OpenTx Companion Tutorial • Best Throttle Cutoff Using Logical Switches • TX16s [Intermediate]

This OpenTx tutorial from rcvideoreviews.com shows you a much better, much safer throttle cutoff. You'll get the added benefit of learning a little bit about Logical Switches and Sticky Logical switches.
The techniques in this video are shown on a Radiomaster TX16s, but they will work on any OpenTx platform including Taranis, Jumper, Turnigy, etc.

[@scrc511]

When I was watching this and trying to get sense out it, I said why not just go to especial function and just assign a switch to override throttle channel, but it’s finally making sense that if the assigned switch is accidentally switch off and say the throttle is at 60% there’ll be no output until the conditions are met, bring the throttle to -99 for it to be active. Good safety feature, on not to have accidental spool up when override switch is somewhat disengage. Making sense to me now.

[@RCVideoReviews]

Yeah, it's a little different, but simple and elegant.

[@petebuttons210]

It has been ages since I did the logical switch theory and am very rusty. It is great to be able to follow the "logic" through your videos. Never under estimate the power of logic. Great tutorial. Thanks

[@RCVideoReviews]

Excellent! It's really fun to play with this stuff when you have an idea of what it can do.

[@Shipe-ee]

As a newbie to the TX16S world, I have been studying videos on everything that I can apply to my fixed wing use. Like many folks here and elsewhere, I have been cut by my electric planes more times than I care to admit. Thank you for taking the time to do these videos. I am going to incorporate this switch set up for all of my fixed wing plane model templates.

[@RCVideoReviews]

Glad to help

[@ZEAL_FPV]

Finally got a chance to use your Cutoff switch settings, I've been running into instances before where I've nearly sliced my fingers if my thumb wasn't pressing down on the throttle stick for my RC Wings. Thank you so much, the presentation was awesome and very well explained!!

[@RCVideoReviews]

Glad I could help! Even better that you're safer ;)

[@kdubs57]

Thanks! After watching a few times and getting used to the vernacular I figured it out. I was even able to apply it to a three position switch. With the two positions nearest me being “throttle cut on.” That’s almost as much fun as a smooth landing!

[@RCVideoReviews]

Excellent!

[@raysmith3760]

How do I revers my throttle cut on my TX16S.

[@RDJunc]

I just received my TX16s and am pretty excited about all it can do. Your videos are very helpful, even though we are all moving past OpenTx to EdgeTx. I did not like the conventional throttle cut and really liked your take on it. I have implemented a variation on it that you might be interested in. I don't fly electric but I do use an ignition cutoff module in my gas planes. I have always been reluctant to assign a big easy-to-bump paddle switch to the ignition cutoff. It is far more likely that I will hit it accidentally than my plane will start itself once the ignition is armed. Thanks to EdgeTx, I found a solution I like. When the radio starts, the trottle is overridden to -100 as is the ignition cutoff channel. There is one logical switches for this. It is a sticky switch that goes true when Trim6 is pressed up and goes false when Trim6 is pushed down. That true condition is when the ignition is armed. Special functions set the ignition off when the L0x is false and on when it is true. The radio announces the armed and disarmed condition with the pressing of Trim6. Now I feel better about the risk of accidentially shutting off a 1/4 scale plane. Again, thank you for your videos and I am sure I will comment on others.

[@RCVideoReviews]

That's the fun thing about EdgeTX, lots of different ways to make the system work best for you. Here are a few other takes: kzbin.info/www/bejne/mKbUgoGQi9SIjrM kzbin.info/www/bejne/hZunpH2IqNBnl80 kzbin.info/www/bejne/inrMXph8pbOLrc0

[@SnoMoJoe1]

Thanks for sharing this set up. Last weekend I had an incident with my glider when I bumped the throttle cut switch. This will really help with safety. Your videos are always so well done.

[@RCVideoReviews]

I appreciate the comment and am glad to help especially when it comes to safety.

