PA-31 Navajo

powered by
Reality Expansion Pack

v4.8.9
December 29, 2024

1
 Reality Expansion Pack
Piper PA-31 Navajo CONTENTS

Contents
AIRCRAFT GENERAL DESCRIPTION 4

INSTALLATION & CONFIGURATION 5

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Install the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Automatic Update of the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Manual Update of the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remove the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Recommended sound settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended control settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

HARDWARE & SOFTWARE COMPATIBILITY 9

Headshake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Saitek Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
XPRealistic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Differential and progressive brakes for X-Plane 11 . . . . . . . . . . . . . . . . . . . . . 9

USER INTERFACE 10
Lateral Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Kneeboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mass & Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Walkaround . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Move the viewpoint while doing the walkaround in 2D . . . . . . . . . . . . . . . . 16
Walkaround in VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Move the viewpoint while towing in 2D . . . . . . . . . . . . . . . . . . . . . . . . 17
Towing in VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Engine Autostart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Settings Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Use Advanced Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Use Advanced Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Use VR Walkaround and Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Wait for real weather at startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
In flight tips vertical offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Economy System 20
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Enabling the Economy System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FSEconomy: Aircraft Key Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Maintenance and Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Buying and Selling Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Earning Money: Rewards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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 Reality Expansion Pack
Piper PA-31 Navajo CONTENTS

VR Support 26
How to open the plugin windows in VR . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

SOUNDS SYSTEM 27

PERSISTENT AIRCRAFT AND COMPONENTS WEARING 28

How to load a worn out aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
How to check the components status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Hobbs Time and Tach Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SYSTEMS DESCRIPTION 30
Powerplant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Engine Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Induction System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Spark Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Oil System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Engine Startup Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Vacuum System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Electrical Systems & Avionics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Electrical Gyros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Radio Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Landing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
System Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Oxygen System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

HUMAN FACTOR 39
Hypoxia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
TUC & EPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

HOME COCKPITS/CUSTOM DATAREFS 41

RESOURCES & HOW-TOs 48

SUPPORT & CONTACTS 48

VERSION CHANGELOG 49

LICENCE 50
SOFTWARE PRODUCT LICENSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
LibCURL EULA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
COPYRIGHT AND PERMISSION NOTICE . . . . . . . . . . . . . . . . . . . . . . . . 52

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 Reality Expansion Pack
Piper PA-31 Navajo

AIRCRAFT GENERAL DESCRIPTION

The Piper PA-31 Navajo is a family of cabin-class, twin-engined aircraft designed and built by Piper
Aircraft for the general aviation market, most using Lycoming engines. It was also license-built in
a number of Latin American countries. Targeted at small-scale cargo and feeder liner operations
and the corporate market, the aircraft was a success. It continues to prove a popular choice, but
due to greatly decreased demand across the general aviation sector in the 1980s, production of
the PA-31 ceased in 1984.
Source: (Wikipedia)[https://en.wikipedia.org/wiki/Piper_PA-31_Navajo]

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 Reality Expansion Pack
Piper PA-31 Navajo

INSTALLATION & CONFIGURATION

System requirements
This software requires X-Plane 11.00 or superior.
The minimum hardware requirements are the same of X-Plane:
• Dual Core, 2.5 GHz or faster
• 2 GB of RAM
• A video card with at least 500 MB of VRAM.
This software is designed to run on Windows, MacOS and Linux.

Linux
If you use REP on Linux, there are some addictional requirements:
• libstdc++6
• libgcc6
• libcurl
• libssl
• libcrypto
On Steam: Right-click on X-Plane 12, select Properties, navigate to Compatibility, check the box
for “Force the use of a specific Steam compatibility tool,” and choose “Steam Linux Runtime 3.0
Sniper” or “Legacy Runtime 1.0” from the dropdown menu.

Mac
REP requires the FreeType library to render fonts and graphics correctly.
FreeType is an open-source software library used to render text in graphics and applications.
It is a critical dependency for many programs, including REP. If FreeType is not installed or not
detected on your Mac, REP will fail to load properly.
To install FreeType on your Mac, follow these simple steps:
1. Install Homebrew (if not already installed): Homebrew is a package manager for macOS
that simplifies the installation of software like FreeType.
Open the Terminal (search for “Terminal” in Spotlight or find it in the Applications > Utilities
folder). Run the following command to install Homebrew:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)
2. Install FreeType using Homebrew:
After Homebrew is installed, run this command in the Terminal: bash
brew install freetype
3. Verify FreeType Installation:
Once FreeType is installed, verify its presence by typing:

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 Reality Expansion Pack
Piper PA-31 Navajo Install the software

freetype-config --version
In order to install this software, the Piper PA-31 Navajo for X-Plane 11 by Carenado must be
installed on your system.

Install the software

Note: A video tutorial is available on our YouTube Channel
To install the software please follow this procedure.
1. Locate the PA-31 Navajo folder inside your X-Plane installation.
2. Clone the PA-31 Navajo folder and call it “PA-31 Navajo REP”.
3. Extract the contents of this REP package into a temporary folder
4. Move the contents of “into-aircraft-plugins-folder” into the “PA-31 Navajo REP/plugins”
folder
5. Move the contents of “into-aircraft-main-folder” into the “PA-31 Navajo REP” folder
6. Run X-Plane and load the PA-31 Navajo.
7. Follow the onscreen instructions

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 Reality Expansion Pack
Piper PA-31 Navajo Automatic Update of the Software

Automatic Update of the Software

The Reality Expansion Pack support the automatic updates via the SkunkCrafts Updater plugin.
In order to activate the automatic updates you shall:
1. Install the SkunCrafts Updater plugin as stated in its user manual
2. Inside REP’s zip, inside the “into-aircraft-main-folder”, you find a file called skun-
crafts_updater.cfg. Copy such file into the PA-31 Navajo main folder.

NOTE
• Always install REP’s skunkcrafts_updater.cfg file even when the airplane already comes
with its own cfg. REP updates will automatically install the base airplane updates whenever
available.
• Load a non-REP airplane - such as the default Cessna 172 - before applying the automatic
updates. Applying the updates on the aircraft that is currently loaded in the sim will not
guarantee a successful update.
• After updating the plane, close and relaunch X-Plane to make sure that all the files are
unloaded and updated correctly.

