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Support/FAQ for RC-Soar templates

This page is for support of the RC-Soar templates. Please scan through the page before configuring your template.

Supported operating systems

The RC-Soar templates are compatible with OpenTX and EdgeTX:

EdgeTX

OpenTX

Current issues affecting the templates

Date Problem description
2025-12-17 EdgeTX hangs or stutters during startup, when using E-Soar Plus
2024-10-06 DLG templates sound 'telemetry connected' when pressing Launch button
2024-10-06 Custom sounds not playing in EdgeTX 2.10

Use matching versions of EdgeTX and Companion

When installing the templates, the versions of EdgeTX firmware and Companion should be the same. Otherwise, the setup may be corrupted (global variables and weights may not work correctly).

Use the latest templates, with ETX files included

The F3x and F5x templates have been updated for easier configuration:

Please use the latest versions for your next install!

Migrating your OpenTX model files to EdgeTX

EdgeTX 2.11 finally breaks ties with OpenTX. This has implications when migrating your OpenTX setups to EdgeTX 2.11 or above.

How to deal with conversion errors

The RC-Soar templates originally target the FrSky X9D. If you're using a profile other than the X9D, then Companion will convert the setup for the new target. If there are differences in the switch layout, then Companion will display conversion warnings, and these should be reviewed and fixed. I recommend different procedures depending on the operating system:

Note 1: errors related to differring switch layout are much easier to fix with the latest versions of the templates (any issues will be confined to the Inputs menu).

Note 2: Some warnings, for example RF configuration, are advisory and do not require any corrective action.

Loading a template to your transmitter

Below is the recommended method to load a template into your transmitter. It merges the template into the models already in the transmitter without disturbing gimbal calibration or radio settings:

  1. Start Companion and select the profile for your transmitter.
  2. Open the template file.
  3. You may now see a list of conversion errors, and/or the model will be marked in red. If so, see previous section on how to fix these issues.
  4. Connect your transmitter by USB and choose "read models and settings from radio". This will open a second window.
  5. Drag one or more models from the template window to the tx window.
  6. Close the template window (and optionally save the file). There should now be a single window open showing the modified model list.
  7. Choose 'write models and settings' to update the transmitter.
  8. Copy all model-specific sound files to the target's SD card.
  9. Disconnect the target transmitter.

Copy trims to subtrims - not!

EdgeTX and OpenTX both offer a Copy Trims to Subtrims feature. Please do not use this with any RC-Soar template or any setup which has multiple flight modes. Not only will it confuse your trims, it will also trash your CAL settings.

Using the RC-Soar templates with ELRS

ELRS modules transmit an 'arming' indicator to the receiver, and this must be managed appropriately in order for dynamic RF to work correctly. This applies even if the model has no motor or flight controller

In the past, the arming indicator was trasmitted via CH5 which had to be reserved for the purpose (by altering the channel order). Version 4.0 provides an additional 'switch' option which avoids the use of CH5. It is therefore strongly advised to use v4 or above!

Here's a summary of how to deal with ELRS arming:

ELRS v4.0

If using ELRS v4 with a fresh RC-Soar template, then use the 'Switch' arming method (Model Setup > RF). This way, no changes are needed to the channel order. You still need to assign an arming switch, but this is easily done in the Model Settings > RF menu - I recommend specifying the system 'ON' switch (= 'permanently armed').

For legacy setups which already reserve CH5, use the 'CH5' arming method.

ELRS v3.6 or below

If using ELRS v3.6 or below, you must reserve CH5 as an ELRS arming indicator.

ELRS configuration

The following configuration is recommended for sailplanes/electric. This provides 10-bit output on 8 channels with excellent range, while minimising current draw:

More ELRS tips

For a deep dive into ELRS, see my blog post Introduction to ELRS.

FAQ

This section has some tips and answers not covered in the list of issues:

Write Models and Settings is greyed out
Starting with EdgeTX 2.11, 'Write Models and Settings' is greyed out if the setup contains conversion errors. See above how to identify and fix these.
How do I re-order the servo channels?
Servo channels in your EdgeTX/OpenTX setup can be re-ordered using Channel Changer script. Also, if you're using an ELRS receiver, the channel order of the pins can be altered in the ELRS configuration script.
Alt sensor is not resetting
On the DLG and DLG6S templates, the ALT sensor is reset on launch via a 'Reset' special function. If the sensor fails to reset, go into the Telemetry menu, locate the ALT sensor and set AutoOffset to 'enabled'.
Motor control (CH7) is not working on G-RX8 receiver
Make sure that CH7 is configured for PWM output (and not S.BUS out). See receiver instructions.
Sounds not playing in EdgeTX
First, make sure that the sound (.wav) files are in the correct location. If that doesn't fix it, then go to the Special Functions menu, and make sure that Enabled is ticked on each line.
A switch is missing from the dropdown list
Sometimes, a switch which exists on the transmitter may be missing in the drop-down menus of the radio and/or Companion. To fix this, go to the System>Hardware menu. The chances are that the switch has not been defined. Once corrected, the switch should appear in the dropdown menus.
Where's the GVARs menu?!
There's no dedicated GVARS menu on tx's with small mono screens like Q X7, X-Lite, and X-Lite Pro. For these transmitters, the GVARS are set in the Flight Modes menu.
For all other transmitters, the most likely cause is incorrect settings when downloading the OpenTX firmware. Re-flash OpenTx ensuring that the NOGVARS option is unchecked in Companion Settings -> Build options.
My global functions have disappeared.
If you have some global functions defined but can't see them in your model setup, then go to the Model Setup menu and make sure that 'Global functions' is ticked.
I think I've pressed the wrong key - help!
If you suspect you made a data entry error, then there's no need to start again. In Companion, open a known working version of the template in a second window, and use Companion's 'Compare models' tool to identify any differences.

Historical issues

Date Problem description
2023-07-12 Crow aware trim script: runtime error in EdgeTX 2.9 and above
2021-10-26 Show It All widget: runtime error in EdgeTX [fixed in ShowItAll 0.9.8]
2020-10-31 Flaps do not move [F3F template V5.0.1]
2020-06-20 Unexpected behaviour in Companion simulator [OpenTX 2.3.8]
2019-10-12 Advanced snapflap script (snp401) fails after migrating to OpenTX 2.3
2018-05-10 Custom sounds no longer work after upgrading from OpenTx 2.1 to 2.2
2017-12-10 Servo centres shift after upgrading from OpenTx 2.1 to 2.2
2017-10-23 Cannot calibrate flap neutral [OpenTx 2.2.0, fixed in 2.2.1]
2017-12-05 GV's corrupted in Companion after conversion [OpenTx 2.2.1 RC1]
2017-04-07 Cannot reverse left flap CH4 [OpenTx 2.2 RC14/ N366]
2017-04-06 CAL and/or arming gesture not recognised [E-Soar and E-Soar Plus]
2017-02-17 Timer starts at startup [E-Soar Plus 2.0 & OTX 2.2]
2016-12-23 'Speed' callout not working [F3J/TD 3.0.0 & X9E]
2016-02-01 LS, RS not mapped correctly on X9E [X9E]
2015-10-03 Can't switch flight modes [OpenTx 2.1.2 - 2.1.4]
2014-11-05 Incorrect Inputs spec [F3F 3.0.0]

Queries/feedback

Comments and queries are always welcome, I can be contacted by email.

If you've found an issue with one of the templates, please include following info:

If there's insufficient info to reproduce the problem, I'll just pass it back, so please take the time to document the steps carefully.