[@vonSchwartzwolfe]

Thank you , I just programmed that in and tested it in a plane sweet safety motor cut off tip. Your videos are awesome, I'm really getting to understand open TX with them.

[@RCVideoReviews]

Good to hear Ron. I'm glad they're helping you learn to use the radio. Keep at it, and you'll be an OpenTx ninja before you know what happened.

[@nicholassakrekov8094]

Thanks for all your videos'. I recently got the tx16s and the ultra stick pnp by hangar 9. Your videos' have been super helpful learning this awesome radio. I used your crow flaps and acro setup for this beast!!!

[@RCVideoReviews]

Awesome’ Glad to have helped out. I need to setup crow on my glider.

[@saramadu204]

Thanks for sharing your ideas. This really helped me to set my old quad qx 200. I had to put -150 instead of-100 value. Thanks again.

[@RCVideoReviews]

Glad it helped

[@solarstrategy9967]

That's brilliant John. Could have saved a couple of my mates some injuries.

[@RCVideoReviews]

Yes, this one is very good. I need to add this to all of my planes.

[@CHRIS-wk5kv]

Oh man! Got my new TX16s now just need Covid to allow my battery to fully ship..been waiting 4eva...love these vids...you'll be my go-to KZbin channel to figure it all out for sure. Hopefully it is easier to learn than I'm thinking it will be. Thanks for the vids!

[@RCVideoReviews]

You're very welcome. Glad you found them. Enjoy your new radio.

[@aspectcarl]

Excellent thank you, my simple non logical throttle cut off seemed to give me instances where I could not get off -100 throttle even with the cut off switch mode to enable throttle. Some nice safe logic there :)

[@RCVideoReviews]

You're welcome!

[@jessdyba]

Exactly what I was looking for, you did excellent job. Thanks.

[@RCVideoReviews]

Glad it helped

[@hinkepank1239]

Not bad - it happened 2 or 3 times that I accidentally got power to the engine by flipping the switch. But also it happened once that I just hand-started my plane by myself and then I accitentally flipped the cut-off-switch in that critical starting-phase. The engine of course stopped immediately and I had half a second why the f... the dammed thing didn't work anymore. After a more or less happy landing I looked on the remote and found the cut-off to be active. A way to prevent this is to add a 3rd logical switch which defines the reset-condition of the 2nd (Sticky) switch as : L3 = a

[@stephanbre]

Awesome! Thanks for sharing. Reduces drastically risk of getting hurt from prop.

[@RCVideoReviews]

Yes, this is a good solution. Also will help prevent your plane from flying off when you unlock the throttle.

[@miken5805]

Awesome video! I am new to open TX and I got it working first time. You saved me and other people from injury.

[@RCVideoReviews]

That always makes me happy to hear. Good job!

[@jimstewart6720]

Hi! Thanks for the mod and a great explanation. Enjoying your series and find it really helpful. I put a 0.2 sec delay on activation of L01 as an additional security.....just a suggestion :-) Thanks again and keep up the good work.

[@RCVideoReviews]

Glad I could help!

[@SKotekar]

This is a great video. I used to use the old simple throttle method. After seeing your other video I tweaked mine a little bit further by introducing a third Edge logical switch in the mix. This prevents throttle activation when the switch is in correct position and you then lower the throttle down to -100. With this you have to have low throttle and then flip the switch. Great videos, inspired me to do more stuff with opentx. Keep them coming. It is much appreciated.

[@RCVideoReviews]

I'm always happy to help make things safer out there. Glad you found a way to use the information and appreciate the comment. Thank you.

[@uglybrothersracing]

Nice ! I'm a new plane pilot , setting up the throttle cut on my umx timber couldn't have been easier !

[@RCVideoReviews]

Right on! You found a good method in this video. I wish I had this on all my planes.

[@divyajnana]

Totally cool, great programming, took me three tries to get it right, stupid, but it works great. Thank you.