Manual Update of the software

NOTE: It is not necessary to remove the older REP files. The software will take care of the update
procedure.
1. Copy the “REP” folder contained in this package inside the “plugins” folder of the PA-31
Navajo, overwriting the existing one.
2. Run X-Plane and load the PA-31 Navajo.
3. Reload the aircraft when the automatic update is finished.

Remove the software

To remove the software follow this procedure:
1. In the menu bar click on “Plugins”
2. Click on “SimCoders.com - REP” and choose “Disable Package”
3. Click “Ok” in the confirmation message
4. Reload the aircraft when the uninstallation procedure ends
At the end of the uninstallation procedure, the original aircraft will be restored to its mint condi-
tions.

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 Reality Expansion Pack
Piper PA-31 Navajo Recommended sound settings

Recommended sound settings

To better enjoy the Reality Expansion Pack on the PA-31 Navajo, you should setup your sound
settings like the following screenshot.

Figure 1: Recommended sound settings

For more information about the sounds, see the Sounds System chapter.

Recommended control settings

To have a better control over the airplane axis, you should setup your control sensitivity as
follows.

Figure 2: Recommended control settings

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 Reality Expansion Pack
Piper PA-31 Navajo

HARDWARE & SOFTWARE COMPATIBILITY

Headshake
If HeadShake v1.5 or higher is installed in your system, it will communicate with REP to improve
the simulation realism.
REP will drive HeadShake to simulate the vibrations of the real engine. Using this, you will be able
to run the engine at the most comfortable RPMs by simply checking the vibrations it produces.
In the same way, HeadShake will simulate the stall buffeting if the airplane in use shows that
kind of behavior.

Saitek Panels
This software is compatible with Saitek Panels. In order to use them, you should install the
XSaitekPanels free plugin from Sparker.
This package already includes a INI configuration file for XSaitekPanels. Make sure you copy it
inside the main folder of your PA-31 Navajo.

XPRealistic
The Reality Expansion Pack can be used together with XPRealistic.
You might need to disable XPRealistic’s wind, touchdown and brakes sound effects as REP
already provides them.

Differential and progressive brakes for X-Plane 11

The Reality Expansion Pack detects if Differential and progressive brakes for X-Plane 11 is
installed in your system.
If so, REP’s differential braking algorithm is disabled in favor of the custom differential brakes
algorithm of the third party plugin.

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 Reality Expansion Pack
Piper PA-31 Navajo

USER INTERFACE
Lateral Menu
When loaded, REP shows a lateral menu on the left-side of the screen. The menu consists of a
set of small icons.
By default, the menu partially hides itself until the mouse pointer gets near it.

Figure 3: The menu is partially hidden by default

Figure 4: The menu is shown when the mouse pointer gets closer to it

You can choose to completely hide the menu when the mouse pointer leaves it. To do so, go
to “Plugins -> SimCoders - REP -> Settings” menu and tick the “Show side menu on mouse over
only” option.
The lateral menu entries are available in the “Plugins -> SimCoders - REP” menu as well.

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 Reality Expansion Pack
Piper PA-31 Navajo Maintenance Report

Maintenance Report
This window is the primary way you have to check the status of your airplane and to fix all the
systems that need the mechanic attention.
The report is divided on more pages. Each page relates to a different group of systems.
To act on a system, click on the entry in the “Action” column.
To switch to the previous/next page click over the flipped page corners at the bottom of the
report.

Figure 5: The Maintenance Report window

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 Reality Expansion Pack
Piper PA-31 Navajo Kneeboard

Kneeboard
The software come with a complete kneeboard window that contains the aircraft normal and
emergency checklists together with the performance reference tables.

Figure 6: The Kneeboard window

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 Reality Expansion Pack
Piper PA-31 Navajo Kneeboard

Show the kneeboard using the plugins menu

The kneeboard window may be shown by clicking on the “Plugins” menu, then “SimCoders –
REP” then “Show kneeboard”.

Manage the kneeboard using the custom commands

You can also use five different custom commands at which you can assign your custom keys or
joystick buttons. The custom kneeboard commands defined by REP are the following:

Command Description
simcoders/rep/kneeboard/toggle Show or hide the kneeboard
simcoders/rep/kneeboard/next_section Show the next kneeboard section
simcoders/rep/kneeboard/prev_section Show the previous kneeboard section
simcoders/rep/kneeboard/next_page Show the next kneeboard page
simcoders/rep/kneeboard/prev_page Show the previous kneeboard page

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 Reality Expansion Pack
Piper PA-31 Navajo Mass & Balance

Mass & Balance

The Reality Expansion Pack provides a Mass & Balance tool to precisely load the plane.
While loading the plane, the goal is to keep the crosses inside the plot section delimited by the
blue area, like shown in the screenshot below.

Figure 7: The Mass & Balance window

The blue area is the Center of Gravity Envelope. The mass is reported on the Y axis, the Center
of Gravity Arm is reported on the X axis.
If the cross is towards the left side of the plot, it means that the center of gravity will be towards
the front of the airplane, that is, the airplane will be nose heavy.
On the other hand, if the cross is on the right side of the plot, the airplane will be tail heavy.
If you overload the airplane and the cross goes outside the blue envelope, the cross becomes
red, indicating that the plane is not allowed to fly.
Clicking on the “Apply” button, the selected passengers mass and fuel load will be applied to
X-Plane.
The unit of measure for the airplane mass and the C.G. arm can be changed by clicking the

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 Reality Expansion Pack
Piper PA-31 Navajo Mass & Balance

“Change Units” button.

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 Reality Expansion Pack
Piper PA-31 Navajo Towing

Walkaround
Click on the Walkaround icon in the lateral menu to enter walkaround mode. Click again on the
same icon on close the walkaround window to return in the cockpit.
During walkaround you can interact with some external systems of the aircraft using the walka-
round window. Click the “Next” and “Prev” buttons at the bottom of the pre-flight checklists to
move along the different pre-flight stations.
Always do the walkaround and the pre-flight inspection before each flight.
If you do not remove the tie-down and the chocks, you are not able to taxi and takeoff properly.
If you do not remove the pitot cover, you will incur an airspeed indicator failure.
Since version 3.4.5, it is possible to toggle all the static elements - such as the pitot cover and
the tiedowns - using a single entry in the plugins menu or a keyboard command.
Since version 3.3, the following keyboard/joystick commands are available to control the walka-
round mode.

