Setting up auto launch, or launch mode, in iNav

[@mikesousa5298]

I was hesitant to watch this video due to the length but am glad I finally did. 100% confident that my maiden with auto launch will go smoothly now! Thank you sir!

[@MrD]

I hope it all goes well. Unfortunately, some videos have to be long. I could have made it shorter and cut out information, maybe even give some basic settings. But I’d rather have the longer video which allows pilots to get the best settings for them and their aircraft.

[@Slash7FPV]

Idle throttle is also very helpful for folding props. Just as addition if not mentioned already. Great video again, Darren!

[@MrD]

Thanks Jan 👍🏻

[@upperechelon3456]

Mr. D. This is undoubtedly one of the best INAV launch videos out there. Excellent work.

[@MrD]

Thank you. I’m glad the video has been helpful 👍🏻

[@Crunklefloop]

Brilliant Video mate - Autolaunch is one of the greatest things about INAV - it's so much better and with so much more control than the other systems I've used.

[@MrD]

It it a cool feature. It's well worth tuning it to get perfect launches every time. And I totally agree with what you said about the idle timer. That is a priceless feature. I use it on everything now, even if it doesn't really need it. I just means I can take my time with the launch.

[@tubermick]

just maidened my AR PRO in manual first ,no probs, then set it up in autolaunch for the first attempt, flew like a champ using your estimator tool .thanks mate was expecting to be miserable , but just the opposite 😁

[@MrD]

That’s great Mick. Glad to hear that. I’ll be building an AR Pro very soon too. Glad to hear you have all successful launches.

[@PistiBala]

LOL: "Holding a Dart 250g up with a spinning propeller is yeah it's just just it's as scary as drinking a diet Coke..." Made my day :)

[@birdmantelly007]

That is sooooo useful. I am a newbie and my confidence has just soared. Congrats !!!

[@53roger]

Mr. D...another great video. I have programmed an auto launch on my radio very similar to this (i dont have a FC). I have gone over it numerous times and am pretty sure it will work as well as I expect. I hope to give it a test in the morning. I also wanted to say thank you for your contributions to RC. I know that you have spent untold hours doing videos, writing articles, testing logical setup etc. I appreciate you. Thanks

[@MrD]

Thanks Rog. I hope the launch goes well 👍🏻

[@53roger]

@@MrD Finally had time to 'kill 3 birds with one stone'. After letting it sit in my shop for 1+ year, i put my Nano Talon together for a maiden. I the maiden using my own auto launch set up on my Frsky 9D+ (no FC used for that), hand launched in stabilized mode of KoPilot (yes i know it has auto launch but mine is better 😁) and had a perfect landing 5 ft from me. A great day to be an RC pilot. Maidened my Nano Talon, my KoPilot and my personal auto launch all in the same flight.

[@MrD]

Awesome. Glad you enjoyed your flight. It must have been nice to get it in the air.

[@SILVIOFRANCO1]

Thanks, Darren. I reviewed some settings after watching this tutorial. Great

[@MrD]

Thanks Silvio 👍🏻

[@chipsterflysome]

Great video. I looked all over the place to find out the information you put in the end of the video (the five steps). Now i know how to initiate auto launch at the field and also what to expect. Nice job.

[@MrD]

Glad I could help 👍🏻

[@tubeaudioslave]

I launch my wings with 20% climb angel, cruise mode on. Auto launch will cancel after 20 seconds as pre my settings and cruise takes over automatically. If I hit the sticks and cancel it with cruise on it will take over on cruise mode. As long as the throttle stick is at least in the auto throttle area for power on.

[@MrD]

Yes, there are many options, depending on what your flight plan is after launching.

[@M-H433]

Great to see you outside with your videos,thanks again for a great tutorial.

[@MrD]

Thanks Mark. It’s great to be back outside and flying. I’ve flown loads over the last few weeks and it’s been amazing. Hope that everything is good with you and you’ve been out flying too.

[@M-H433]

@@MrD Been busy with my new build,got a few issues with my dragonlink system and F765 set up.

[@MrD]

Cool, what are you building? I hope the issues get ironed out soon.

[@M-H433]

@@MrD Another Ranger 2400,my gps on UART 3 giving problem with working,was giving numbers 99.999 in gps tab in inav and wiring was ok,I checked on ublox program,I ended up refreshing 4.1 again and problem gone..? Could it have been a corrupt install from 3.1,I didn't copy diff I did a new set-up.

[@MrD]

Possibly. Sometimes bad flashes can happen. Hopefully it will all be working soon. Have you had the Ranger 2000? If so, how do they compare to the 2400? I have a 2000.

