Uploaded April 2022 | Updated September 2026, 3 weeks ago
🔗 MrD-RC.com 🔗 patreon.com/MrD_RC
In this video, we finish off setting up our RC airplane. If you didn't see the first video, I would recommend watching that first. There we set up the transmitter model, bind the receiver, and get the receiver installed in the plane. youtu.be/Eq6JLaCkjP8
This time we are finishing off the control surface setup. We will set the throws, then add rates to get the recommended throws for the model. We will also add some expo to make the centre stick less twitchy. The ESC will be calibrated and the propeller direction checked. And we will make sure that the plane balances on the recommended CG.
✈️ Contents ✈️
00:00 Introduction and recap
00:56 Checking out some important details in our manual
02:25 - The Centre of Gravity, or CG. One of the most important things to get right
03:40 - Suggested control surface throws
05:46 How to adjust the throws, a very basic look at control linkage geometry
10:06 How to adjust the centre position of the control surface
10:41 Demonstrating how to set the throw, using the aileron as an example
12:00 Rulers can be used, but throw gauges can be easier
13:03 Demonstrating how to get the control surface centre correct
14:44 A little tip for clevises
15:45 Setting triple rates in ETHOS
19:24 Setting expo for our trainer
21:50 The setup of advanced multiple expo settings, for aerobatic planes
23:57 Calibrating the ESC
25:24 Checking the motor is spinning in the correct direction
27:30 How to reverse the motor if it is spinning the wrong way
28:24 Checking the CG is correct
30:01 Final checks and conclusion
Thank you for watching this video. Time is precious, so I hope that you got some benefit from this video. If you have any questions, please leave a comment and I'll do my best to answer. Please try to keep questions relevant to the video in, as they may also help others who have the same question.
✈️ In this video ✈️
⚙️ FrSky Tandem X20S transmitter: bit.ly/MrD_3x6n6JL
✈️ Help other RC pilots find this video ✈️
If you found the video useful, I'd appreciate a thumbs up. This will help YouTube share this video with other RC pilots who may find it helpful. If you would like to get more videos when they become available, please subscribe and click the notifications bell icon. If there are links above, they may be affiliate links. If you click them, it will help me and my channel at no additional cost to you.
✈️ Supporting me and other resources ✈️
🛩 There are more tutorials on my web site at https://www.MrD-RC.com.
🛩 You can also join like-minded people at the Fixed Wing RC Rebels group and INAV Fixed Wing Group on Facebook.
🛩 Join the channel's discord server at discord.gg/HMvrgZX6su
🛩 Liking the video, subscribing, and clicking the bell icon can help greatly. This shows YouTube that the video is helpful, so it will be shown to more people, who may have the problem dealt with here.
🛩 If you found my video useful, you can become a Patreon at patreon.com/MrD_RC
🛩 If you prefer, you could always buy me a Coffee at mrd-rc.com/go/ko-fi
🛩 I also have merch at mrd-rc.creator-spring.com This include branded items as well as general fixed wing RC apparel.
Thank you for your time, and don't forget to fly it like you stole it!
🔗 MrD-RC.com 🔗 patreon.com/MrD_RC
In this video, we finish off setting up our RC airplane. If you didn't see the first video, I would recommend watching that first. There we set up the transmitter model, bind the receiver, and get the receiver installed in the plane. youtu.be/Eq6JLaCkjP8
This time we are finishing off the control surface setup. We will set the throws, then add rates to get the recommended throws for the model. We will also add some expo to make the centre stick less twitchy. The ESC will be calibrated and the propeller direction checked. And we will make sure that the plane balances on the recommended CG.
✈️ Contents ✈️
00:00 Introduction and recap
00:56 Checking out some important details in our manual
02:25 - The Centre of Gravity, or CG. One of the most important things to get right
03:40 - Suggested control surface throws
05:46 How to adjust the throws, a very basic look at control linkage geometry
10:06 How to adjust the centre position of the control surface
10:41 Demonstrating how to set the throw, using the aileron as an example
12:00 Rulers can be used, but throw gauges can be easier
13:03 Demonstrating how to get the control surface centre correct
14:44 A little tip for clevises
15:45 Setting triple rates in ETHOS
19:24 Setting expo for our trainer
21:50 The setup of advanced multiple expo settings, for aerobatic planes
23:57 Calibrating the ESC
25:24 Checking the motor is spinning in the correct direction
27:30 How to reverse the motor if it is spinning the wrong way
28:24 Checking the CG is correct
30:01 Final checks and conclusion
Thank you for watching this video. Time is precious, so I hope that you got some benefit from this video. If you have any questions, please leave a comment and I'll do my best to answer. Please try to keep questions relevant to the video in, as they may also help others who have the same question.