Command Description
simcoders/rep/walkaround/toggle Toggle the walkaround mode
simcoders/rep/walkaround/next Next walkaround station
simcoders/rep/walkaround/previous Previous walkaround station
simcoders/rep/walkaround/action Execute current action
simcoders/rep/walkaround/static_elements/toggle Static elements toggle

Move the viewpoint while doing the walkaround in 2D

It is possible to move the viewpoint during towing by using the default camera commands of X-
Plane. To pan the view using the mouse, keep pressed the simcoders/rep/view/pan_with_mouse
command.

Walkaround in VR
REP provides a series of hotspots around the airplane useful to check the plane during the
pre-flight, post-flight and lights-check checklists.
Start the walkaround using the simcoders/rep/walkaround/toggle command and then move
from station to station using your VR controller. Make sure you bring the walkaround window
with you while moving from a station to another.

Towing
REP comes with a complete towing simulation. To activate it, click on the towing icon in the
lateral menu. Click the icon again to exit from the towing mode.
The towing features a 3D towing bar that will help you driving the airplane on the tarmac.
To move the airplane, push or pull the pitch axis of your joystick. Use the roll axis to turn.

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 Reality Expansion Pack
Piper PA-31 Navajo Engine Autostart

Since REP simulate the force applied by a single man placed in front of the airplane, you may not
be able to tow the airplane on the grass, just like in real life.
You won’t be able to tow the airplane if it’s tied-down or if chocks/brakes are applied.

Move the viewpoint while towing in 2D

It is possible to move the viewpoint during towing by using the default camera commands of X-
Plane. To pan the view using the mouse, keep pressed the simcoders/rep/view/pan_with_mouse
command.

Towing in VR
REP provides an hotspot in front of the airplane (tricycle gear) or close to the tail (taildragger)
useful to drive the airplane in VR mode.
Toggle the towing mode using the simcoders/rep/towing/toggle command and then move the
airplane using your joystick as described above.

Engine Autostart
The Reality Expansion Pack provides you a way to automatically start the engines.
Click on the engine autostart icon in the side menu and wait until the startup procedure is
completed.
During the automatic start, REP shows a series of tips that describe the action being done.

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 Reality Expansion Pack
Piper PA-31 Navajo Settings Window

Settings Window
The settings windows is shown by clicking over the “Plugins -> SimCoders - REP -> Settings”
menu.

Enable the plane damages

When ticked, this option enable the plane damages.

Show generic messages

If ticked, REP will show generic messages related to systems status, when available.

Show failure messages

If ticked, REP will show a message in case of a system failure. The message will explain why the
failure happened and what course of action should be taken.

Show tip messages

If ticked, REP will show a tip message. The message will give some hints related to the current
pilot actions.

Show side menu on mouse hover only

When ticked, REP will completely hide the lateral menu when the mouse pointer leaves it.

Save and restore the plane status between sessions

If ticked, REP will save the airplane status when unloaded. When the same plane and livery are
loaded again, the status will be restored.
The status includes all the switches position, the fuel on-board, the loaded weights, the engine
fluids quantity and quality and all the possible values that play part to the systems simulation.
The engine temperatures - such CHT and Oil Temperature - are restored accordingly to the
elapsed time since the values where stored.
The status files are backed up before being overwritten. You find the backup in the
output/preferences/REP folder.

Save and restore the windows position between sessions

If checked, the Maintenance Hangar and the Keyboard windows positions are saved and restored
between sessions.

Enable hypoxia effect

When ticked, the default hypoxia effect is replaced by REP’s custom algorithm. See the Hypoxia
chapter to get more information about the custom hypoxia effect.

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 Reality Expansion Pack
Piper PA-31 Navajo Settings Window

Roll axis drives ground steering

When ticked, the joystick roll axis will steer the nosewheel on the ground.

Use US Customary
When ticked, REP will use the US Customary units of measure (pounds and inches).

Wind sound level

Control cabin the wind sound setting the level between 0 (mute) and 100 (full).

Main Monitor Index

This option is visible only if X-Plane is running on two or more fullscreen monitors. Type the
index of the monitor over which REP must show its menus and windows. The minimum number
you can set here is 1. The maximum number is your monitors count. Each number addresses a
different monitor.

Use Advanced Steering

Enable this option to use REP’s advanced steering algorithm. You may need to disable this option
if you have issues with steering with your hardware pedals.

Use Advanced Braking

Enable this option to smooth the brakes and to enable the automatic differential brakes. Instead
of applying the brakes all at once, they will go from 0 to 1 in two seconds, smoothing the braking
action. Automatic differential braking is applied if brakes are pressed while steering. Disable
this option if you use hardware toepedals.

Use VR Walkaround and Towing

When enabled, this option allows to use the new VR walkaround and towing modes.

Wait for real weather at startup

When this options is enabled together with the simulator real weather, REP waits for the real
weather to be correctly loaded before loading the plane status and update the systems’ tempera-
tures. This option is not needed in X-Plane 12 therefore it is not shown.

In flight tips vertical offset

Set the vertical offset of the in-flight window. By default, the tips are shown at the top of the
main screen.

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 Reality Expansion Pack
Piper PA-31 Navajo

Economy System
The Reality Expansion Pack (REP) introduces a custom Economy System that rewards you for
your flight time and allows you to manage maintenance and repair costs for your aircraft.

Modes of Operation
The Economy System offers three modes of operation:
• Standalone: Maintains a local bank account and maintenance records on your PC, shared
among all your REP aircraft. Rewards are provided for flight time and landing skills.
• FSEconomy: Connects to your FSEconomy account, deducting maintenance costs directly
from your FSEconomy balance. Flight time rewards are excluded, as they are handled by
FSEconomy.
• X-CPL-Pilot: Integrates with your X-CPL-Pilot account to deduct maintenance costs. Flight
rewards are not included, as they are managed by X-CPL-Pilot.

Enabling the Economy System

To activate the Economy System:
1. Open the Maintenance Report and navigate to the last page.
2. Click the “Enable” button for your chosen system.

FSEconomy: Aircraft Key Setup

If enabling the FSEconomy mode, an Aircraft Key is required. This key is a 15-character identifier
unique to your aircraft within the FSEconomy environment.
Steps to find your Aircraft Key:
1. Log in to the FSEconomy website.
2. Select the “Aircraft” button from the main menu.
3. Locate your aircraft in the list and click “Edit” under the “Action” column.
4. Generate or copy the Aircraft Key from the lower-left corner of the page.
When enabled, the Economy System saves your aircraft state to a separate file. This allows for
two independent aircraft states—one for when the Economy System is active and another for
when it is disabled. Switching between modes will load the corresponding state.
Your bank account is shared across all REP aircraft, enabling you to use funds earned with one
aircraft to repair or maintain another.

