Uploaded March 2021 | Updated September 2026, 3 weeks ago
Welcome to the third video in the tuning iNav explained series. This time, Marc shows us how to do an initial tune of our planes. Then he goes through how he fine tunes the plane. Afterwards, we look at the TPA settings, and how we can use those to get our tune working well throughout the entire throttle range.
If you have any questions, please feel free to leave them in the comments. We'll see if we can cover things in future video, especially if they may benefit a lot of people. Please head over to Marc's channel and subscribe. He has a lot of great, technical videos. His channel is primarily in German, but a lot of his videos also have English subtitles. youtube.com/c/b14ckyysTech
Contents
00:00 Introduction
00:51 How do we get an initial tune on the plane
03:25 Performing the Autotune and how to save the tune
08:28 Fine tuning the PIFF tune with in-flight adjustments
18:47 What's the TPA, and how do we use it?
22:13 Conclusion
INAV Fixed Wing Group: inavfixedwinggroup.com
IFWG Pro OpenTX model: inavfixedwinggroup.com/guides/opentx-model/inav-fixed-wing-group-pro-opentx-model
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.
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 on Facebook. Also, if you found my videos useful, and would like to leave me a little tip, you could always buy me a Coffee at mrd-rc.com/go/ko-fi
Thank you for your time, and don't forget to fly it like you stole it!
Welcome to the third video in the tuning iNav explained series. This time, Marc shows us how to do an initial tune of our planes. Then he goes through how he fine tunes the plane. Afterwards, we look at the TPA settings, and how we can use those to get our tune working well throughout the entire throttle range.
If you have any questions, please feel free to leave them in the comments. We'll see if we can cover things in future video, especially if they may benefit a lot of people. Please head over to Marc's channel and subscribe. He has a lot of great, technical videos. His channel is primarily in German, but a lot of his videos also have English subtitles. youtube.com/c/b14ckyysTech
Contents
00:00 Introduction
00:51 How do we get an initial tune on the plane
03:25 Performing the Autotune and how to save the tune
08:28 Fine tuning the PIFF tune with in-flight adjustments
18:47 What's the TPA, and how do we use it?
22:13 Conclusion
INAV Fixed Wing Group: inavfixedwinggroup.com
IFWG Pro OpenTX model: inavfixedwinggroup.com/guides/opentx-model/inav-fixed-wing-group-pro-opentx-model
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.
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 on Facebook. Also, if you found my videos useful, and would like to leave me a little tip, you could always buy me a Coffee at mrd-rc.com/go/ko-fi
Thank you for your time, and don't forget to fly it like you stole it!


![FrSky R9 RXSR Pilot Flight Controller
In this video we take a look at the FrSky R9 Pilot Flight Controller. This is a pretty interesting flight controller for a couple of reasons. Firstly, you can get it with either an R9MM or RXSR receiver on board. Secondly, this is currently the only F765 based flight controller that uses the pixel OSD. Would this flight controller suit your needs? Lets take a look.
[Update] The LED target variation mentioned in this video is now included with iNav 3.0.0 onwards.
Content
00:00 Introduction
00:40 What comes with the flight controller?
03:13 The PDB and layout
10:58 The flight controller board and layout
13:35 Checking it out in iNav
15:05 Binding the on board receiver
17:34 Final thoughts and other points
FrSky R9 Pilot: http://bit.ly/MrD_2P9x4Jw
Flight Controller comparison page: https://www.mrd-rc.com/tutorials-tools-and-testing/useful-tools/flight-controller-comparison/
LED Target for iNav 2.6: https://www.mrd-rc.com/tutorials-tools-and-testing/flight-controller-therapy/inav-flight-controller-target-variations-easy-great-options/
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. 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.
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 on Facebook. Also, if you found my videos useful, and would like to leave me a little tip, you could always buy me a Coffee at https://www.mrd-rc.com/go/ko-fi/
Thank you for your time, and dont forget to fly it like you stole it! FrSky R9 RXSR Pilot Flight Controller](https://i.ytimg.com/vi/lAJoQAX9ejo/mqdefault.jpg)