[@dronzofheidelberg9449]

Thank you so much , it helps to change from Quad to Wing very much to understand

[@MrD]

Glad I could help. Welcome to fixed wing.

[@dorelcodrutpatrasca2993]

Great video, I'm using the auto-launch on every wing/plane take off, the idle setup is great feedback that everything is in place for throwing the plane, I didn't know what each parameter does, but now I do. Thank you.

[@MrD]

You're welcome Dorel. I'm glad the video helped out with those other parameters.

[@Chilternflyer]

I wish I'd watched this before trying autolaunch. My nano talon took quite a beating yesterday (twice).

[@MrD]

Hopefully next time is more successful. I’m not 100% certain with the Nano Talon. But I know the other Talons like a pretty flat launch to get airspeed up before climbing. Hope that helps too.

[@ODGuitars]

What an amazing website, thanks for doing that :) great videos

[@MrD]

Thanks. Hopefully it’s useful 👍🏻

[@ODGuitars]

@MrD it is, I'm just not sure how to set a switch to arm the auto launch, do you have a video on that?

[@MrZeek101]

Another great video Mr D you took all the hard work out of doing it thanks and take care

[@MrD]

Thanks Robert.

[@lleston8927]

Nice tutorial Darren!

[@MrD]

Glad it was helpful 👍🏻

[@terrymurphy562]

Excellent tutorial Darren.

[@MrD]

Thanks Terry 👍🏻

[@terrymurphy562]

@@MrD it’s nice that you take the time to explain it in layman’s terms and thoroughly. Really appreciated. 👍

[@beubeurk]

Just discovered your channel! Very very well made and informative!!! thanks a lot for all your videos!!!

[@MrD]

Thank you. I hope the videos help 🙂

[@cobra4829]

perfect video, perfect explanation, and perfect demonstration, now I know 👍 Thank You

[@MrD]

Thank you. I’m glad the video explains everything well. That’s always the hope, but great when your hear it.

[@garyjohn1076]

Thar was super helpfull. Its my Maiden of flying for the first time! I've made a homemade plane... I'm terrified! I've subbed 👍

[@MrD]

I'm glad it was helpful Gary. I hope you have a successful maiden and some great flights.

[@garyjohn1076]

@MrD thanks for replying. Sadly though for some reason i couldn't arm. I thought it might of been the lack of satellites. But I changed it to have no gps at all to just use flight modes. I was so excited! But sadly it still didn't Arm. All worked at home before I tested. I think It was because I left the fail safe as RTH. I gave up after a frustrating day! Will look again tomorrow! Any ideas why it wouldnt Arm? Even after I disabled GPS?

[@MrD]

Make sure you have system messages on the OSD. If it can’t arm, it will tell you why there. Most common are that you are in a navigation mode or that the throttle isn’t low. You should have failsafe as RTH.

[@lasersbee]

Excellent detailed and explained turorial... Thanks

[@MrD]

Thank you. I'm glad it was helpful.

[@henrirotthier5710]

Excellent video. So informative 👍

[@MrD]

Thank you Henri.

[@Ard1400]

Thanks for this great video. It helps me a lot!!

[@MrD]

You’re welcome Ard. I’m glad it helped 👍🏻

[@Fpvaddicts]

Exactly the right video, as always perfectly and simply explained! Thank you🤗

[@MrD]

Thank you for the awesome feedback. It’s always great to head a video helps people 🙂

[@devilsreject78]

very good well explained info.... so much better than painless, thanks i understand it all now

[@MrD]

Thank you. I’m glad the video was helpful.

[@antlerhanger]

How do I automatically go into loiter when it comes out of auto launch ? Fantastic video by the way !!!!!

[@MrD]

Just use the sequence shown in this video. That is exactly what I do when I show launching the plane.

[@ZuNunchaku]

great and details. I have a question, can I use logic in configuration or something that can always enable loiter mode in exit without using sequence? in sort : it wont detect stick input and always exit in loiter until I change the flight mode

[@MrD]

You could. But I don't know if I would to be honest. If you're worried about stick movements during the initial launch phase, there is a parameter to ignore stick inputs for a set time. 2 seconds is usually ample. Just set loiter as the mode after arming, but before raising the throttle, and it will loiter once it exits the launch.

[@fiferox]

The video I needed to understand really what the settings mean't. And in Inav 7 there is less settings. Hello from France.

[@MrD]

I’m glad the video helped 👍🏻

[@TheFpc20]

So cool, i'm finishing the build of a reptile swallow s670, it is my first wing, i will be doing maiden flight next sunday and it got me really scared especially by launching, would you recommend set auto launch for maiden or simply throw it like normally, by using 70% throttle

[@Stemplar42]

Hi. Good video, but in INAV 6.0 is different the screen of configuration. Have you got one new video for INAV 6.0?