How It Works
Once activated, the Economy System displays your bank account balance and transaction history
(expenses for maintenance and fuel, and income from flights) in the Maintenance Report.

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Piper PA-31 Navajo How It Works

Figure 8: Enable the Economy System

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Piper PA-31 Navajo How It Works

Figure 9: Economy System Overview

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Piper PA-31 Navajo How It Works

Maintenance and Repairs

1. Navigate to the Maintenance Report to view available maintenance tasks.
2. For each task, the table lists the cost and required work time.

Figure 10: Maintenance Report Example

3. Add tasks to your Quotation by clicking the “Action” cell for each item. The cell will update
to show “In Quote”.
4. To remove a task, click the “Action” cell again.
Once you’ve selected the necessary actions, view your Quotation by clicking “View Quotation” or

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 Reality Expansion Pack
Piper PA-31 Navajo How It Works

scrolling to the last page of the Maintenance Report.

Figure 11: Quotation Example

The Quotation provides two pricing options:

• Normal Price: Maintenance is completed one task at a time in real-time, even if multiple
aircraft require attention. The mechanic will continue working even if the simulator is
closed.
• Quick Fix Price: All tasks are completed instantly at a higher cost.
Accept a price to proceed with maintenance, or decline to cancel the Quotation.

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Piper PA-31 Navajo Buying and Selling Fuel

Buying and Selling Fuel

Standalone Mode Only
In the Weight and Balance window, you can add or remove fuel:
• Adding Fuel: Deducts money from your account based on local prices.
• Removing Fuel: Sells fuel back to the airport at a slightly lower rate than the purchase
price.
Fuel prices vary by region, airport, and time, but can be customized via the fuel_prices.cfg file
in the Output/preferences/REP directory of X-Plane. Note that custom prices are only applied
after the next scheduled recalculation (every 4–8 days).
To check fuel prices at a specific airport, use the plugin menu: SimCoders - REP -> Check fuel
price at an airport.

Earning Money: Rewards

Standalone Mode Only
Earn money for flight time, with bonus rewards for smooth landings. The softer the landing, the
higher the bonus. Flight earnings are logged in your bank account transaction history at the end
of each flight.

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Piper PA-31 Navajo

VR Support
REP supports the native VR implementation since version 3.4.0. VR support was further improved
in version 4.5.0.

How to open the plugin windows in VR

REP provides a set of commands to control the plugin windows.
• simcoders/rep/vr/open_menu: open REP’s main menu
• simcoders/rep/fuelmenu/show: show the fuel menu when using the economy system
• simcoders/rep/maintenancereport/show: show the maintenance report
• simcoders/rep/settingsmenu/show: show the settings menu
• simcoders/rep/weightandbalance/show: show the weight and balance (if supported)
• simcoders/rep/towing/toggle: toggle the tow mode
• simcoders/rep/kneeboard/toggle: toggle the kneeboard
• simcoders/rep/walkaround/toggle: toggle the walkaround mode
For more information about how to assign the commands above please read X-Plane’s user
guide about assigning commands to buttons.

NOTE
Make sure you loaded a REP airplane before looking for the command in X-Plane’s settings
window.

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Figure 12: The Tech Report shown in VR mode

SOUNDS SYSTEM
The Reality Expansion Pack features a custom sound system that provides immersive 3D sounds
throughout the entire flight experience.
A custom sounds system has been preferred over the usage of FMOD for the following reasons:
• FMOD could be rather cumbersome from the developer’s point of view, requiring more time
to produce new features
• A custom engine is more flexible and can be expanded in no time providing new features
• A custom engine is more efficient as it’s taylored to our needs
REP’s sounds system provides advanced sounds such:
• Engine ignition
• Engine pings
• Engine exhaust effects
• Fuel pumps
• Electric Gyros
• Avionics effects
• Dynamic touch down
• Dynamic ground roll
• Dynamic wind

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PERSISTENT AIRCRAFT AND COMPONENTS WEARING

The Reality Expansion Pack features a complete wearing system for the entire airplane. That is,
each component of the airplane wears out when in use and, after a certain amount of time, it
may start to show some issues or fail completely.
The status of each component is saved and updated even if the sim is not running.
This is true for things such as engine components, electrical system parts, airframe, and landing
gear.
Every component will be affected by time and by user’s handling in different ways.
If you mistreat the engine by running it above its limits, it will get worn out, showing startup
issues, combustion problems and providing less power than expected. It will completely fail
over time.
The cockpit instrumentation needles will be more precise in a newly calibrated gauge rather than
in an old one.

How to load a worn out aircraft

REP gives you the chance to load an aircraft that is already worn out by its past history.
To do so, go to “Plugins -> SimCorders.com - REP -> Wear out to >” and choose one of the
following items.
• Brand New: this is the status of an aircraft that just left the production line. The engine is
brand new and all the onboard systems were just tested.
• Privately Owned (new): this is an almost new aircraft that has been privately owned with
care. The engine as well as the other systems will have some hours logged but no issues
are in place.
• Privately Owned (old): this is an aircraft that has been owned privately for years. The
engine as well as the other systems will have many hours logged but no issues are in place
as the private owner kept the plane with good care.
• Flying Club: this plane has been in the hands of many pilots, some of them careless. The
systems are weared out quite much and some gauges are not working as good as you
would like them to do.

How to check the components status

To check each component and fix/replace/calibrate it, use the Maintenance Report.
In there are listed all the aircraft components that can be checked by a mechanic.

Hobbs Time and Tach Time

In the Maintenance Report you find the airframe total time (Hobbs Time) and the engine’s total
time (Tach Time). The two value may slightly differ after loading a brand new airplane and then
flying it for a while. This is because there’s an important difference in how the two times are
calculated.

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 Reality Expansion Pack
Piper PA-31 Navajo Hobbs Time and Tach Time

Hobbs Time
In most planes, the Hobbs clock is started and stopped based on an oil pressure switch, so it
starts when the engine starts, and stops when the engine is shut-down. While it’s running, it just
ticks off a tenth of an hour every 6 minutes, based on “regular wall clock time”. So a tenth of
idling on the ramp is the same as a tenth at cruise.