[@homegolfaustralia1078]

Here is a challenge for you. I have tried multiple ways to get a Throttle Hold/Cut switch to work on a Blade Nano S2 when in 3D mode (Red Light), including the above method. I am yet to be successful. I now challenge you to do a video for Radiomaster TX16S setup to fly the Blade Nano S2 perfectly, including a working throttle cut when in 3D mode.

[@jared3622]

Thanks for the simple guide, was easy to set up

[@RCVideoReviews]

Glad it helped

[@bstearn1653]

One of your best videos!

[@RCVideoReviews]

Wow, thanks!

[@SteveJohnstoneNG3D]

Another awesome video thank you! Now to see how to reset the timer without having to turn the radio off.

[@RCVideoReviews]

In special functions add any switch and use the function reset timer and select the timer number you want. You can also long press the jog dial on the main screen, highlight reset, press the jog dial and chose a timer to reset with the dial.

[@nextgen3dsupport370]

@@RCVideoReviews You're a star! Thank you

[@Bigtbuilder]

Superb video, excellent presentation, thank you.

[@RCVideoReviews]

Glad you liked it!

[@zoltandjapjas4905]

This is really smart! Thanks for this tip, I will implement it right away :)

[@RCVideoReviews]

Yup, I have to go back and adjust all of my models now. I wish Companion had a method of pushing logical switch and special functions to all models in a Companion document. Anyway, glad you found the info useful and thanks for taking the time to comment.

[@keithschevling66]

Well, I'm very late to the EdgeTX party having recently bought a TX16S MkII and working with the R86C SBUS for Heli and the S6R 3-axis for Planes. Still have my DX18 Stealth, but I have a feeling that in time Spektrum will dwindle..... maybe.

[@stevejohnson3991]

This is a great tutorial, it was easy to follow. I have a question though - this is a relatively complicated set of steps that will need to be duplicated for all models. Is there such a thing as macros in EdgeTX that would let me define these steps, and invoke that macro when setting up a new model - instead of repeating each individual step?

[@RCVideoReviews]

Usually we just duplicate and existing model and on the duplicate, rename it, set trims to 0, and adjust the timer.

[@TheFamilyman67]

excellent safety tip - love your videos man! keep them coming. Now, I already know you are not into helicopters. I‘d therefore like to add a WORD OF CAUTION for intermediate to advanced HELI-PILOTS who are planning on learning AUTOROTATION. When you go through practicing autorotation landings, you will eventually come to a point where you cut your throttle in flight, autorotate your heli and find yourself in a situation where you have to abort the autorotation. A reason could be that your heli is too far away from your desired landing spot and you do not wish to park it in between the vegetables 🌽 🍅 In this case if you have this safety function active, you will need to also pull down your throttle stick to the bottom to re-activate you engine. since however throttle and collective pitch are on the same stick for helicopters, you would also move collective pitch to full negative which would make your heli come down even faster. More realistically you will not even remember that you have to do that and the engine won‘t restart and your heli will start harvesting the potatoes. my recommendation in short: If you practice autorotation on a helicopter, do not use this function! As a heli pilot you may want to not use it at all whether you practice autorotations or not. I will however activate this on all my planes and copters. Thanks again and a big thumbs up for this channel! 😎👍

[@RCVideoReviews]

Great advice. Thanks for taking the time to write this up.

[@DGriffiths-c5u]

Great for my planes, however to do auto rotation wit the helis will have to try to add another logic to check my flight mode normal, so it will not lock out the throttle from being throttle back on if I goof up.

[@RCVideoReviews]

That would be a good idea.

[@TK-bg6gq]

To me, this should somehow be installed as a factory safety feature. Not being very computer savy, i wish you could explain how to perform this function with just the tx16s. I really like this tx alot more than my nx8 because it seems easier to program it to what I want and not preset to their preferences. I appreciate your videos none the less, and have learned a good bit watching your channel!!

[@mosoysa7782]

Absolutely the best on line vid on throttle set up. Brilliant. Works beautifully except when the throttle trim is changed from the Centre position. I've played around with every possible iteration of the values in LO-1 and Special function, No joy. Any chance you might review and provide a solution, please? will be much appreciated. Thanks.

