Note: Even though the decals have
a “sticky-back” and are not the water transfer type,
submersing them in soap and water allows accurate ❏ 3. Make certain that the control surfaces and the
positioning and reduces air bubbles underneath. carburetor respond in the correct direction as shown
in the diagram. If any of the controls respond in the
3. Position the decal on the model where desired. wrong direction, use the servo reversing in the
Holding the decal down, use a paper towel to wipe transmitter to reverse the servos connected to those
❏ 4. Once everything in the fuselage is connected most of the water away. controls. Be certain the control surfaces have
properly, use tie wraps or tape to bundle the excess remained centered. Adjust if necessary.
wire together to help clean up the entire installation. 4. Use a piece of soft balsa or something similar to
When doing this be sure that you leave the male squeegee remaining water from under the decal.
connector for the lights in the wing accessible. Apply the rest of the decals the same way.
- 27 -
Set the Control Throws Balance the Model (C.G.) ❏ 2. With the wing attached to the fuselage, all parts
of the model installed (ready to fly) and an empty fuel
tank, place the model upsidedown on a Great Planes
More than any other factor, the C.G. (balance CG Machine™, or lift it upside down at the balance
point) can have the greatest effect on how a model point you marked.
flies, and may determine whether or not your first
flight will be successful. If you value this model and ❏ 3. If the tail drops, the model is “tail heavy” and the
wish to enjoy it for many flights, DO NOT battery pack and/or receiver must be shifted forward
OVERLOOK THIS IMPORTANT PROCEDURE. A or weight must be added to the nose to balance. If the
model that is not properly balanced will be nose drops, the model is “nose heavy” and the battery
unstable and possibly unflyable. pack and/or receiver must be shifted aft or weight
must be added to the tail to balance. If possible,
At this stage the model should be in ready-to-fly relocate the battery pack or eliminate any additional
Use a Great Planes AccuThrow™ (or a ruler) to condition with all of the systems in place including ballast required. Use Great Planes (GPMQ4485)
accurately measure and set the control throw of each the engines, landing gear and the radio system. “stick on” lead. A good place to add stick-on nose
control surface as indicated in the chart that follows. If weight is in the nose of the fuselage. Begin by placing
your radio does not have dual rates, we recommend incrementally increasing amounts of weight on the
setting the throws at the high rate setting. NOTE: The 3-7/16" [87mm] inside of the fuse until the model balances. Once you
throws are measured at the widest part of the have determined the amount of weight required, it
elevators, rudder and ailerons. can be permanently attached. If required, tail weight
may be added inside the rear of the fuselage.
These are the recommended control surface throws:
❏ 4. IMPORTANT: If you found it necessary to add
High Rate Low Rate any weight, recheck the C.G. after the weight has
ELEVATOR 1" up 3/4" up been installed.
1" down 3/4" down
[25mm] [19mm] ❏ 1. Use a felt-tip pen or 1/8" [3mm]-wide tape to
accurately mark the C.G. on the top of the wing on
RUDDER 1-1/2" right 1" right
both sides of the fuselage. The C.G. is located 3-7/16"
1-1/2" left 1" left
[87mm] back from the leading edge of the wing at the
[38mm] [25mm]
fuselage sides. Balance the Model Laterally
AILERONS: 3/4" up 1/2" up
3/4" down 1/2" down
This is where your model should balance for the first ❏ 1. With the wing level, have an assistant help you
[19mm] [19mm]
flights. Later, you may wish to experiment by shifting lift the model at the tip of the nose and the tail. Do
FLAPS: 1-5/8" [40mm] down this several times.
the C.G. up to 5/16" [8mm] forward or 5/16" [8mm]
IMPORTANT: The Cessna 310 has been extensively back to change the flying characteristics. Moving the
flown and tested to arrive at the throws at which it flies C.G. forward may improve the smoothness and ❏ 2. If one wing always drops when you lift the model,
stability, but the model may then require more speed it means that side is heavy. Balance the airplane by
best. Flying your model at these throws will provide
for takeoff and make it more difficult to slow for adding weight to the other wing tip. An airplane that
you with the greatest chance for successful first flights.
landing. Moving the C.G. aft makes the model more has been laterally balanced will track better in
If, after you have become accustomed to the way the
maneuverable, but could also cause it to become too loops and other maneuvers.