Tach Time
The tach clock isn’t really a clock at all, it doesn’t actually measure time, it really measures engine
revolutions. But it’s calibrated such that a tenth of an hour of tach time is clicked off when the
engine is at cruise RPM for 6 minutes. In other words, if the plane is at cruise RPM, the tach
clock will be clicking off tenths of an hour at the same rate as the Hobbs clock. But if the engine
is idling at an RPM speed that’s half of what cruise RPM is, then the tach clock will be running at
half the speed of the Hobbs clock.

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SYSTEMS DESCRIPTION
Within the Reality Expansion Pack, each system has its own life-cycle and can be damanged
depending on many factors, including the pilot’s behavior.
All systems can be fixed individually using the Maintenance Report or all at once using the
simcoders/rep/systems/fix_all command.
The following is a brief description of each system onboard.

Powerplant
The PA-31 Navajo is powered by a two six-cylinders Lycoming TIO-540-A2C Turbocharged, direct-
drive, air-cooled, horizontally-opposed, fuel-injected engine with 540 cubic inches displacement.
This engine outputs a maximum power of 310HP at 42 inches Hg and 2575RPM.

Engine Overview
The Reality Expansion Pack totally replaces the engine simulated by X-Plane with custom algo-
rithms to the point that not a single bit of the old engine model is left in the sim.
Everything in the engine is made from scratch to provide the maximum realism. This includes
the combustion model to which all the other models - such as the Power Output, the Cylinders
Head Temperature or the Oil Pressure - depend.
The engine now breathes air, mix it with fuel and produce a realistic combustion.
Some of the features include:
• Correct animations and sounds: the cylinders compression is simulated to the deepest
level, enhancing the propeller movements at very low RPMs and at startup and shutdown
• Correct power output: the engine outputs the correct power at every MAP/RPM setting.
• Correct fuel flow: reaching the correct power output allows X-Plane to provide the right
fuel flow at every phase of the flight, right down to the numbers.
• Realistic startup procedure: The engine needs to be primed and prepared for startup
following the correct procedure
• Realistic engine issues:
– The oil type, quality and quantity affects the engine behavior.
– The spark plugs may foul because of carbon deposits
– Leaning the mixture at the wrong time or in the wrong way may cause damages to
the engine
– Engine preheater and winterization kit: the engine may be preheated in winter using
the provided electric engine heater. If the engine is not heated correctly, it won’t start
or may be damaged after start.

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Piper PA-31 Navajo Powerplant

Starter
The Reality Expansion Pack replaces the default starter with a custom one.
In the “Engine Status” page of the Maintenance Report you can:
• Check the starter status
• Replace a faulty starter with a new one

CAUTION
The starter will overheat and then damage if engaged for too long. Make sure to engage the
starter for no more than 30 seconds. Let it cool down between failed starts.

Induction System
The Reality Expansion Pack replaces the Manifold Absolute Pressure (MAP) algorithm of X-Plane
with a custom one.
The PA-31 Navajo engine is supercharged. That is, it can provide the same amount of power at
low altitude as well as at high flight levels.
To do so, the engine is equipped with a supercharger.

Turbo-supercharger
It consists in a small turbine powered by the engine’s exhaust gas. The gas spins the turbine
that sucks in fresh air from the other side and compress it, pushing it inside the engine.
This allow the engine to maintain its power at high altitude. The Lycoming TIO-540-A2C can
provide 310HP up to 20.000 feet.
The TIO-540-A2C turbocharger features an automatic wastegate that dumps the pressure in
excess to avoid an engine overboost.
The automatic wastegate keeps the MAP constant as far as possible. That is, once the throttle
is set it should not be reset during altitude changes.
The automatic wastegate is oil driven using the same oil that lubricates the engine. It opens
through a spring and closes thanks to the engine’s oil pressure. Since the oil pressure takes
some time to build up, the maximum MAP limitations can be exceeded if the throttle is advanced
too fast towards the maximum value.

System Limitations

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Piper PA-31 Navajo Powerplant

Spark Plugs
Each cylinder is provided with two spark plugs, one connected to the left magneto and the other
connected to the right magneto.
Carbon deposits form on the spark plugs pointers if the engine is run at low RPMs with rich
mixture. That is, the spark plugs foul.
To avoid fouling, always keep at least 1000RPM and aggressively lean the mixture when on
ground.
A big drop in RPM during the magnetos check is a sign of a fouled spark plug.
To clean the spark plugs, set a high power setting and aggressively lean the mixture. Run the
engine with this setting for about 20 seconds then recheck the magnetos.
In the “Engine Status” page of the Maintenance Report you can:
• Check the spark plugs status
• Manually clean the spark plugs
Fine wire spark plugs are less prone to fouling but not immune to it.

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Piper PA-31 Navajo Powerplant

Oil System
The oil system has the main role to lubricate the engine thus reducing the friction between engine
components. It also helps reduce the engine temperature.
The oil system is made by:
• An oil tank
• A screening filter
• A set of oil lines that go to the cylinders
• An engine-driven scavenging pump that moves the oil from the bottom of the oil sump -
below the engine - back to the oil tank
• An oil radiator.
The Reality Expansion Pack simulates all these components as well as the oil fluid properties.
The pilot must check the quantity and quality of the oil before each flight. This should be done
during the walkaround.
In the “Engine Status” page of the Maintenance Report you can:
• Check the type of oil fluid in use
• Check the quantity of oil fluid in the oil tank
• Change the oil fluid type
• Check the status of the oil filter
• Change the oil filter with a new one
• Check the oil pump status
• Overhaul the oil pump
A higher grade oil - such SAE50 - is thicker than a lower grade - such SAE30 - and meant to be
used in hotter climates.
The following article is a guide to choose the correct oil grade depending on the type of flight op-
erations in progress: https://www.simcoders.com/2016/04/18/how-to-choose-right-oil-engine
If the oil is not changed regularly (about every 40 hours) it may get dirty and have a lower lubricant
action. That is, the engine will run hotter and wear more than before.

NOTE
The oil pressure may get closer to its maximum value when a cold engine is first started. This is
normal and do not cause any harm to the engine as long as the oil pressure gets lower during
engine warmup.
Warmup the engine to ensure the correct oil temperature and pressure before applying full power
for takeoff.