[@MrD]

I don’t, because it is still basically the same. A couple of options were removed (defaults should be fine for those in most cases) and the idle delay was added to the UI from CLI to make things easier. I did talk about the idle delay in the video. Now it’s just on the page, so it’s easier to set.

[@Bigtbuilder]

Very useful video. Currently I am having issues with an AtomRc Dolphin torque roll on auto launch. No matter what mode I select iNav cannot catch it in time to prevent a roll into ground. Any suggestions welcome. Throttle set to 70%

[@MrD]

Are you 100% sure it’s torque roll. If you’re using the stock setup, it seems unlikely. The Dolphin is pretty easy to add unwanted movement on the throw. So it’s worth checking that. When you say no matter which mode you select. Are you using autolaunch? If so, the mode you select only activates once the launch is complete. During autolaunch, it will always use manual. Have you autotuned the Dolphin yet? If so, was it in acro with prolonged full stick defections with pauses? If you’ve not yet autotuned. Angle may not have enough authority to correct the unwanted angles in the launch. To help with initial launches. You can set the throw in acro mode to be around 80% of the throw in manual mode by adjusting the FF. There are quite a few different things that could cause issues on launch. If you can. Maybe raise the problem with DVR video and/or external video of the launch. Yo could do this on the INAV Fixed Wing Group Facebook group or Discord served. Links can be found on INAVFixedWingGroup.com.

[@Bigtbuilder]

@@MrD thank you for the detailed reply, most helpful. Launching in manual mode with full beans definitely resulted in a full left roll. I had auto tuned in Acro but might not have waited long enough between slick movements. I solved the issue by auto launching in Horizon Mode, changing from no motor spin on arming to 15% throttle, not to high so if I do catch a finger it’s not brutal, and reducing max launch throttle following your KZbin method. It definitely launches better when there is a head wind, not so good in a dead calm.

[@SzymonSays1]

Epic content. Answered all my questions!

[@MrD]

Awesome. I'm glad the video helps.

[@SzymonSays1]

@@MrD Funny thing is.... I went for my maiden today.... and even after lowering the timings the AL kicked in when the wing was already stalling after the throw (Double hand over head) :( Wing Gods = 1 Me = 0

[@MrD]

@@SzymonSays1 maybe try increasing the idle throttle and gradually reduce the motor startup time. To be honest, I’ve never been a fan of over the head throws. They’re a bit sketchy for me. But I’m sure it’s just a case of getting your settings fine tuned.

[@SzymonSays1]

@@MrD Appreciate the response! I'll definitely be fine tuning when she is all back together!

[@copyandpastification]

I know we are talking about auto lunch...but is there any video that explains how auto land decides where to land respectively to the home position?

[@MrD]

There are 3 automatic landings. 1. Emergency landing. This will just land immediately. You don’t get a say in how it lands. 2. Land after RTH or FS. This loiters down at the home (or safehome) point until it almost reaches the ground. At which point it will level off and land. The only control you have here is where the home/safehome position is. Everything else is automated. Including the level flight vector. 3 Fixed wing autoland. This is a new feature in INAV. You set a landing strip on a safehome, safe approach direction, approach distances and altitudes. It does the rest. If fixed wing autoland can be used. It will use that instead of option 2. Full information can be found at github.com/iNavFlight/inav/blob/master/docs/Fixed%20Wing%20Landing.md

[@copyandpastification]

@@MrD thank you Buddy

[@derrickmitchell8590]

Do you think you could do a video of your 250G? I see you have some mods done on yours. Specifically the items in the wings, and the extension on the back. What are they, and do they help? Your videos are always so helpful. Thanks!

[@MrD]

Unfortunately not because it is at the bottom of the sea after the F411-WSE failed. The only real modification was the tail extension. I did this as I was always planning to run 3S. That mount moves the motor back, as well as tapering the back end. www.thingiverse.com/thing:4885030 The only other mod was thin carbon rods between the fuselage and vertical stabilisers, to give them mores stiffness. Everything else was pretty much a standard build. The VTx and antenna were sunk in to the wing. The Crossfire nano was at the rear of the wing, with the VAS Xfire Pro antenna sunk in to the vertical stabiliser. I like to try and keep builds clean, on the outside at least.

[@obrujito1]

Gran video, muchas gracias por tu colaboración .

[@MrD]

De nada. Gracias por el apoyo.