![First look at the FrSky Tandem X18 Transmitter
🔗 https://www.MrD-RC.com 🔗 https://www.patreon.com/MrD_RC
In this video we take a look at the new transmitter from FrSky. This is the TANDEM X18 Dual band transmitter. This radio is the Tandem successor to the legendary X9D. So how does it stack up? We will take a look at the new X18 and compare it to the X9D as well as the X20. Which is the right radio for you? Hopefully this video can help you make that decision.
[UPDATE] Since making this video, it has been brought to my attention that the gyro is not present on X18 transmitters. There is an X18S that has got the gyro, four times the internal memory, and th full CNC machined hall effect gimbals.
For full disclosure, this transmitter has been provided to me for review by FrSky. However, all the opinions and thoughts in the video are my own.
✈️ Contents ✈️
00:00 Introduction
00:08 The legacy of the Taranis X9D
02:02 What has happened since its release
03:08 Unboxing the X18
03:28 - The case and accessories
05:28 - Checking out the X18 and comparing to the X9D
10:23 - The gimbals
14:30 - Comparison to the X20
17:27 - The back of the radio and the connections
18:55 - The battery for the X18
19:19 Q & A from YouTube
19:48 - Water resistance of the transmitters
20:50 - Long term thoughts and what is dual band?
22:27 - Functional differences between the X18 and X20
23:58 A brief look at the radio on with ETHOS
27:12 The cost comparison for the Tandem X18
29:34 ETHOS vs OpenTX. What might you miss and whats better?
34:30 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 Ill 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 ✈️
🔗 ETHOS Simulator: https://github.com/FrSkyRC/ETHOS-Feedback-Community/releases/download/1.2.8/X20-Simulator.exe
⚙️ FrSky Tandem X18 Transmitter: https://bit.ly/MrD_3LD7R1j
⚙️ FrSky Tandem X20S Transmitter: https://bit.ly/MrD_3x6n6JL
⚙️ FrSky Taranis X9D Plus SE Transmitter: https://bit.ly/MrD_3a3yy1Z
✈️ 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. 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 channels discord server at https://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 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.
Thank you for your time, and dont forget to fly it like you stole it! First look at the FrSky Tandem X18 Transmitter](https://i.ytimg.com/vi/m7gGpWqNky8/mqdefault.jpg)




![Setting up and creating model images for OpenTX and ETHOS
🔗 https://www.patreon.com/MrD_RC 🔗 https://www.MrD-RC.com
In this video we go through the process of adding model images or icons to your transmitter. Not only do we look at where you can download these images from. But, we also look at how you can create your own personalised images. Why have someone elses plane, when you can have yours?
Having the images is one thing, but where do you put them? Ill show you how to get them on your OpenTX (EdgeTX) and ETHOS transmitters. This is a nice simple copy, so youll be up and running in no time.
There are a couple of rule to take note of. Firstly, stick to 10 characters or less for the image names. Files with longer names just wont appear in the image list. Also if youre creating your own images; remember the image sizes needed:
🖼 OpenTX (Colour LCD transmitters): 192 x 114 pixels
🖼 ETHOS: 300 x 280 pixels
🖼 ETHOS X18(S): 180 x 166 pixels
Youll find the links to the icons site and image editor below. Ive also had a comment from audiogek fpv, who says that the Paint3D application that comes with Windows 10 is also pretty good.
✈️ Contents ✈️
00:00 Introduction
00:39 Where can you download ready made model images from?
03:23 Creating your own model images
06:03 - Resizing the image for ETHOS
08:11 - Resizing the image for OpenTX
09:26 Copying the images to an OpenTX transmitter
12:17 Copying the images to an ETHOS transmitter
15:56 Conclusion
[NOTE] ETHOS pilots. If you update to version 1.2.x and your model images are no longer visible. You need to rename your model images folder from bitmaps/user to bitmaps/models. After that, they will come back.
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 Ill 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 ✈️
🔗 PIXLR image editor: https://pixlr.com/x/
🔗 Sky Raccoon icons: https://www.skyraccoon.com/icons
⚙️ FrSky Horus X10S Express transmitter: https://bit.ly/MrD_3l7b8K5
⚙️ FrSky Tandem X20S transmitter: https://bit.ly/MrD_3x6n6JL
✈️ 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. 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.
🛩 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 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.
Thank you for your time, and dont forget to fly it like you stole it! Setting up and creating model images for OpenTX and ETHOS](https://i.ytimg.com/vi/naSg_4CyJPs/mqdefault.jpg)