[@RCVideoReviews]

This is pretty easy to do. You need three logical switches. L03 will replace L01 in the example: L01 - THR < xxx (high point of your trim range) L02 - THR > xxx (low point of your trim range) These two should be setup using values for x that define what you consider to be safe. In the video, my definition of safe was < 99. Finally: L03 - AND L01 L02 AND SHdown.

[@mosoysa7782]

@@RCVideoReviews Many thanks indeed. Didn't quite understand, not a techie..;o( but will give it a go nd keep you posted. Cheers.

[@mosoysa7782]

As mentioned to keep you posted. Exactly as above, couldn't get it to work. It was hard to understand. In some models the throttle is reversed. will this affect? It will be much appreciated and benefit many of us if you would consider doing a video with you're usual clarity and examples.

[@vonSchwartzwolfe]

one thing that would be a big help to this. Awesome safety step by the way. How do you ad a voice warning that the "throttle is high" when this setup stops the throttle from working?

[@RCVideoReviews]

That's easy: Remember NOT L2 is the condtion in which we override Throttle. So just create in L3: a>x I:THR -99 AND !L2 This translates to: Anytime the throttle stick is not at idle and L2 is not set, ACTIVATE. In Special Functions: L3 Play Track "Throttle Warning" or whatever alarm you can find that meets your need. If you only want the warning when the throttle stick is at least halfway up or more, then: L3: a>x I:THR 0 AND !L2

[@vonSchwartzwolfe]

@@RCVideoReviews thank you. I will have to watch all your videos again with a notebook, after my radio gets delivered.😁

[@RCVideoReviews]

You're welcome. You really just need to get Companion going and get in there and tinker away. You can't hurt anything. That's the best way to learn. Use a video example like I have here and then tinker in Companion.

[@enriquekramer4590]

I believe this is more or less the same that Painless 360 devised. I have it in all of my OpenTX transmitters!

[@RCVideoReviews]

That figures. He's a pretty smart guy.

[@notanotherrcchannel]

Fantastic explanation. Thank you!

[@RCVideoReviews]

You're very welcome!

[@neomayad]

i noticed that i cannot bring up the OSD menu to make PID changes, etc. unless the system is armed using this throttle cut method. in order to bring up the OSD menu i have to put the throttle to up 50%, full rudder and full pitch. luckily she didn't land hard lol smh have you found a way around this, or should i be looking for another way to throttle cut.

[@nerdsanctuary8307]

Thanks!

[@RCVideoReviews]

You’re welcome.

[@moleisrich1]

Yea man thanks that is nice.

[@RCVideoReviews]

No problem 👍

[@philiptarpley8416]

Incredibly informative, thank you!

[@RCVideoReviews]

Glad you enjoyed it!

[@orellanajuan9431]

I’m loving these vids!!

[@RCVideoReviews]

Happy to hear it. Thanks for watching and commenting.

[@EdwardThian]

Thanks for the tutorial. I imagine this would not be suited to autorotation (bailout)? Do you have a similar setup which works with autorotation bailout (without having to lower the throttle stick all the way down to bailout from autorotation)? Thanks again.

[@RCVideoReviews]

I do have an auto-rotation setup for Nexus. I'll be posting a motor setup video in my Nexus series soon and will cover radio motor setup (including auto) in that video.

[@EdwardThian]

​@@RCVideoReviews Thanks for your reply. I'm looking forward to that video! I've just finished setting up my Nexus following your videos. The one with the pro pilot was especially helpful!

[@jlauby7777]

My simulator in open companion wont activate.? How did you bring up the output picture next to the sim? Thank John

[@RCVideoReviews]

The picture loads if the sd card is in sync and the models in Companion are pulled in from the radio. I don't know why your sim wouldn't activate, I haven't had that issue before.