[@chrissofpv3017]

Super helpful Darren...apologies,but a question,I'm baffled.... How does INAV Autolaunch know what switch to prioritise - for the autolaunch,....when you've selected 2 switches: Manual (NON Nav mode) AND Position Hold (NAV Mode)aka Loiter,..before raising the throttle and chucking?....🤔🤔🤔 Me?...I'd just use Acro for autolaunch AND exiting it too. S.M.A.C. still looks a good place to fly even in the dystopian R.I.D. future!

[@MrD]

Autolaunch will always be based on Angle. You can only choose the exit mode. As for the mode it will use. INAV has a priority order. From what I remember, manual will take priority over loiter. The best way to combat this is to not give INAV the choice. You can have all your modes sent over a single channel. Meaning the mode you select, is the mode that will be used.

[@chrissofpv3017]

Many thanks Darren for clarifying..much appreciated 👍

[@FlyingDiode]

Hi Darren,is it possible add a parameter in autolaunch tabb wich will be sett the delay right after throw and before climbing so that plane wil pickup the speed in level flight and after that start climbing? Thank you!

[@MrD]

That’s certainly something that could be requested on the INAV GitHub. It shouldn’t be too tricky to implement either.

[@travelrideandfly8355]

Hi! What is the benefit of limiting the autolaunch throttle and not just set it up at max (2000) directly ? 🤔

[@MrD]

There are a couple of reasons that come to mind. Firstly, using the right amount of throttle, rather than full throttle gives a more efficient launch. So you will not burn more battery than needed. The other reason is that full throttle may introduce torque roll, which is not wanted.

[@gmascagni]

Thanks for the very detailed explanation. What is the equivalent of Loiter in iNav 5. Is it position Hold? Do I set that when I auto launch? Does this give me enough time to walk back to my chair and put my goggles on? That's where I'm struggling right now. I can launch just fine and plane starts to fly out but I feel like I dont have enough time to run back to my chair and put my goggles on.

[@MrD]

No problem Georgio. Yes, loiter is position hold 👍🏻

[@gmascagni]

@@MrD I'll give Position Hold a go. Thanks so much and perfect timing getting ready to head out to the field with my Nano SkyHunter. :-)

[@MrD]

Have fun 👍🏻

[@johnchurch2321]

Good afternoon! Loving the content! Hey do you know what happens if you accidentally flip the auto launch switch on the radio mid flight?

[@MrD]

Thanks John. It won’t do anything. You’re already armed and flying. Even if it did do something, you would only need to wiggle the pitch/roll stick to exit the launch procedure.

[@johnchurch2321]

@@MrD thanks bro!

[@joslinnick]

In the current version of iNAV 7.1.2, there is no Threshold Velocity figure. Did they do away with this feature in more recent versions?

[@MrD]

Yes, it had been gone for a couple of versions now. In most cases the default is fine. It can be accessed from CLI if needed. For example you have a big, heavy aircraft.

[@joslinnick]

@@MrD Okay. Can I put select RTH as an exit flight mode, or will that not work since it has to be in a non-navigation mode for NavLaunch to work?

[@mathieusan]

It seems these auto-launch parameters would be almost directly linked to the mass of the plane. Could we create few tabulated recommended value (or range) by aircraft masses?

[@MrD]

Hey Mat. Unfortunately not. The mass is a part of it. But the propulsion system also makes a big difference, as well as how the pilot throws the plane. Once you get used to doing this, it really doesn’t take long. I will do the trigger test to get the velocity and acceleration right for that plane and throwing technique. Then use the estimator tool for the throttle levels. The rest of it is pretty much personal preference or specific to the model.

[@ndcapper]

Great video

[@MrD]

Thank you 👍🏻

[@family10007]

Hello Mr. D Excuse me, at 31 minutes and 30 seconds of the video, the fourth launch step selects exit flight mode, can I choose RTH?

[@MrD]

You can choose RTH. But in all honesty poshold works better. This keeps the model in front of you, rather than flying it over your head.

[@cpasjojo3551]

Very Very good vidéo. Thank you :)

[@pukki34]

Great vid. Thanks

[@MrD]

You’re welcome

[@vovsen123]

now with version 6 some of the variables is not in the Launch settings and some has been added like Idle Throttle Delay. is the missing removed or just mowed?anyway as always a great video.

[@MrD]

Some parameters have been removed. They are still in the CLI. But defaults should be fine.

[@DidiWebster-n9b]

Hi Darren, I have INAV 7.1 installed on my Sky Hawk. I have transferred the diff all data from 6.1. Now I have a problem with auto launch. What do I have to change in 7.1? The setting options have changed a lot. Many thanks for your great videos and greetings from Switzerland. Didi

[@MrD]

INAV 7.1 isn't out for about a month (probably release candidate some time next week). As far as I know. Nothing has changed in the launch between 6.1 and 7.1. What is the problem? It may be worth asking in INAV Fixed Wing Group. As DVR or external video would be able to be posted there.