Cessna 310 flies, you would like to change the throws
to suit your taste, that is fine. However, too much difficult to control. In any case, start at the
control throw could make the model difficult to control, recommended balance point and do not at any
so remember, “more is not always better.” time balance the model outside the specified range.

- 28 -
Adjusting the Retractable Landing Gear PREFLIGHT Balance Propellers

After connecting the air lines as instructed in the Identify Your Model
instructions that came with the Air Control kit, fill the
air tank to 100psi and try cycling the landing gear. No matter if you fly at an AMA sanctioned R/C club
The landing gear should cycle up and down freely. If site or if you fly somewhere on your own, you should
they do not, here are some troubleshooting tips: always have your name, address, telephone number
and AMA number on or inside your model. It is
required at all AMA R/C club flying sites and AMA
sanctioned flying events. Fill out the identification tag
❏ 1. The gear does not move up or down: Check to on page 35 and place it on or inside your model.
be sure the control screws on the variable rate valve
are open.
Carefully balance your propellers and spare propellers
before you fly. An unbalanced prop can be the single
most significant cause of vibration that can damage
❏ 2. The landing gear moves up and down but is your model. Not only will engine mounting screws and
not smooth: When mounting the landing gear onto the bolts loosen, possibly with disastrous effect, but
landing gear rails it is important that the rails are vibration may also damage your radio receiver and
exactly parallel to one another. If not, when you tighten Charge the Batteries battery. Vibration can also cause your fuel to foam,
the screws the mounting flange of the gear mechanism which will, in turn, cause your engine to run hot or quit.
can twist slightly. Try loosening the mounting screws a Follow the battery charging instructions that came with
little and try cycling the landing gear again. If the gear your radio control system to charge the batteries. You We use a Top Flite Precision Magnetic Prop Balancer
now works, re-tighten the screws one at a time, cycling should always charge your transmitter and receiver (TOPQ5700) in the workshop and keep a Great
the gear after each screw is tightened. When you find batteries the night before you go flying, and at other Planes Fingertip Prop Balancer (GPMQ5000) in our
out which screw is pulling down too hard on the times as recommended by the radio manufacturer. flight box.
mounting flange, slip a shim under the mounting flange
and then re-tighten the screw.
CAUTION: Unless the instructions that came with
your radio system state differently, the initial
charge on new transmitter and receiver batteries
❏ 3. One of the landing gear goes up while the should be done for 15 hours using the slow-
other goes down: Most likely you have crossed one of charger that came with the radio system. This Ground Check
the air lines. will “condition” the batteries so that the next
charge may be done using the fast-charger of your If the engine is new, follow the engine
choice. If the initial charge is done with a fast- manufacturer’s instructions to break-in the
charger, the batteries may not reach their full engine. After break-in, confirm that the engine idles
capacity and you may be flying with batteries that reliably, transitions smoothly and rapidly to full power
❏ 4. The main landing gear seems to lock in the are only partially charged. and maintains full power–indefinitely. After you run
“gear up” position: The screw that you cut to length the engine on the model, inspect the model closely
to hold the bottom of the landing gear door to the to make sure all screws remained tight, the hinges
strut can extend too far into the thread, causing the are secure, the prop is secure and all pushrods and
gear to bind. Slightly loosen that screw and try connectors are secure.
cycling the gear again. If it now works smoothly grind
a little off the end of the bolt.
- 29 -
Range Check Check the RPM of each engine. They should be ENGINE SAFETY PRECAUTIONS
close but not necessarily exactly the same. Advance
Ground check the operational range of your radio the throttle to full. The engines should transition
Failure to follow these safety precautions may
before the first flight of the day. With the transmitter similarly. Once at full throttle the engines should have
result in severe injury to yourself and others.
antenna collapsed and the receiver and transmitter an RPM very close to one another. Check this with a
on, you should be able to walk at least 100 feet away tachometer. If you do not have a tachometer listen to
from the model and still have control. Have an the sound of the engines. When they are running • Keep all engine fuel in a safe place, away from high
assistant stand by your model and, while you work the close to the same RPM they will sound the same. heat, sparks or flames, as fuel is very flammable.
controls, tell you what the control surfaces are doing. Run the two engines together for the remainder of Do not smoke near the engine or fuel; and
Repeat this test with the engines running at various the tank, running them throughout the engine range. remember that engine exhaust gives off a great
speeds with an assistant holding the model, using deal of deadly carbon monoxide. Therefore do not
hand signals to show you what is happening. If the run the engine in a closed room or garage.