CAUTION

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Piper PA-31 Navajo Vacuum System

Using a higher grade oil in cold climates could lead to high oil pressure, thus damaging the oil
system components.

Engine Startup Tips

• If the engine “pops” during the startup it means it’s flooded. Just close the mixture and set
the throttle full open, then engage the starter. The engine should start in a few revolutions.
If not, repeat the normal startup procedure.

Vacuum System
Each is provided with a vacuum pump used to power up the vacuum gyros.
A vacuum pump is connected to the engine via a quick-break shaft. In case of vacuum pump
seizure, the shaft breaks and no harm is done to the engine.
Use the vacuum gauge to check that the vacuum pump is properly working. A normal vacuum
reading is about 4 to 6 when the engine is running at cruise power.
In the “Engine Status” page of the Maintenance Report you can:
• Check the vacuum pump status
• Repair a broken vacuum pump

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Piper PA-31 Navajo Electrical Systems & Avionics

Electrical Systems & Avionics

The airplane is equipped with a 28-volt, direct-current electrical system.
The system uses a battery as the source of electrical energy. An 100-amp alternator maintains
its state of charge.

Battery
The default battery is replaced with a battery that keeps its charge between sim sessions and
discharges at a realistic rate. The battery state is updated even when the simulator is not running.
This means that if you leave your battery on, it will discharge even if X-Plane is closed.
In the “Electrical System & Avionics Status” page of the Maintenance Report you can:
• Check the battery charge
• Recharge the battery
• Disconnect the battery poles from the electrical system
If you plan not to fly the airplane for a while, you should disconnect the battery via the Maintenance
Window. This will avoid self-discharging and extend the battery life during storage.

Alternator
The alternator switch position is saved through all X-Plane sessions. Make sure it is switched in
the correct position according to the checklists throughout the entire flight.
The alternator switch operation may affect the avionics. Check the Avionics paragraph below to
get more information.

Lights
The light switch positions are saved through all X-Plane sessions.
If the airplane is not provided with strobe lights fmod sounds, the Reality Expansion Pack adds
the strobe lights sounds when the lights are switched on.

Electrical Gyros
The Reality Expansion Pack replaces the default X-Plane electrical gyros with custom ones with
a more realistic spin up/down dynamics.
The typical spin up/down sounds are reproduced when the battery switch is turned in the “On”
position. The instruments provided with an electrical gyro and therefore depending on the
electrical supply are the turn/slip indicator, the standby attitude indicator and the HSI, if they are
provided.

Radio Stack
The radio components save their own state - such as frequencies and knobs position - during
X-Plane sessions.

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Piper PA-31 Navajo Landing Gear

In the “Electrical System & Avionics Status” page of the Maintenance Report you can:
• Check the status of each radio
• Fix a faulty radio

CAUTION
Never turn on or off the engine or the alternator when the avionics switch is in the “On” position.
Doing so may trigger a overvoltage spike that could damage one or more avionics components.
The newer avionics such as the Garmin GNS430/530 are better protected from overloads but
they are not totally immune from them.

Landing Gear
The airplane is equipped with a tricycle, hydraulically actuated, retractable landing gear. When in
good shape, the landing gear requires from 6 to 8 seconds to fully extend or retract.
The Reality Expansion Pack introduces the following changes to the default landing gear:
• Improved ground roll physics: REP corrects the default behavior of X-Plane on ground in
cross wind conditions, when the airplane tended to steer against the wind.
• Custom touchdown sounds: The touchdown sounds tone and volume are related to the
touchdown speed. A harder touchdown will produce different sounds than a soft landing.
• Brakes sounds: Actuating the brakes produces the typical whining sound. Also the classic
squeaking sounds are reproduced when the brakes are not in perfect shape.
In the “Landing Gear & Brakes Status” page of the Maintenance Report you can:
• Check the status of the landing gear struts
• Fix a faulty strut

System Limitations
• Maximum Gear Operating Speed (Retraction): 129KIAS
• Maximum Gear Operating Speed (Extension): 156KIAS
• Maximum speed with gear extended: 156KIAS

Tires
The Reality Expansion Pack simulates the tire status and failure based on the landings done in
the past.
A flat tire can cause the plane to yaw during the landing run or get it stuck on the ground before
taxi.
In the “Landing Gear & Brakes Status” page of the Maintenance Report you can:
• Check the status of each tire

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Piper PA-31 Navajo Landing Gear

• Fix a faulty tire

Brakes
The PA-31 Navajo has a single-disc, hydraulically-actuated brake on each main landing gear
wheel. Each brake is hydraulically connected to a cylinder attached to each of the pilot’s rudder
pedals.
The brakes are operated by applying pressure to the top of the rudder pedals, which are intercon-
nected. When the airplane is parked the brakes may be activated using the parking brake switch
located under the pilot’s yoke.
To avoid brake failures, keep the brake system properly maintained and minimize brake usage
during taxi operations and landings.
Do not apply the brakes for a long time. If the runway is long, let the plane slow down by itself.
In the “Landing Gear & Brakes Status” page of the Maintenance Report you can:
• Check the status of the braking system
• Fix a faulty brake

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Piper PA-31 Navajo Oxygen System

Oxygen System
The plane is equipped with an oxygen system that provides oxygen to the pilot and the passengers
through oxygen masks.
The oxygen system is operated using an switch in the cockpit.
An oxygen pressure indicator is placed near the handle.
Above 12000 feet, make sure that the switch is on the pressure indicator reports a positive
pressure.
The oxygen flow pressure varies with the oxygen tank pressure.
The oxygen lasts for a different amount of time, depending on how many passengers are on-
board. Use Mass and Balance tool to set the number of people on-board the aircraft. The more
people are on-board, the less will the oxygen last.

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HUMAN FACTOR
Hypoxia
Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen
supply at the tissue level.
As altitude is gained, the partial pressure of Oxygen gets lower and lower to the point that the
human body is unable to absorb enough quantity of it to sustain life.
The symptoms of hypoxia are:
• Apparent personality change
• Impaired judgement
• Headache
• Tingling
• Increased rate of breathing
• Muscular impairment
• Memory impairment
• Visual sensory loss
• Tunnel vision
• Impairment of consciousness
• Cyanosis
• Unconsciousness
• Death
The Reality Expansion Pack simulates some of the symptoms above, such as the tunnel vision,
the increased rate of breathing and the muscular impairment.