[@picturetoponder]

I have a little bit off-topic question: Can throttle cut be accidentally overridden by another switch, let's say stunt 1 or stunt 2 switch?

[@RCVideoReviews]

If throttle cut is setup correctly nothing should accidentally override it. But you can set things up so another switch could change throttle cut.

[@1Sigmeister]

Have you got any advice for using three position switches? I only have three position switches available. I followed your instructions. Everything works as expected,.... unless I use the middle switch position. It will arm, but then it will not disarm, no matter where the switch position is, even in the formerly "safe" position.

[@FrankReijn]

many thanks for all the video's ! question, how and where do you reccomend the motor on and motor off annoucement ?

[@RCVideoReviews]

When the motor can turn with throttle stick movement I want to know. When the motor can no longer turn with throttle stick movement I’d want to know what too.

[@FrankReijn]

@@RCVideoReviews i have implemented your settings and it works perfect. Only Whish i have now is to have it spoken by a wav file. " Motor on". "Motor off". and then respect the thr stick position like your settings. Would that be possible?

[@alexherrera3918]

👍👍👍👍👍Great video!!!!!!!!!!!!!!!! I have a question about open tx : Problem: The Apprentice S , has a safety feature that requires the receiver to be turned off by a power switch before the battery is connected in order to be able to arm the motor later when the switch is turned on. The problem starts when I want to use this receiver in another plane, that does not have a on/off switch. If i power the ESC without the on/off switch on traditional configurations then the receiver send the signal to the ESC which put it in safe mode/ locked mode and then motor does not arm. But if I physically disconnect the receiver, connect the batteries and then connect the receiver the problem is solved. Question: Is there a way to program a switch(virtual switch/logical switch ) in OPENTX that simulated a physical switch between the esc and the receiver? The idea is to avoid for a few seconds powering the receiver after the battery is connected to the ESC. Then use this programing/virtual switch, to later power the receiver so the motor gets armed. Please let me know if you have any advice or if this is even possible with OPENTX. Thanks Alex

[@RCVideoReviews]

Replied in email.

[@alexherrera3918]

@@RCVideoReviews thanks!!!!

[@speed2o7]

Is it possible to have the radio play the throttle warning if you attempt to arm when your throttle isn't below -99?

[@RCVideoReviews]

If your lock switch is SFup for example, you can make a logic switch that says a>x -99 AND SFup. When you move SFup in this case and the throttle is not -100 the logic switch will go active. With an active logic switch you can use that to trigger a special function to play a track in your soundpack.

[@manuelbeltranmeza]

I love this, tanks fpr sharing. Greetings from Mexico.

[@RCVideoReviews]

Glad you enjoyed it!

[@Larryn7luf]

Help, I would like to set up the momentary switch to make it a dual switch arming, can you help?

[@RCVideoReviews]

Sure, look into using Edge and Sticky switches.

[@graywoulf]

Wow! That was quite a trip. I have it working and thanks for the tutorial. I don't guess that there is a way to do this like setting up a prearm switch like I do for my quads is there?

[@RCVideoReviews]

I'd need to know more about your prearm function.

[@jerryzito6840]

I really like the idea of using Logical switches, but I just wanted to be sure. Probably a dumb question, but will this affect all my models or is it model specific? I relatively new to OpenTX.

[@RCVideoReviews]

Logica switches are per model settings.

[@jerryzito6840]

@@RCVideoReviews thank

[@cowboybebop521]

A bit confusing around 3:30 mark. When you say “less than 99” you mean greater than -99 right? Because less than -99 would mean -100.

[@cowboybebop521]

Also the -99 in v2 is represented by the variable “a” while x is whatever the throttle position is in real-time? I’m guessing.

[@cowboybebop521]

Nvm I guess I got it backwards lol

[@leonardcooper99]

I'm a newby and have had exactly the 'accidental' throttle rev-up situation when setting my throttle activation switch. It was even more embarrassing because someone else was holding the the glider preparing to launch for me! I am not yet into Open Tx Companion but I managed to copy this to the transmitter directly, so I'm really pleased with this explanation. Many thanks! Is there any way to make this a 'Global Function' so I don't have to set this up for each model as I enter it? Either way this is a great video and I'm grateful.