control surfaces do not respond correctly, do not fly! 3. Reinstall the nacelles and run the engines. A fully • Get help from an experienced pilot when learning
Find and correct the problem first. Look for loose servo cowled engine may run at a higher temperature than to operate engines.
connections or broken wires, corroded wires on old an un-cowled engine. Adjust the needle valves so the
engines run as well with the nacelles as they did • Use safety glasses when starting or running engines.
servo connectors, poor solder joints in your battery
pack or a defective cell, or a damaged receiver crystal when the nacelles were off. Check the RPM • Do not run the engine in an area of loose gravel or
from a previous crash. measurements, making sure the engines are sand; the propeller may throw such material in
synchronized with each other. Once you have the your face or eyes.
engines adjusted to their maximum RPM, richen the • Keep your face and body as well as all spectators
engines, allowing the engines to run 150–200 RPM away from the plane of rotation of the propeller as
ENGINE RUN IN INSTRUCTIONS below the maximum achievable RPM. Running the you start and run the engine.
engine slightly rich will help allow the engines to run
Because of the importance for both engines to run slightly cooler and minimize chances of the engines • Keep these items away from the prop: loose
through the entire flight we recommend that you overheating. When making your final engine clothing, shirt sleeves, ties, scarfs, long hair or
follow these engine pre-flight instructions. adjustments it is most important that the engines are loose objects such as pencils or screwdrivers that
synchronized at full throttle. At lower RPM it is not as may fall out of shirt or jacket pockets into the prop.
1. Before attempting to fly the airplane, remove the crucial that they are in synch. If, when your engines • Use a “chicken stick” or electric starter to start the
nacelles and run a full tank of fuel through one are at full throttle one engine has a higher RPM than engine. Do not use your fingers to flip the propeller.
engine. Put a second tank of fuel through the same another, richen the stronger engine until it is in synch Make certain the glow plug clip or connector is
engine, running it at different speeds from idle to full with the weaker engine. secure so that it will not pop off or otherwise get
throttle. It is important that the engine has a solid, into the running propeller.
reliable idle and that it transitions from idle to mid • Make all engine adjustments from behind the
range and then full throttle without any signs of the 4. It has been our experience that the .46 AX engines rotating propeller.
engine quitting. Adjust the low speed needle valve to will run approximately 10 minutes with the supplied
achieve a good idle and low end transition. Then fuel tanks. We recommend that you run the engines • The engine gets hot! Do not touch it during or right
adjust the high speed needle valve. Once you are on the ground at 3/4 to full throttle and time them to after operation. Make sure fuel lines are in good
confident of the engine performance, repeat the see how long you can expect them to run while in the condition so fuel will not leak onto a hot engine,
procedure for the other engine. air. Use of a timer in flight will assure that you don’t causing a fire.
lose track of time. • To stop a glow engine, cut off the fuel supply by
2. Once you are satisfied with both engines, carefully closing off the fuel line or following the engine
start both of them. When starting a twin engine manufacturer’s recommendations. Do not use
airplane be careful not to get anything or any part of hands, fingers or any other body part to try to stop
you in the prop of the running engine! With both the engine. Do not throw anything into the propeller
engines running, let them idle for a few seconds. of a running engine.
- 30 -
 AMA SAFETY CODE (EXCERPTS) 2) I will not fly my model aircraft in the presence of Section 1.0: SAFETY STANDARD
spectators until I become a qualified flier, unless 1.1 Adherence to Code: The purpose of this Safety
Read and abide by the following excerpts from the assisted by an experienced helper. Code is to provide a structure whereby all
Academy of Model Aeronautics Safety Code. For the participants, including spectators, will be aware of
complete Safety Code refer to Model Aviation 3) At all flying sites a straight or curved line(s) must the inherent dangers in the operation of radio
magazine, the AMA web site or the Code that came be established in front of which all flying takes controlled aircraft. This code is meant to serve as a
with your AMA license. place with the other side for spectators. Only minimum guideline to all participants. It is
personnel involved with flying the aircraft are understood that the ultimate responsibility for the
allowed at or in the front of the flight line. Intentional safety of any aircraft lies with the owner(s), pilot(s)
flying behind the flight line is prohibited. and spectator(s) involved in any event. It is the
General responsibility of all participants to exercise caution
1) I will not fly my model aircraft in sanctioned 4) I will operate my model using only radio control when operating, or observing the operation of all
events, air shows, or model flying demonstrations frequencies currently allowed by the Federal radio controlled aircraft. The pilot/owner of an
until it has been proven to be airworthy by having Communications Commission. aircraft will not be dissuaded from taking whatever
been previously, successfully flight tested. steps they deem necessary, in addition to this
5) I will not knowingly operate my model within three code, to insure that their aircraft is safe.