[@DidiWebster-n9b]

Hello and thank you very much for your information. Greetings Didi

[@Chris-vc1dh]

hi You said not to have any nav mode on but when ? is it when doing the settings or before the launch? thank you

[@MrD]

Before you arm, make sure you are not in a navigation mode. Once you have armed, you can select the navigation mode. Check out the demo near the end of the video.

[@Jokerman518]

May I ask how you set auto launch on a switch? Thanks for your indepth content Mr. D

[@MrD]

Yes, I have mine on a switch. Just set up a switch and set it to the NAV LAUNCH mode on the modes page. If it’s not called NAV LAUNCH, it will be something similar. It will only appear in the list if “Permanently enable launch mode” on the configuration page is disabled. I’m glad the videos help.

[@Jokerman518]

@@MrD Thanks so much for the fast reply! I will check it out and can't wait to see your videos about Inav 5

[@MateoMnc]

great video 👍 do you think you could make a tutorial for the aterisation with inav?

[@MrD]

Thanks Mateo. Sorry, I don't know what you mean by aterisation?

[@MateoMnc]

@@MrD sorry i made a spelling mistake i meant landing

[@MrD]

Honestly, I don't use it. I have RTH set to land on failsafe only, as it is more a controlled crash. The plane will loiter down until it thinks it's a few metres above the ground, then it cuts power and glides the rest. It uses the loiter circle to come down, so you need a large, flat area. I would not use this to land the plane, unless I had an emergency with no RF link. Flying the plane down is much better.

[@MateoMnc]

@@MrD ok thank you very much for your answer 👍

[@hobie278]

Darren i got my T1 Ranger to auto launch but how do i setup loiter? I’m using the speedy bee FC and i have INAV 7.0 firmware. Could you please do a video on how to set it up. I’m new to this so if you can explain it so i can do it would be great. Thanks Art

[@MrD]

I can make a video on this. Before then, there’s not really a lot to set up. On the Advanced Tuning page there are 2 settings. Loiter direction and loiter radius. Loiter direction is the way the aircraft will bank to make the loiter. The default is right. But you can select left or yaw. I personally use yaw, as it defaults to a right hand loiter. But allows you to change the direction with the rudder stick. Loiter radius is just how big the circle in the sky will be. I believe the default is 75 metres (150 metre circle). Which will be fine for your T1.

[@hobie278]

Great thank you

[@hobie278]

Darren i went out today and tried to get my plane to loiter but no luck. I did notice you flipped a switch for loiter do i need to setup a switch for this? I’m using Frsky X20s TX and RX. My loiter radius is 3200 cm and loiter direction is Right. Thanks again

[@micsherwood4930]

How is the launch throttle value calculated for a 50mm EDF?

[@andron1967]

Спасибо Даренн за полезную информацию

[@MrD]

You’re welcome

[@kewlar2]

Hello. Can I do an auto launch with a model that will fly for the first time or do I have to trim it earlier

[@MrD]

If you are 100% confident that everything is set up correctly. You can use autolaunch on the maiden. Personally, I prefer to control the plane, and have someone else throw it.

[@kazimierzwirpszo6050]

thanks for your video. I have a problem. In my case , after engine arm and pushing the throttle engine not go to idle but to actual value of throttle. I cannot solve this problem. Thanks for help.

[@MrD]

This sounds like autolaunch is not being activated before arming. Make sure you have system messages in your OSD and that autolaunch is displayed.

[@kazimierzwirpszo6050]

@@MrD You are right. First thanks for your videos, thanks for all you have done ! Congratulations !!! Reason was that my transmitter wasn't correctly configurated (throttle channel). Now , the engine in autolaunch mode start to idle after a given time. But after, cannot not (shake methode) I the controller don't continue. This means, even (I see accelometers works correctly (sensor tab) controller don't stops and don't go father. It is like accelometer isn't connected.. Do you have any idea what can be a reason?

[@kotelnikov-blog]

What are the downsides to just set maximum (or almost maximum) throttle for auto launch?

[@MrD]

Wasted energy. Potential for torque roll.

[@kevalinopicks5555]

Darren - Idle Throttle Delay seems to have been added since your video - what do you suggest for this? Cheers.

[@MrD]

I’m sure I talk about it in the video. At that point it was in the CLI only. I usually go with 5 seconds. But it depends on the size of the plane and how long it takes you to get setup before you’re ready for the idle throttle to kick in. If you don’t use idle throttle, or don’t want a delay for it. Just leave it at zero.

[@kevalinopicks5555]

@@MrD Of course you're right! Didn't put 2+2 together!