[@RCVideoReviews]

Channel overrides are not available as global functions so you’ll want to use this in your standard model template. I’m glad the material was helpful for you.

[@MirageParties]

Great vids thank you. Quick question - How using this set up can I add a logical switch to prevent accidental throttle cut during flight

[@RCVideoReviews]

You probably need some sort of sticky switch that says once throttle is armed and throttle stick is moved past idle, override the throttle cutoff switch. Then you'll need more logic to allow you to re-arm on the ground. It starts to get messy doing that IMHO.

[@TheBigChinoDon]

I've done this with a momentary switch for gassers. Essentially, once cut off is armed, to make it inactive you have to hold the momentary switch.

[@RCVideoReviews]

@@TheBigChinoDon Thanks for sharing Don.

[@MirageParties]

@@RCVideoReviews Thanks, on a steep learning curve here having decided to switch to OpenTX.

[@RCVideoReviews]

@@MirageParties Just take one step at a time. If you try to figure out too much at once it gets overwhelming. Learn the basics first then get fancy.

[@orellanajuan9431]

Mind blown 🤯

[@RCVideoReviews]

I hope in a good way..?

[@fredheimer]

first, thank you for your nice Throttle Cutoff function. is it possible to extend it with a flight timer that starts when the the throttle stick is going up from -99 and stops when the throttle stick will move down to -99 and also stops when the SH Throttle cut switch is activated.

[@RCVideoReviews]

Yes. Logical switches will do that for you. You can make one for your stick values then make another one that OR’s that one and your cutoff switch together.

[@BrianRamseysg01]

Love this one will edit everything I have with a motor! So I am now thinking about how to programe : do roll to the right when momentary is held for 4 secs and ailr full left same time? Fly to the future.. and beyond .. with RCVR.

[@RCVideoReviews]

It's a very good way to manage throttle cutoff. Did you figure out your other issues?

[@BrianRamseysg01]

@@RCVideoReviews I think so by remembering the rule of `thumb' helped me ie. May the Source be with you haha so to speak what happened was I DL amber Sound Pack put on sd on desktop and hey presto found that I was syncing PC to radio instead of radio to pc brill so addressed that problem straight away now have full amber vocab and see all tracks I want. I must say so far it all seems robust I ignore the sd card needs scanning message on boot loader mode I dont get it on radio on use usb mode. So yeah all in all so far so good I even have two whippets set up one Whippet S which has the original Spektrum RX and is in repair and the Whippet with a bangood dsm micro rx and two hobby king micro servos which was repaired but wire to power came adrift so now I make a micro soldering iron wound copper wire round tip of iron see if I can fix have some very thing solder too I better add I am kitchen workshop kinda chap not a engineer lol

[@RCVideoReviews]

@@BrianRamseysg01 Keep experimenting with it. As long as you aren't flashing firmware, most of what you do to an OpenTx radio is recoverable.

[@BrianRamseysg01]

@@RCVideoReviews yes also found that one may copy lines from model to model at same time as editing I just copied the lines from Eachine P51D throttle cut off to my un flown un bound Radian Pro model and it all checks out in monitors and will also try make it work in as yet unflown A800 these and the brace of whippets with different recivers in should keep me occupied between storms and finding a club that isnt full of oil barrons save me from being self taught and a pirate flyer ....!!

[@graywoulf]

Why would this work for one plane and not another? Two different planes with same settings for throttle cut just as you laid out. Weird problem.

[@RCVideoReviews]

Hard to answer without seeing your configuration. Are you on discord? Invite is in every video I post.

[@kittyhawk9886]

Very good.

[@RCVideoReviews]

Thanks!

[@seafly845]

Hi, would these settings work on edge TX version 2.8 .

[@RCVideoReviews]

Yes, pretty much a straight copy/paste.