2) I will not fly my model aircraft higher than miles of any pre-existing flying site except in
approximately 400 feet within 3 miles of an airport accordance with the frequency sharing agreement 1.2 The most current AMA Safety Code in effect is to
without notifying the airport operator. I will give listed [in the complete AMA Safety Code]. be observed.
right-of-way and avoid flying in the proximity of full-
scale aircraft. Where necessary, an observer shall 9) Under no circumstances may a pilot or other person Section 3.0: SAFETY REVIEW
be utilized to supervise flying to avoid having touch a powered model in flight; nor should any part 3.4 Flight Testing: All aircraft are to have been flight
models fly in the proximity of full-scale aircraft. of the model other than the landing gear, intentionally tested and flight trimmed with a minimum of six
touch the ground, except while landing. (6) flights before the model is allowed to fly at an
3) Where established, I will abide by the safety rules IMAA Sanctioned event.
for the flying site I use, and I will not willfully and
deliberately fly my models in a careless, reckless 3.5 Proof of Flight: The completing and signing of the
and/or dangerous manner. Declaration section of the Safety Review form (see
Section 3.2) by the pilot (or owner) shall
5) I will not fly my model unless it is identified with my document, as fact, that the noted aircraft has been
name and address or AMA number, on or in the IMAA SAFETY CODE (EXCERPTS) successfully flight tested and proven airworthy
model. Note: This does not apply to models while prior to the IMAA event.
being flown indoors. Since the Cessna 310 qualifies as a “giant scale”
model and is therefore eligible to fly in IMAA Section 4.0: SPOTTER/HELPER
7) I will not operate models with pyrotechnics (any events, we’ve printed excerpts from the IMAA 4.1 Spotter/Helper Definition: An assistant to aid the
device that explodes, burns, or propels a projectile Safety Code which follows. pilot during start-up, and taxing onto the runway.
of any kind). The spotter/helper will assist the pilot in completing
What is Giant Scale? a safe flight.
The concept of large or giant-scale is generally
considered to apply to radio controlled model aircraft 4.2 Each pilot is required to have a spotter/helper at all
with minimum wingspans of 80 inches for monoplanes IMAA sanctioned events. The event Safety
Radio Control and 60 inches for multi-wing aircraft. Quarter-scale or Committee should be prepared to assist those
1) I will have completed a successful radio larger replicas of person-carrying aircraft with proper pilots who do not have a spotter/helper to make
equipment ground check before the first flight of a documentation (minimum 3-view drawing) which do sure that every registered pilot has the opportunity
new or repaired model. not fit the size requirements will also be permitted. to fly at a sanctioned event.
- 31 -
Section 5.0: EMERGENCY ENGINE SHUT OFF a minimum of 45 inch/ounces of torque should be model would likely be under powered at an aircraft
(Kill Switch) considered. This should be considered a minimum weight greater than 36 pounds. With the same
5.1 Magneto spark ignition engines must have a coil- for smaller aircraft and higher torque servos are engine, an aircraft weighing less than 15 pounds
grounding switch on the aircraft to stop the engine. strongly encouraged for larger aircraft. The use of would likely be overpowered.
This will also prevent accidental starting of the one servo for each aileron and one for each
engine. This switch shall be readily available to both stabilizer half is strongly recommended. Use of dual • Servo arms and control horns should be rated heavy-
pilot and spotter/helper. This switch is to be operated servos is also recommended on larger aircraft. duty. Glass filled servo arms and control horns are
manually and without the use of the Radio System. highly recommended.
• On board batteries should be, at a minimum, 1000
5.2 Engines with battery powered ignition systems mAh up to 20 lbs., 1200 mAh to 30 lbs., 1800 mAh • Control surface linkages are listed in order
must have a switch to turn off the power from the to 40 lbs., and 2000 mAh over 40 lbs. flying weight. of preference:
battery pack to disable the engine from firing. This The number and size of servos, size and loads on 1. Cable system (pull pull). A tiller bar is highly
will also prevent accidental starting of the engine. control surfaces, and added features should be recommended along with necessary bracing.