[@afterburnerrc6333]

Hey Mr. D, awesome video! I just successfully auto-launched my ZOHD250 yesterday and wow is that awesome. I have cringed in the past trying to hand launch models, this is soooo much easier. Question, I have not autotuned yet as I am just feeling the model out first and only flew in Horizon mode which went great. I would like to set it up to loiter so that when I auto-launch it will automatically loiter until I am ready to tune. I assume the MODE I need to set is NAV POSHOLD and put it on a switch. Right now I have Horizon, Manual & Acro on a single three-position switch. Do I need to replace one of these modes with NAV POSHOLD? Thanks again and I appreciate any help.

[@MrD]

Firstly. Don’t use any of the navigation modes until you’ve done the autotune. On default rates and FF it will be very sluggish. To be honest, it will be sluggish in Horizon too. You need to do the autotune in acro. I currently don’t have a video on tuning. But Marc Hoffmann has an excellent video which takes your through the process kzbin.info/www/bejne/jJmsi2R8Zrp2e7c When it comes to the modes. POSHOLD is loiter. You may have seen videos that say need to also have ALTHOLD in the same position. This hasn’t been the case for a while. You only need POSHOLD. I have all my modes on one RC channel. But your can spread them across multiple switches. 3 positions isn’t really enough for modes. My setup has a 3 way switch and a 6-way switch. I combine these to have 8 flight modes. But similar things can also be done with two or three 3-way switches. I show my setup here. But if you need more information, just let me know. www.mrd-rc.com/tutorials-tools-and-testing/opentx-tutorials/my-transmitter-setup-a-simple-guide-to-a-great-model/

[@roddysallie8098]

👍 that’s a great video

[@MrD]

Thank you Roddy 👍

[@bkpickell]

Thank you for this. I used your "estimator" on your website and found out my motor is severely underpowered (1050kv motor and 998 g model), and would have certainly crashed. So it looks like I'm motor shopping. I do have some 22000kv quad motors laying around. Are there any disadvantages to putting a quad motor on a wing?

[@MrD]

What plane is this for? With the motors, its the stator size, not just the KV that’s important.

[@bkpickell]

@@MrD yeah, I figured that out while shopping last night. Plane is an Eclipson EWW180. Yes it has a 69" wingspan. The motor I settled on is a 2830 1400 kv 385 watt 7x6 propeller. Motor specs stated with that propit would get 1180 thrust.

[@MrD]

That motor sounds pretty big, compared to the motor recommended in their kit. They use the SunnySky X2212 1250KV on 3S. The weight is similar to my S800, where I use a 2508 1200KV motor on 4S, and have loads of power. My AR Wing is also similar. On that I use a SunnySky X2216 III at 1250KV, also on 4S and with loads of power.

[@bkpickell]

@@MrD yeah that's a headscratcher. There is no way that motor works. The depth for the cavity the motor sits in is 30mm deep. You can't get a prop on a 2212. I know, I tried. Also, my 1050 kv motor is a flite test power pack b motor, which they also reccomend. It mounted perfectly on the back, it is a 2235 motor. I had a 6x4.5 prop on it and I felt no thrust at full throttle.

[@MrD]

I just checked out the FliteTest power pack B. It says it’s a 2212 1050KV motor, and should have a 9x4.5 prop. I guess that would be for 3S with that size prop. 4S would be around an 8x4.5. Either way, 6x4.5 would be too small, so not surprised there wasn’t much thrust. The other thing with motors is that there are two sizing methods. Quad motors and fixed wing motors like those SunnySky X2212 motors use the stator size, not the case size. Whereas traditional fixed wing motors use the size of the bell. So the SunnySky X2212 motor would be around a 2826 in traditional measurements. The X2216 would be a 2836. That 2830 motor you have said, if in traditional sizing, could be around a 2212 stator. Given the low watts, I’d imagine that’s the case. This just confuses things further. If only all manufacturers just used stator size, it would make things so much easier.

[@egtreadway4232]

Another great video Thanks, I've been using autolaunch on my ar wing pro for over a year now without crashing but have had alot of close calls, this wing always goes hard left or right not straight, my c1 chaser launches straight almost always. I'm using 1400 idle throttle and 1900 launch throttle on both wings, is this just normal behavior of the ar wing pro or maybe needs different launch settings I have to say this wing is very disappointing so far. Do you have any idea what's going on with this wing or is it just not setup properly. Thanks again

[@MrD]

To be honest, a lot of people seem to have trouble launching the AR.Wing Pro, and I really don't understand why. I had the chance to fly one a week or so ago, and there were no problems on the autolaunch at all. I don't know 100% what the launch throttle is on. But, I think it will be 1700 (the default setting). Manually my friend launches it with 3/4 throttle in horizon, with a wing toss. It goes up without a care in the world. When you say going hard left or right, do you mean it rolls that way to change direction, or it drops a wing? As for flying it. To be honest, I wasn't overly bothered. It flew fine. But it was nothing special, just average. I prefer my original AR.Wing. I also maidened his AtomRC Dolphin that day too, and it was a much better thing to fly.

