🔗 www.MrD-RC.com 🔗 / mrd_rc
About 2 years ago (June 2020) I released a video on how to set up iNav launch mode. This was back with iNav 2.4.1, and a few things have changed since then. This video brings things right up to date, and will be a good basis for iNav versions 3.0, 4.0, 4.1 and beyond (iNav 5.0 most certainly).
In this video, we look at all the parameters on the Advanced Tuning page. As well as the extremely useful idle throttle delay; which at the moment (iNav 4.1) is in the CLI. With each parameter, we'll look at what they do, and how you should tune them. Unfortunately, there is no "one solution fits all" for auto launch. Each model will need some parameters tuning to it; while other parameters are for your preference.
After discussing the parameters, we will look at the different methods for selecting the launch throttle. The first method shown is the same as the last video. It involves applying throttle until the plane goes weightless. I have also added how to convert the percentage in to the microsecond value used on the Advanced Tuning page. This method does involve a spinning prop. So if you're not comfortable with that. There is a tool on my web site to estimate the launch and idle throttles. So we take a look at that in the video too.
Next up, we go to the flight field and recap the launch procedure. Just to cover all bases. The procedure that will guarantee to work, no matter how you activate auto launch is:
1. Be in a non-navigation flight mode. This means Manual, Acro, Horizon, or Angle. If you have added Alt Hold to Angle, you can't use that mode.
2. Enabled launch mode (not needed if auto launch is permanently enabled).
3. Arm
4. Select the post-launch flight mode. I recommend position hold (loiter). This works better than RTH, as the plane stays in front of you in full view.
5. Raise the throttle to the post-launch level.
At this point, the plane is ready to launch.
- If you are not using idle throttle, throw the plane.
- If you are using idle throttle, the motor will start now. When it does, throw the plane.
- If you are using idle throttle with a delay. Wait for the motor to start, then throw the plane.
✈️ Contents ✈️
00:00 Introduction
00:47 Where to change the settings in iNav
01:35 The sequence for using auto launch
03:29 The settings on the Advanced Tuning page
03:30 - Idle throttle
04:37 - Max throw angle
05:54 - Threshold velocity
06:19 - Threshold acceleration
06:39 - Detect time
07:00 -- Why and how to change Threshold velocity and acceleration
09:20 - Motor delay
10:32 - Minimum launch time
11:58 - Motor spinup time
13:04 - Launch throttle
13:29 - Climb angle
14:28 - Launch timeout
15:24 - Maximum altitude
15:46 - End time transition
16:41 - Idle throttle delay
18:35 - How to set the idle and launch throttle
19:42 - Estimating the launch throttle using the plane under power
23:25 -- Convert the percent to microseconds
24:40 - Estimating the idle and launch throttle using the web site tool
30:56 Demo of the auto launch procedure
32:12 Launching the Dart 250G
32:33 Conclusion
Don’t step on your Tx folks 😉 • 88mph Drak Crash - FPV 🤬
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 ✈️
🔗 Auto launch throttle estimator tool: www.mrd-rc.com/tutorials-tool...
⚙️ ZOHD Dart 250G: bit.ly/MrD_3btvEkx
✈️ Help other RC pilots find this video ✈️
If you found the video useful, I'd appreciate a thumbs up. This will help RU-vid 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 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
🛩 Liking the video, subscribing, and clicking the bell icon can help greatly. This shows RU-vid 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 / mrd_rc
🛩 If you prefer, you could always buy me a Coffee at www.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!
20 июн 2024