This switch shall be readily available to both pilot considered as an increase to these minimums. 2. Arrow-shaft, fiberglass or aluminum, 1/4" or 5/16"
and spotter/helper. This switch shall be operated Batteries should be able to sustain power to the OD. Bracing every six (6) to ten (10) inches is
manually and without the use of the Radio System. onboard radio components for a minimum of one highly recommended.
hour total flying time before recharging. 3. Tube in tube (Nyrod). Bracing every few inches
5.3 There must also be a means to stop the engine from is highly recommended. Inner tube should be
the transmitter. The most common method is to • Dependable, redundant and fail safe battery systems totally enclosed in outer tube.
completely close the carburetor throat using throttle are recommended. 4. Hardwood dowel, 3/8" OD. Bracing every six
trim. However, other methods are acceptable. This (6) to ten (10) inches is highly recommended.
requirement applies to all glow/gas ignition engines • The use of anti-glitch devices for long leads
regardless of size. is recommended. • Hinges should be rated heavy-duty and manufactured
primarily for use in giant-sized aircraft. Homemade
• There is no maximum engine displacement limit, as it and original design hinges are acceptable if
Section 6.0: RADIO REQUIREMENTS is the position of this body that an under powered determined to be adequate for the intended use.
6.1 All transmitters must be FCC type certified. aircraft presents a greater danger than an over
powered aircraft. However, the selections of engine • Clevis (steel, excluding heavy-duty ball links) and
6.2 FCC Technician or higher-class license required size relative to airframe strength and power loading attachment hardware should be heavy-duty 4-40
for 6 meter band operation only. mandates good discretionary judgment by the thread-and-rod type. 2-56 thread size rod is acceptable
designer and builder. Current AMA maximums for for some applications (e.g. throttle). Clevises must have
ADDITIONAL IMAA GENERAL engine displacement are 6.0 cu. in. for two stroke and lock nuts and sleeve (fuel tubing) or spring keepers.
RECOMMENDATIONS 9.6 cu. in. for four stroke engines. These maximums
The following recommendations are included in the apply only to AMA Sanction competition events such • Propeller tips should be painted or colored in a visible
Safety Code not to police such items, but rather to as 511, 512, 515 and 520. All non competition events and contrasting manner to increase the visibility of the
offer basic suggestions for enhanced safety. It is should be sanctioned as Class C events, in which propeller tip arc.
expected that IMAA members will avail themselves of these engine size maximums do not apply.
technological advances as such become available, to
promote the safety of all aircraft and participants. • Generally, it is recommended that no attempt should
be made to fly a radio controlled model aircraft with
• Servos need to be of a rating capable to handle the a gasoline engine in which the model aircraft weight
loads that the control surfaces impose upon the would exceed 12 pounds per cubic inch of engine
servos. Standard servos are not recommended for displacement (under powered), or be less than 5
control surfaces. Servos should be rated heavy-duty pounds per cubic inch of engine displacement
ounces of torque. For flight critical control functions (overpowered). Example: Using a 3 cu. in. engine, a
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 CHECK LIST ❏ 9. Reinforce holes for wood screws with thin CA FLYING
where appropriate (servo mounting screws,
cowl mounting screws, etc.). The Cessna 310 is a great-flying model that flies
smoothly and predictably. The Cessna 310 does not,
During the last few moments of preparation your
mind may be elsewhere anticipating the excitement
❏ 10. Confirm that all controls operate in the correct however, possess the self-recovery characteristics of
direction and the throws are set up according a primary R/C trainer and should be flown only by
of the first flight. Because of this, you may be more experienced R/C pilots.
to the manual.
likely to overlook certain checks and procedures
that should be performed before the model is flown.
To help avoid this, a check list is provided to make
❏ 11. Make sure there are silicone retainers on all
the clevises and that all servo arms are
sure these important areas are not overlooked.
secured to the servos with the screws included
Many are covered in the instruction manual, so
with your radio.
where appropriate, refer to the manual for complete
instructions. Be sure to check the items off as they
are completed.