[@b.w.oostdam8875]

Very good ! Thank you!

[@RCVideoReviews]

You're welcome.

[@berndcopter9410]

Hello, you told him that you had replaced the SH switch. The SH is soldered on a circuit board, did you desolder it and replace it with the switch on the left side?

[@RCVideoReviews]

On three radios: kzbin.info/www/bejne/eWSygGWmpKpll68

[@berndcopter9410]

@@RCVideoReviews Thank you very much, that is exactly what I was looking for. I had entered SH as a search term and unfortunately found nothing useful. As a previous Spektrum user, I absolutely have to change the switches. Thank you again.

[@RCVideoReviews]

@@berndcopter9410 You're welcome. Be careful not to keep heat on the switch too long.

[@berndcopter9410]

@@RCVideoReviews You can get both switch boards as spare parts in shops. The two boards cost just under €10. I wonder why Radiomaster does not offer the boards properly configured for former Spektrum users. The TX16s is so well thought out that this should also be possible.

[@Graham_Shaw]

That's a great way of increasing throttle safety, great for planes & drones too I guess. Let me ask you this though. I fly helis, and when the heli spools up, I'd like to be able to create a logical switch that will only disengage Throttle cut when my pitch channel is around mid stick, or 0° pitch (say between -05 and +05) instead of what you did with throttle stick at < -99% Is that possible? Thanks!!

[@RCVideoReviews]

Sure, just substitute the throttle check I did @ -99 for your pitch value @ 0. You could also do setup where you have: L1 - Pitch is > -5 L2 - Pitch is < +5 L3 - L1 AND L2 Then L3 becomes your L1 like I used in the video.

[@Graham_Shaw]

@@RCVideoReviews Ah, OK, cool, I see, thanks!! 👍

[@RCVideoReviews]

I found a simpler way to do this: L1 Function: |a|

[@tala23ful]

I am helping a club member new to open tx (so am I) and have found that if the throttle is high and you go to arm the throttle will not go active, good, but if the throttle is brought down whilst the switch is in the armed position it will go active. Is this correct or have I missed something in the setup? I thought the throttle should not go active until you disarm and then rearm with the throttle low?

[@RCVideoReviews]

Something is wrong. Maybe watch the video again. Throttle should be inactive until it reaches zero.

[@tala23ful]

@@RCVideoReviews This is what is happening the throttle is high then arm no throttle, locked. You bring the throttle to zero (-100) while in the arm state and then raise the throttle and it is away and running. It has reached the zero state while armed then it is active, it's not locked out. Should it remain locked until you disarm then rearm?

[@tala23ful]

Got it sorted switch configuration had me messed up with the arm disarm all good now thanks took a couple more views of the video Cheers

[@RCVideoReviews]

@@tala23ful There is no particular order of battle in this logic setup. Two conditions have to be met for the throttle lock to become active: Condition 1) Throttle < 99. Condition 2) Arm switch armed. That's it. If you complete both of those conditions, the throttle is armed. You could add logic to ensure the throttle cut is disarmed first, then the throttle is dropped to 0, then the throttle cut is disarmed. But the video at approximately 8:00 shows exactly what is supposed to happen and exactly how it happens. There is no additional criteria for the logic steps I used in this setup.

[@RCVideoReviews]

@@tala23ful Ok...glad to hear you got it.

[@brownie6451]

I must be stupid! wrote this logic 4 times, tried to change switches still don't work! In fact, when I put the throttle halfway up and turn the switch to arm the motor, I can't disarm it by moving the switch back, unless the throttle is all the way down to zero. Just the opposite of what I want!

[@brownie6451]

The only thing different about my set-up is my switch goes back to throttle cut instead of forward. Is my radio defective?

[@BandsawBob]

Another great video. However, it's too bad this type of logic can't be implemented as a Global so it applies to all models rather than having to add it to each model.

[@RCVideoReviews]

Usually when they don't offer logic in global functions, it has something to do with safety.