[@egtreadway4232]

@@MrD Thanks Darren, when I throw this wing it banks hard right usually but sometimes hard left, so which ever way it banks that wing is tipped down but then I guess its inav that gets it back to level but it's now going in much different direction in which it started out because of the hard banking, other than launch its flying good in all modes,I have many miles on this wing but may have to retire this one and maybe try the original ar wing 900. Thanks for all your help.

[@MrD]

I’m just trying to work out if it’s changing direction due to not having a heading or if it’s tip stalling because there’s not enough air speed. Do you wing toss or overhead launch?

[@egtreadway4232]

@@MrD l just grip the fuselage and point it towards the horizon and give it a push, autolaunch always engages and it climbs like it should but never even close to straight, I tried a 8060 propeller vs the 8050 but if anything that made the situation worse but it definitely has more power. Maybe I'm throwing it to hard or not hard enough I'm lost at this point. The hardest wing I've ever launched.

[@MrD]

@@egtreadway4232 i’ll see if I can get a video next time for comparison.

[@pilotmiami1]

thenks

[@MrD]

You're welcome.

[@pilotmiami1]

my system glider phoenix 2.0m.,matek 411 wse,run cum,transmiter and receiver flysky.eleron connect to use u connector.all system is working now.stabization working.l have free Chanel 5 in matek.how to connect and set up flaps in Inav 4.0 or on this system semply.Thenks

[@peterhancox5268]

I would love to use Auto Launch, but it has never worked for me through out all the various versions. Now on version 6.1 so thought I would give it another go, Z84 Wing flies perfectly in all flight and navigation modes, does missions etc without issue, but it doesn't matter if I mode switch to AutoLaunch or permanently enable it, I can never ARM, so there is something missing here??

[@MrD]

If you check the system messages in the OSD. It should tell you why it can’t arm. It 100% won’t be able to arm if you are in a navigation mode or don’t have enough satellites 3D locked.

[@peterhancox5268]

@@MrD Thanks Darren but I don’t use OSD, only SMARTPORT telemetry, as I said it works perfectly in every mode, except Launch, Nine sats enough? No nav modes only Manual or Acro

[@MrD]

That makes things a lot more difficult. Do you not have video on the plane at all? I’d have assumed you would have, flying missions and nav modes.

[@peterhancox5268]

@@MrD I’m a fixed wing flier from way back, never multi rotors never fpv. Got into IINAV mainly so I did not loose gliders at the extreme range of my eyesight, just hit the return to home switch, or fail safe. Still have aircraft with F3 boards and version 1.7 INAV. Tried often but have never succeeded with Auto launch and still the same with 6.1 using Matek MWN. Only TELEMETRY

[@MrD]

Unfortunately, system messages can’t be seen via telemetry. The only other option would be to plug on to a laptop and type status in the CLI. That would list things blocking arming.

[@charliekg6600]

Mr.D, I enjoy all your videos. My inav auto launch does not seem to work with my Taranis radio, although it does work with the Radiomaster. Do you have any ideas on this?

[@MrD]

It is likely just a setting. There is no reason why autolaunch shouldn’t work with a Taranis. How do you have it set up?

[@charliekg6600]

@@MrD It's Inav 3.0.2 on the Taranis, but I also have Inav 3.0.2 on another aircraft with identical settings on the Radiomaster TX16S. I'm not sure what it could be at this point. Thank you for the reply, it's good to know it's not the radio. I will re-check the settings and dig deeper.

[@MrD]

If you’re using switched autolaunch. Make sure that the switch is in range. If you have autolaunch permanently enabled, it’s definitely not because of the transmitter.

[@lorenshartingers3575]

I'm building an Opterra 2M with a Power 25 at 1250kv. Weighs about 2300 grams. Your thrust calculator tells me I only need 67% launch throttle on 5S 11x6. My idea is to set this up to auto launch vertical and a throw wouldn't even be involved. Is this even possible with no threshold acceleration detection?

[@MrD]

No. Autolaunch needs to detect the acceleration.

[@lorenshartingers3575]

@@MrD If I go up to 11x8 it increases my thrust to 22,000 grams. Plenty for vertical launch. Would you recommend ditching the auto launch feature and just send it vertical with all that thrust and try to maintain control, or is this a bad idea.

