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Shaped Foam (Optional)

This document provides instructions for building the Drake II seaplane model. The model has a 45-inch wingspan, 31-3/8 inch length, and is designed to have an AUW of 18-22 ounces. It uses an Esskay 400XT motor, Master Airscrew 8x6 3-blade propeller, and TowerPro "mag8" 25amp ESC. The center of gravity is located 2.75 inches from the leading edge at the main spar. Diagrams show the placement of various components including the battery, receiver, servos and control surfaces.

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Silnara Cristiane Parmagnani
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204 views13 pages

Shaped Foam (Optional)

This document provides instructions for building the Drake II seaplane model. The model has a 45-inch wingspan, 31-3/8 inch length, and is designed to have an AUW of 18-22 ounces. It uses an Esskay 400XT motor, Master Airscrew 8x6 3-blade propeller, and TowerPro "mag8" 25amp ESC. The center of gravity is located 2.75 inches from the leading edge at the main spar. Diagrams show the placement of various components including the battery, receiver, servos and control surfaces.

Uploaded by

Silnara Cristiane Parmagnani
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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FFF/BluCor (5mm-6mm thickness) shaped foam (optional)

Drake II Seaplane 45” wing span (not including tips)


BASED ON KEN WILLARD DESIGN 31-3/8” long (not including rudder)
18-22oz AUW
Esskay 400XT motor
+2deg Master Airscrew 8x6 3-blade prop
TowerPro “mag8” 25amp ESC
3-4 9gram servos

+2deg

NC74335 level flight


water line
Drake II

Make sure the step is sharp/square. If it is rounded off, it


will create too much water tension, making ROW difficult.

<< ESC >>

CG at 2.75” from LE = center of main spar


<< RX >>

F7
<< battery >>

F6
F1 F5

F2 F3 F4

dihedral brace
keel
outrigger float ribs (x4)

ply

F7

F1
F6
F5
F2 F3 F4

wing ribs (x12)


rudder

outrigger brace (15” - 22”) shaped foam (optional)


vertical stabilizers
NC74335
DRAKE-III

F7
<< battery >>

F6
F1 F5

F2 F3 F4
F4

F2

ply
F1

F3 F7
F5
wing ribs (x12)

F6
v-stab

rudder
H-stab

elevator
CL
floor

keel
floor

keel
outrigger float ribs (x4)

floor
shaped foam
v-stab (x2)

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