❏ 12. Secure connections between servo wires and CAUTION (THIS APPLIES TO ALL R/C
Y-connectors or servo extensions, and the AIRPLANES): If, while flying, you notice an alarming
connection between your battery pack and the or unusual sound such as a low-pitched “buzz,” this
on/off switch with vinyl tape, heat shrink tubing may indicate control surface flutter. Flutter occurs
❏ 1. Fuelproof all areas exposed to fuel or exhaust or special clips suitable for that purpose. when a control surface (such as an aileron or elevator)
residue such as the cowl ring, cowl mounting or a flying surface (such as a wing or stab) rapidly
blocks, wing saddle area, etc. ❏ 13. Make sure any servo extension cords you may vibrates up and down (thus causing the noise). In
have used do not interfere with other systems extreme cases, if not detected immediately, flutter can
❏ 2. Check the C.G. according to the measurements (servo arms, pushrods, etc.). actually cause the control surface to detach or the
provided in the manual. flying surface to fail, thus causing loss of control
❏ 14. Secure the pressure tap (if used) to the muffler followed by an impending crash. The best thing to do
❏ 3. Be certain the battery and receiver are securely with high temp RTV silicone, thread locking when flutter is detected is to slow the model
mounted in the fuse. Simply stuffing them into compound or J.B. Weld. immediately by reducing power, then land as soon as
place with foam rubber is not sufficient. safely possible. Identify which surface fluttered (so the
❏ 15. Make sure the fuel lines are connected and problem may be resolved) by checking all the servo
❏ 4. Extend your receiver antenna and make sure it are not kinked. grommets for deterioration or signs of vibration. Make
has a strain relief inside the fuselage to keep certain all pushrod linkages are secure and free of
tension off the solder joint inside the receiver. ❏ 16. Balance your propeller (and spare propellers). play. If it fluttered once, under similar circumstances it
will probably flutter again unless the problem is fixed.
❏ 5. Balance your model laterally as explained in ❏ 17. Tighten the propeller nut and spinner. Some things which can cause flutter are; Excessive
the instructions. hinge gap; Not mounting control horns solidly; Poor fit
❏ 18. Place your name, address, AMA number and of clevis pin in horn; Side-play of wire pushrods
❏ 6. Use threadlocking compound to secure critical telephone number on or inside your model. caused by large bends; Excessive free play in servo
fasteners such as the set screws that hold the gears; Insecure servo mounting; and one of the most
wheel axles to the struts, screws that hold the ❏ 19. Cycle your receiver battery pack (if necessary) prevalent causes of flutter; Flying an over-powered
carburetor arm (if applicable), screw-lock and make sure it is fully charged. model at excessive speeds.
pushrod connectors, etc.
❏ 20. If you wish to photograph your model, do so
❏ 7. Add a drop of oil to the axles so the wheels will before your first flight.
turn freely.
❏ 21. Range check your radio when you get to the
❏ 8. Make sure all hinges are securely glued in place. flying field.
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Takeoff Take it easy for the first few flights, gradually getting Engine Out Procedure
acquainted with it as you gain confidence. Adjust the
Before you get ready to takeoff, see how the model trims to maintain straight and level flight. After flying One of the primary concerns everybody has when
handles on the ground by doing a few practice runs around for a while, and while still at a safe altitude thinking about flying a twin-engine airplane is “what if
at low speeds on the runway. If necessary, adjust with plenty of fuel, practice slow flight and execute an engine quits?” While this is never a desirable
the nose wheel so the model will roll straight down practice landing approaches utilizing the flaps. You situation, through our previous flying experience with
the runway. If you need to calm your nerves before will find that the plane may balloon slightly when the other twin-engine models and our flight testing and
the maiden flight, shut the engines down and bring flaps are deployed. A small amount of down elevator development with this Cessna 310, we have
the model back into the pits. If you have been running will minimize this and as the plane slows the developed a model that will not suddenly react
the engines for any extended period of time prior to ballooning will stop. You may wish to mix in 1 to 2 unexpectedly if an engine quits and can be controlled
takeoff, top off the fuel, and then check all fasteners degrees of down elevator to the flaps but it is best to well enough to get her safely back to the ground.
and control linkages for peace of mind. work on the amount of mix after the first flight.