[@MrD]

@@lorenshartingers3575 personally, I wouldn’t vertical launch an Opterra. Its a big, slow cruiser. So wouldn’t react very quickly when it needs to. I would launch it normally and keep control of it.

[@walkerparkpilot8269]

Thanks for such a concise and informative video. I seem to be having an issue maybe you can help me with. I'm running INAV 5 on a Matek 405 mounted on a twin engine flying wing. Everything seems to be working normally so far except auto launch. (Referred to as "NAV Launch" in Inav 5) I set up all the parameters according to your instructions, but when I engage nav launch nothing happens. In fact, once I select that mode on the transmitter the only way I can get it to arm after that is to remove and replace the battery. Any thoughts? Thanks.

[@walkerparkpilot8269]

Update: One of the other issues I was having was the OSD mode and system messages weren't appearing on my screen. I had them set too close to the bottom in configurator, so they were off the screen on my goggles. Once I figured that out and corrected it, I was able to just follow the system messages and now auto launch is working perfectly. Clearly, I was doing something wrong with the switches.

[@MrD]

Glad it’s all working Walker. Sorry I missed your original message. It sounds like you could be using NTSC as the video format. If you see the mode to NTSC on the OSD page, it will adjust the preview so that it’s easier for you to arrange the OSD elements.

[@catmanfpv9213]

Amazing

[@MrVantasstic]

I'm new to INav (past Ardupilot user for many many years). I have a couple of questions on INav 7 AutoLaunch. #1: If I enable AutoLaunch always active what happens if I accidentally disarm in flight? Does INav know it's already flying and skips the normal AutoLaunch requirements (i.e. if I rearm and advance throttle it responds to my actually throttle setting vs going to idle throttle setting and waiting for the toss acceleration). #2: Can I just enable AutoLaunch to a switch position AND also enable Loiter to the same switch position? Will INav enter the launch sequence and then automatically switch over to Loiter mode once the launch sequence termainates? I ask as Ardu Takeoff mode does both takeoff then loiter as one flight mode and, if re-engaged in flight, skips the takeoff and jumps directly into Loiter. I'm curious if INav will operate the same way.

[@MrD]

If you disarm in flight, rearm within 5 seconds and it will immediately rearm. If you take longer than 5 seconds, you will need to follow my video from a month or so ago about rearming in flight. No, don’t put launch and a flight mode on a switch. Especially a navigation mode. That will block arming. Just follow the procedure in the video and it will loiter after the launch completes.

[@MrVantasstic]

Thank you for the information. I've already added your Arming Override in the INav Programming. I also set up some logic in my Tx to not activate disarm unless my throttle is at zero...which I rarely do in flight. Chances are now pretty slim that I do accidentally disarm in flight.@@MrD

[@MrD]

Honestly, I don’t have anything that blocks disarming. I see disarming as a safety feature that should not be blocked in any way. I’ve accidentally disarmed a total of 3 times in the years I’ve been flying. None of the aircraft touched the ground after doing so. And one was a quad. People tend to be worried about it. But honestly they shouldn’t be. Especially with INAV 7. You just re arm. You don’t even need that programming anymore. It just works.

[@pilotmiami1]

launch not working I am following full proceduir.system arm,motor spin.in acro,horizon or angle mode stabilization system in glider no working.please help.

[@MrD]

Please could you describe the issue a little better? It's hard to follow what you are doing. Also explain how you have autolaunch set up.

[@danjensen9425]

Awesome

[@MrD]

Thank you Dan.

[@staydown.normal5323]

8:50 velocity shake

[@MrD]

Nah, not a shake. Just a fake throw. Never shake before autolaunch.

[@staydown.normal5323]

@@MrD its just for me a book mark

[@staydown.normal5323]

i do shake my sonic modell 600m but thats because the timing is too slow before the motor kicks on so i shake..... thats why i saved this so i can change the timing.......i just built my sonic model pro with inav 5.0.0 and with a new matek f411 wte..... im going for 6s 60 amp 1400kv

[@MrD]

Idle throttle would be the way to avoid shaking. Be careful with the F411 on 6S. Make sure to put a capacitor on the ESC to stop any spikes. They have knocked out the F411-WSE quite a few times.

[@staydown.normal5323]

@@MrD idle throttle is the speed of the motor at idle that's not my problem it takes too much time for the plane to notice I thrown it so I will adjust the motor delay like I have in the past.

[@aharongina5226]

what is the reason you hide half of the screen with your face? thumb down

[@MrD]

The reason for the large camera window is because I demonstrated things with the Dart 250G, which were useful visual guides. I made sure not to cover any of the parts of INAV Configurator that were being used in the tutorial.