✈️ In this video ✈️
⚙️ FrSky Tandem X20S transmitter: bit.ly/MrD_3x6n6JL
✈️ Help other RC pilots find this video ✈️
If you found the video useful, I'd appreciate a thumbs up. This will help YouTube share this video with other RC pilots who may find it helpful. If you would like to get more videos when they become available, please subscribe and click the notifications bell icon. If there are links above, they may be affiliate links. If you click them, it will help me and my channel at no additional cost to you.
✈️ Supporting me and other resources ✈️
🛩 There are more tutorials on my web site at https://www.MrD-RC.com.
🛩 You can also join like-minded people at the Fixed Wing RC Rebels group and INAV Fixed Wing Group on Facebook.
🛩 Join the channel's discord server at discord.gg/HMvrgZX6su
🛩 Liking the video, subscribing, and clicking the bell icon can help greatly. This shows YouTube that the video is helpful, so it will be shown to more people, who may have the problem dealt with here.
🛩 If you found my video useful, you can become a Patreon at patreon.com/MrD_RC
🛩 If you prefer, you could always buy me a Coffee at mrd-rc.com/go/ko-fi
🛩 I also have merch at mrd-rc.creator-spring.com This include branded items as well as general fixed wing RC apparel.
Thank you for your time, and don't forget to fly it like you stole it!


![Updating the ETHOS firmware
[NOTE] There is a more recent video on how to update ETHOS here: https://youtu.be/5Y351hjF5ZA
In this first video of the Exploring ETHOS series, we look at how to update the firmware on your FrSky Tandem transmitter. This is a fairly simple process, if a little on the manual side. But theres nothing really too daunting. Maybe in the future well see a simpler process using a desktop companion. But until then, this is the update process.
If you struggle with computers, I’ve recorded a longer, more in-depth video that may help you with this process. Please feel free to watch that video here https://youtu.be/1RfEdgRIwcQ
** Update **
The naming of the SD card and FLASH drive contents is changing. From version 1.0.11 onwards, if you are using a Tandem transmitter (currently X20 and X20S) you should download the TANDEM_FLASH and TANDEM_SD files.
Between 1.0.6 and 1.0.10 they had been named X20_SD and X20_FLASH, which caused confusion. People thought it was just for that transmitter, and not for the X20S also.
** In this video **
- ETHOS GitHub Releases https://github.com/FrSkyRC/ETHOS-Feedback-Community/releases
- FrSky Tandem X20S https://bit.ly/MrD_3x6n6JL
** Contents **
00:00 Introduction
00:42 Checking the current firmware version
01:40 Getting the transmitter in to bootloader mode
02:13 Downloading the new firmware
04:11 Plugging in the transmitter and finding the USB drives
04:59 Updating the Flash memory
05:26 Updating the Micro SD Card
05:50 Performing the actual ETHOS firmware update
06:53 Conclusion
** Help other RC pilots find this video **
If you found the video useful, Id appreciate a thumbs up. This will help YouTube share this video with other RC pilots who may find it helpful. If you would like to get more videos when they become available, please subscribe and click the notifications bell icon.
** Supporting me and other resources **
- There are more tutorials on my web site at https://www.MrD-RC.com.
- You can also join like-minded people at the Fixed Wing RC Rebels group and INAV Fixed Wing Group on Facebook.
- If you found my video useful, you can become a Patreon at https://www.patreon.com/MrD_RC
- If you prefer, you could always buy me a Coffee at https://www.mrd-rc.com/go/ko-fi/
- I also have merch at https://mrd-rc.creator-spring.com/ This include branded items as well as general fixed wing RC apparel.
- If there are links above, they may be affiliate links. If you click them, it will help me and my channel at no additional cost to you.
Thank you for your time, and dont forget to fly it like you stole it! Updating the ETHOS firmware](https://i.ytimg.com/vi/XkVOgo5UUt4/mqdefault.jpg)