Continue to fly around, executing various maneuvers
If you are taking off from an asphalt runway there is no and making mental notes (or having your assistant Thankfully, during straight-and-level flight, if an
need to use flaps for takeoff. If you are taking off from write them down) of what trim or C.G. changes may engine does quit the plane will not do anything
grass you will not need to use flaps as long as you be required to fine tune the model so it flies the way sudden or unexpected. The first thing you must do is
allow the plane to gain adequate ground speed. If you you like. Mind your fuel level, use this first flight to recognize that an engine has quit and then
have a short grass field, if it has particularly thick grass become familiar with your model before landing. determine which engine it is. When an engine does
or rough conditions you might consider applying 1/2" quit the plane will gradually yaw towards the dead
[13mm] to 3/4" [19mm] of flap. When the plane breaks engine and will soon begin to lose altitude. At this
ground be sure to maintain a shallow climb out and Landing point you must decide if you are going to try and land
retract the flaps as the plane begins to pick up speed. on one engine or kill the other engine and attempt a
When you’re ready, remember to takeoff into the wind To initiate a landing approach, lower the throttle while dead-stick landing. We have flown left and right hand
and point the model straight down the runway. As the on the downwind leg and lower the flaps. When the turns on a single engine, turning into both the dead
model gains speed begin adding elevator to achieve a flaps are deployed you will find that the plane may engine as well as the engine that is running. Both
smooth take-off. Gain as much speed as your runway balloon slightly. A small amount of down elevator will situations will require the use of the ailerons and the
and flying site will practically allow before gently minimize this and as the plane slows the ballooning rudder. The key to making the turns on a single
applying up elevator, lifting the model into the air. At will stop. You may wish to mix in 1 to 2 degrees of engine is to steer the plane with the rudder and use
this moment it is likely that you will need to apply more down elevator to the flaps but it is best to work on the the ailerons to keep the wings level. Turning with just
right rudder to counteract engine torque. Be smooth amount of mix after the first flight. Allow the nose of the ailerons can result in a stall or a spin depending
on the elevator stick, allowing the model to establish a the model to pitch downward to gradually bleed off on which engine you turn into.
gentle climb to a safe altitude before turning into the altitude. Continue to lose altitude, but maintain
traffic pattern. airspeed by keeping the nose down as you turn onto
the crosswind leg. Make your final turn toward the Turning towards the running engine will result in a tight
runway (into the wind) keeping the nose down to turn so it is important to try and make a flat, gradual
maintain airspeed and control. Level the attitude turn, making the turn with rudder input and keeping
when the model reaches the runway threshold, the wings level using the ailerons. When turning into
Flight modulating the throttle as necessary to maintain your the running engine the rudder and ailerons will be very
glide path and airspeed. If you are going to responsive so gradually input the controls.
For reassurance and to keep an eye on other traffic, overshoot, smoothly advance the throttle (always
it is a good idea to have an assistant on the flight line ready on the right rudder to counteract torque) and
with you. Tell him to remind you to throttle back once climb out to make another attempt. When you’re When making a turn into the dead engine the turn
the plane gets to a comfortable altitude. While full ready to make your landing flare and the model is a will be much wider. Begin the turn with the rudders
throttle is usually desirable for takeoff, this model foot or so off the deck, smoothly increase up elevator and use the ailerons to make any needed correction
flies more smoothly at reduced speeds. until it gently touches down. to keep the wings level.
- 34 -
In either situation it is important to keep the airspeed certain conditions (such as on high or low rates). As
up. With one engine you will have power enough to fly part of out test flying we set up a condition on the
and maintain altitude for a while before slowly begin to radio that would allow control of the throttles
lose altitude. If you lose too much airspeed you will not independently. If you have this ability with your system
be able to recover the airspeed with just the engine. you might want to consider setting your radio up this
You will have to point the nose down towards the way. Once the plane is at altitude you can reduce the
ground to recover airspeed. Of course if you are close throttle to idle on one side or the other to get a feel for
to the ground you will not have this option so flat large what the engine out performance is like. Of course
turns are the key to success. Once you have using this set up you can easily power the engine
determined which engine is running and which engine back up if you should get in trouble while flying on one
is dead, start planning your landing approach. Once engine. This will improve your skills and increase the
you have guided the plane back to the field and are on chances that you will not surprise yourself by
the final leg, cut the engine power just the same as impulsively attempting a maneuver and suddenly
you would if executing a normal approach. If you use finding that you’ve run out of time, altitude or
the flaps on landing, do not deploy the flaps until you airspeed. A flight plan greatly reduces the chances of
are over the runway. Otherwise they may slow the crashing your model just because of poor planning
plane too much, resulting in a stall. Flaps are not and impulsive moves. Remember to think.
required for a single-engine landing.