[@supwicha1]

Thank you very much, been using your throttle cut setup for all of my models. Ran into a problem I could use some help on regarding this setup. I have a couple gasoline models that I used this setup on and it works, unless of course I adjust the idle using the trim. If the trim value in the flight mode tab is anything other than zero, then throttle cut is always active. What is the workaround to have the safety feature of throttle cut on a gasoline (or nitro) model while still being able to adjust the minimum idle as needed? Great videos!!

[@RCVideoReviews]

Set v2 in L01 to a level that accommodates your trim. i.e. L01 requires the stick to be < -99. If you're using trim the stick might be -85. So change L01 to be < -85. Just beware that any stick position between -100 and -85 will satisfy L01 and allow arming.

[@jimshuck7555]

Thanks for the info. I need to watch this about 20 more times before I think it will make total sense to my brain. I use the SA 2 position on the left for throttle cut. I would like to try to set the following: 1. For throttle cut: SA switch toward me, and the throttle is cut at any throttle stick percentage. no issues here. 2. For throttle active: Throttle stick low, momentary switch SH is pulled towards me, and then SA stick is then set away from me. Release SH and throttle remains active. Is it possible to use a momentary switch in this fashion? In other words, I want the throttle arm switch to only be active when the momentary SH is activated and throttle is low, but then throttle to work normally once the momentary SH is released. The reason I would like to do this is I would like to set my system so, that like a gas plane, the prop idles constantly when throttle cut is disabled. Obviously with that set, anytime you move the throttle cut disabled the prop will be turning. Having to pull the momentary switch and then activating the throttle enable, along with throttle being low, ensures the "engine start" is warranted and at idle. Looks more scale that way :) I love electric but hate the prop stopping and starting all of the time at low throttle. Thanks in advance for any help you can provide here.

[@RCVideoReviews]

The logic on opentx is pretty flexible. You may need to take a look at experimenting with sticky and/or edge switches to do what you want with the momentary switch.

[@jimshuck7555]

@@RCVideoReviews Here is what I came up with so far. Logical switch 01 is throttle less than 99 and SH (momentary) towards me for 5 seconds arms the throttle. This “starts” the motor because I have the throttle endpoint set so it runs the motor at lowest rpm. The SF switch moved away from me disarms the throttle and stops the motor spinning. Visually you know when plane is armed as motor is spinning. Motor will not start unless throttle is low AND momentary switch is held for 5 seconds. Initial status of SF doesn’t matter but if I leave it in the forward position it takes a full toggle to disarm the motor so safe in the fact that I can’t accidentally bump it. I will ponder the ramifications of this setup but so far seems like basically what I was looking for.

[@enriquech4041]

I guess you can do that as a global function, right?

[@RCVideoReviews]

Probably not. Not all functions are available in Global Functions and if memory serves, I don't think Channel Override is available in Global Functions.

[@enriquech4041]

@@RCVideoReviews Ok, thks. Is there any list where you can choose from to use as a global function? Regards

[@AdrianoCasemiro]

Fancy function!

[@RCVideoReviews]

Cool isn't it?

[@ZenderStuzer]

Sorry, I do not see how this is smart. You can accidently hit the throttle-cut switch mid-air without noticing. And then good luck pulling out of the dive;)

[@RCVideoReviews]

Yeah everybody has gripes about throttle cutoff. This way and you kill your plane. Without the extra safety you cut off your finger. If it’s not for you it’s not for you. I’ve shown both ways to do it and both ways get gripes. So chose your poison. Edit, Actually I've shown three ways to do it with the quad style cutoff and that got gripes too.

[@ZenderStuzer]

​@@RCVideoReviews​, however, I did enjoy watching your video! Great example of using logical switches - I have not touched those yet and your explanation was crystal clear, thank you for that!

[@charlesdouyon5052]

I wish there was a way to like this twice or something

[@oldanalog_synth9244]

Very good, thank you!

[@RCVideoReviews]

Glad you liked it!