TUC & EPT

Time of Useful Consciousness (TUC) is the time available for the development of hypoxia and
the pilot to do something about it. It is not the time to unconsciousness but the short time from
a reduction in adeguate oxygen until a specific degree of impairment, generally taken to be the
point when the individual can no longer take steps to help him/herself.
Effective Performance Time (EPT) is always within and shorter than TUC. Its quantification
however depends on the individual.

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Piper PA-31 Navajo Hypoxia

The following is a table that represent the EPT simulated by REP.

Altitude (ft) EPT

10000 Few hours
15000 40 minutes
20000 10 minutes
30000 30 seconds
40000 15 seconds
45000 1-2 seconds

Figure 13: Hypoxia effect

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HOME COCKPITS/CUSTOM DATAREFS

In order to work properly, REP uses a set of custom datarefs instead of default X-Plane ones.
Here you find a list of datarefs that you can use for your home cockpit.
This list includes all REP’s datarefs. Some of them might not be present on some REP, depending
on the systems depicted by the package.

Dataref: simcoders/rep/stallwarning/on
• Type: int
• Writable: No
• Contents: 0 = off, 1 = on

Dataref: simcoders/rep/stallwarning/level
• Type: int
• Writable: No
• Contents: 1 = low, 2 = high

Dataref: simcoders/rep/cockpit2/gauges/indicators/vacuum
• Type: float
• Writable: No
• Contents: Vacuum gauge value

Dataref: simcoders/rep/cockpit2/gauges/indicators/attitude_indicator_0_pitch
• Type: float
• Writable: No
• Contents: Main attitude indicator pitch

Dataref: simcoders/rep/cockpit2/gauges/indicators/attitude_indicator_0_roll
• Type: float
• Writable: No
• Contents: Main attitude indicator roll

Dataref: simcoders/rep/cockpit2/gauges/indicators/attitude_indicator_1_pitch
• Type: float
• Writable: No

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• Contents: Stdby attitude indicator pitch

Dataref: simcoders/rep/cockpit2/gauges/indicators/attitude_indicator_1_roll
• Type: float
• Writable: No
• Contents: Stdby attitude indicator roll

Dataref: simcoders/rep/cockpit2/gauges/indicators/airspeed_kts_pilot
• Type: float
• Writable: No
• Contents: Pilot airspeed

Dataref: simcoders/rep/cockpit2/gauges/indicators/airspeed_kts_copilot
• Type: float
• Writable: No
• Contents: Copilot airspeed

Dataref: simcoders/rep/cockpit2/gauges/indicators/altitude_ft_pilot
• Type: float
• Writable: No
• Contents: Pilot altitude

Dataref: simcoders/rep/cockpit2/gauges/indicators/altitude_ft_copilot
• Type: float
• Writable: No
• Contents: Copilot altitude

Dataref: simcoders/rep/cockpit2/gauges/indicators/vvi_fpm_pilot
• Type: float
• Writable: No
• Contents: Pilot VSI

Dataref: simcoders/rep/cockpit2/gauges/indicators/vvi_fpm_copilot
• Type: float

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• Writable: No
• Contents: Copilot VSI

Dataref: simcoders/rep/cockpit2/switches/avionics_power_on
• Type: int
• Writable: Yes
• Contents: Avionics switch

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_0
• Type: float
• Writable: No
• Contents: Fuel kg in tank 0

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_ratio_0
• Type: float (ratio 0..1)
• Writable: No
• Contents: Fuel ratio in tank 0

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_1
• Type: float
• Writable: No
• Contents: Fuel kg in tank 1

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_ratio_1
• Type: float (ratio 0..1)
• Writable: No
• Contents: Fuel ratio in tank 1

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_2
• Type: float
• Writable: No
• Contents: Fuel kg in tank 2

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_ratio_2

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• Type: float (ratio 0..1)

• Writable: No
• Contents: Fuel ratio in tank 2

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_3
• Type: float
• Writable: No
• Contents: Fuel kg in tank 3

Dataref: simcoders/rep/indicators/fuel/fuel_quantity_ratio_3
• Type: float (ratio 0..1)
• Writable: No
• Contents: Fuel ratio in tank 3

Dataref: simcoders/rep/engine/fuelline/electrical_feed_0/switch_on
• Type: int
• Writable: Yes
• Contents: L tip pump switch (1 = on)

Dataref: simcoders/rep/engine/fuelline/electrical_feed_1/switch_on
• Type: int
• Writable: Yes
• Contents: R tip pump switch (1 = on)

Dataref: simcoders/rep/indicators/fuel/fuel_flow_0
• Type: float
• Writable: No
• Contents: L FF indicator

Dataref: simcoders/rep/indicators/fuel/fuel_flow_1
• Type: float
• Writable: No
• Contents: R FF indicator

Dataref: simcoders/rep/cockpit2/gauges/indicators/engine_0_rpm

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• Type: float
• Writable: No
• Contents: L RPM indicator

Dataref: simcoders/rep/cockpit2/gauges/indicators/engine_1_rpm
• Type: float
• Writable: No
• Contents: R RPM indicator

Dataref: simcoders/rep/cockpit2/engine/actuators/fuel_pump_0
• Type: int
• Writable: Yes
• Contents: L pump (0 = off, 1 = on)

Dataref: simcoders/rep/cockpit2/engine/actuators/fuel_pump_1
• Type: int
• Writable: Yes
• Contents: R pump (0 = off, 1 = on)

Dataref: simcoders/rep/cockpit2/engine/actuators/low_fuel_pump_0
• Type: int
• Writable: Yes
• Contents: L LO speed pump

Dataref: simcoders/rep/cockpit2/engine/actuators/low_fuel_pump_1
• Type: int
• Writable: Yes
• Contents: R LO speed pump

Dataref: simcoders/rep/cockpit2/engine/actuators/high_fuel_pump_0
• Type: int
• Writable: Yes
• Contents: L HI speed pump

Dataref: simcoders/rep/cockpit2/engine/actuators/high_fuel_pump_1

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• Type: int
• Writable: Yes
• Contents: R HI speed pump

Dataref: simcoders/rep/engine/electrical_fuelpump/switch_on_0
• Type: int
• Writable: Yes
• Contents: L pump (0 off, 1 LO, 2 HI)

Dataref: simcoders/rep/engine/electrical_fuelpump/switch_on_1
• Type: int
• Writable: Yes
• Contents: R pump (0 off, 1 LO, 2 HI)