Have a ball!
If you do not feel you have the proficiency to fly using But always stay in control and fly in a safe manner.
the rudder and ailerons or are afraid you could
become confused executing the procedures just GOOD LUCK AND GREAT FLYING!
stated, it would be safer to take the second approach
which is simply to cut the throttle thus “killing” the
running engine and treating the model as though it
was a single-engine aircraft in a dead-stick landing.

Whether you land on a single engine or dead-stick you

do not have the power to go around for a second
landing approach once you are on final. On a single
engine approach, if you find you are not aligned
properly with the runway and if you have adequate
altitude, you can most likely fly around for a second
approach. Once you are set up on final you will not have
adequate power to climb out and go around again. To
put it succinctly, if an engine quits, set up for a landing
as quickly as you can. Make smooth, coordinated
control adjustments and don’t panic. After you have had
your first single engine landing, you should find that they
are not as bad as you might have thought.

One final note about flying your model. Have a goal or

flight plan in mind for every flight. This can be learning
a new maneuver(s), improving a maneuver(s) you
already know, or learning how the model behaves in
- 35 -
 Top Flite® Gold Edition™ Beechcraft Staggerwing
TOPA0905

Futaba® Super 9C 9-Channel Computer Radios

FUTK85**–FUTK88** 9C Super FM/PCM

Wingspan: 72.5 in (1840mm)

Wing Area: 1525 sq in (97.6dm²)
Weight: 17-19 lb (7.7-8.6kg)
Wing Loading: 26-28 oz/sq ft (80-90g/dm²)
Fuselage Length: 62.5 in (1590mm)
Engine Required: 2-stroke or 4-stroke 1.60 cu in (25cc) glow engine
Radio Required: 6-channel w/7 servos (minimum) or 8-9 channel w/9
servos (with retracts), (2) 6" (152mm) flap extensions, (2) 12" (305mm)
aileron extensions, (2) Y connectors, 1000+ mAh battery, propeller

Unveiled in 1932, Beech Aircraft Corporation's Staggerwing was instantly distinguished by its forward-
projecting lower wing. The Staggerwing continues to impress as this 1.60-size sport-scale ARF - a model
that sets new high standards for simplicity of scale detail! Top Flite uses only the best materials - premium Enjoy 9-channel PCM and 8-channel FM capacity, plus easy
woods, high-quality fiberglass, and MonoKote covering - and the finest engineering. For easy transport, the programming - and more! Using the 16K CAMPac module
wings disassemble into four manageable pieces. At the field, the halves plug into joiner tubes and secure included with 9C Super radios, you'll have memory for a
with nylon bolts. The fiberglass wing struts install easily as well, and authentic-looking stringers perfectly whopping 18 models. With a selectable switch through
complement rivets and panel lines molded into the fiberglass fuselage. Elevator and rudder linkages mount channels 5, 7 or 8, you can set up a 2-rate or 3-rate GYA
internally to preserve the scale profile. Add a 1.60-size 2- or 4-stroke engine and you'll have plenty of muscle gyro system for your airplane. Plus, the air brake is switch-
for powering through the air! selectable, and the heli mode's Throttle and Pitch Curves
features a delay that smoothes the transition from hover to
idle-up. 9C Super radios are available in both FM and PCM
modulations on 72MHz, with or without S3151 and/or S9252
O.S.® .50 SX digital servos. All come with full NiCds.
OSMG0550
There's nothing wrong with wanting more out of aerobatics, and the For the ultimate in convenience, choose 9C Super
.50 SX Ring delivers it. It punches out 10% more power than a .46, yet systems that feature the 9C/9CS Synthesized Module and
fits in the same space as a .40. It's a clear gain in performance AND R319DPS Synthesized Receiver PCM. They allow pilots to
options, for sport flying and aerobatics, and here's why. The 1-piece select any channel on 72MHz, without the hassle of
remote needle valve can be repositioned for standard upgright or side selecting and installing crystals!
mounting and the fuel inlet rotates, for ease either way you go. Also
included: dual bearings, an #873 muffler and 2-year warranty.
Displacement: 0.499 cu in (8.18cc) Output: 1.8 bhp @ 17,000 rpm
Bore: 0.866 in (22mm) Practical rpm range: 2000-20,000
Stroke: 0.847 in (21.5mm) Weight: 13.8 oz (391.2g)