Dataref: simcoders/rep/engine/cowl/handle_ratio_0
• Type: float (ratio 0..1)
• Writable: Yes
• Contents: L cowl flaps handle

Dataref: simcoders/rep/engine/cowl/handle_ratio_1
• Type: float (ratio 0..1)
• Writable: Yes
• Contents: R cowl flaps handle

Dataref: simcoders/rep/engine/oil/temp_f_0
• Type: float
• Writable: No
• Contents: L oil temp (F)

Dataref: simcoders/rep/engine/oil/temp_f_1
• Type: float
• Writable: No
• Contents: R oil temp (F)

Dataref: simcoders/rep/engine/oil/temp_c_0

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• Type: float
• Writable: No
• Contents: L oil temp (C)

Dataref: simcoders/rep/engine/oil/temp_c_1
• Type: float
• Writable: No
• Contents: R oil temp (C)

Dataref: simcoders/rep/engine/oil/press_psi_0
• Type: float
• Writable: No
• Contents: L oil press (PSI)

Dataref: simcoders/rep/engine/oil/press_psi_1
• Type: float
• Writable: No
• Contents: R oil press (PSI)

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RESOURCES & HOW-TOs

SimCoders.com blog contains tons of resources that you will find very useful when using REP.
Moreover, this is a list of How-Tos available.
• How to lean the mixture
• How to keep the spark plugs clean
• How to choose the right oil for your engine
• How to quickly startup the engine with REP
• How to manage an emergency
• How to calculate the required fuel for your flight

SUPPORT & CONTACTS

Before asking for support please read the FAQs we published on our site. They contain informa-
tion about installation troubles and general usage.
If you encounter any kind of technical problem with our software, please write to support@
simcoders.com providing as much information as possible and including your X-Plane’s Log.txt
file.

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VERSION CHANGELOG
V4.8.9
1. Improvement: added SBAS receiver in XP12 No change for this aircraft

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LICENCE
End-User License Agreement for SimCoders.com Reality Expansion Pack

This End-User License Agreement (EULA) is a legal agreement between you (either an individual
or a single entity) and the mentioned author (SimCoders.com) of this Software for the software
product identified above, which includes computer software and may include associated media,
printed materials, and “online” or electronic documentation (“SOFTWARE PRODUCT”).
By installing, copying, or otherwise using the SOFTWARE PRODUCT, you agree to be bounded by
the terms of this EULA. If you do not agree to the terms of this EULA, do not install or use the
SOFTWARE PRODUCT.

SOFTWARE PRODUCT LICENSE

The Reality Expansion Pack is being distributed as payware licenced software for personal,
commercial use, non-profit organization, educational purpose. It may not be included with
CD-ROM/DVD-ROM distributions. You are NOT allowed to make a charge for distributing this
Software (either for profit or merely to recover your media and distribution costs) whether as a
stand-alone product, or as part of a compilation or anthology, nor to use it for supporting your
business or customers without the written permission of the author. It may not be distributed
freely on any website or through any other distribution mechanism.

1. GRANT OF LICENSE.
This EULA grants you the following rights: Installation and Use. You may install and use an
unlimited number of copies of the SOFTWARE PRODUCT.
Reproduction and Distribution. You may not reproduce and distribute an unlimited number of
copies of the SOFTWARE PRODUCT.

2. DESCRIPTION OF OTHER RIGHTS AND LIMITATIONS.

Limitations on Reverse Engineering, Decompilation, Disassembly and change (add,delete or
modify) the resources in the compiled the assembly. You may not reverse engineer, decompile,
or disassemble the SOFTWARE PRODUCT, except and only to the extent that such activity is
expressly permitted by applicable law notwithstanding this limitation.

Update and Maintenance

The Reality Expansion Pack minor upgrates are FREE of charge.

Separation of Components.
The SOFTWARE PRODUCT is licensed as a single product. Its component parts may not be
separated for use on more than one computer.

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Software Transfer.
You may permanently transfer all of your rights under this EULA, provided the recipient agrees to
the terms of this EULA.

Termination.
Without prejudice to any other rights, the Author of this Software may terminate this EULA if you
fail to comply with the terms and conditions of this EULA. In such event, you must destroy all
copies of the SOFTWARE PRODUCT and all of its component parts.

3. COPYRIGHT.
All title and copyrights in and to the SOFTWARE PRODUCT (including but not limited to any images,
photographs, clipart, libraries, and examples incorporated into the SOFTWARE PRODUCT), the
accompanying printed materials, and any copies of the SOFTWARE PRODUCT are owned by
the Author of this Software. The SOFTWARE PRODUCT is protected by copyright laws and
international treaty provisions. Therefore, you must treat the SOFTWARE PRODUCT like any other
copyrighted material. The licensed users or licensed company can use all functions, example,
templates, clipart, libraries and symbols in the SOFTWARE PRODUCT to create new diagrams
and distribute the diagrams.

LIMITED WARRANTY
NO WARRANTIES.
The Author of this Software expressly disclaims any warranty for the SOFTWARE PRODUCT.
The SOFTWARE PRODUCT and any related documentation is provided “as is” without warranty
of any kind, either express or implied, including, without limitation, the implied warranties or
merchantability, fitness for a particular purpose, or noninfringement. The entire risk arising out
of use or performance of the SOFTWARE PRODUCT remains with you.

NO LIABILITY FOR DAMAGES.

In no event shall the author of this Software be liable for any special, consequential, incidental
or indirect damages whatsoever (including, without limitation, damages for loss of business
profits, business interruption, loss of business information, or any other pecuniary or physical
loss) arising out of the use of or inability to use this product, even if the Author of this Software
is aware of the possibility of such damages and known defects.

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 Reality Expansion Pack
Piper PA-31 Navajo LibCURL EULA

LibCURL EULA
The following statements are applicable only to the LibCURL library used to provide some
features of this product.

COPYRIGHT AND PERMISSION NOTICE

Copyright (c) 1996 - 2018, Daniel Stenberg, daniel@haxx.se, and many contributors, see the
THANKS file.
All rights reserved.
Permission to use, copy, modify, and distribute this software for any purpose with or without fee
is hereby granted, provided that the above copyright notice and this permission notice appear in
all copies.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR
A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.
Except as contained in this notice, the name of a copyright holder shall not be used in advertising
or otherwise to promote the sale, use or other dealings in this Software without prior written
authorization of the copyright holder.

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