Differential thrust on Spektrum DX6 or DX9

[@MrBIG4D]

OMG!! You JUST saved my sanity!! I have been trying to set this up on a boat (I know, don't bash me) and I have been PULLING MY HAIR OUT!! I knew it was possible because I have seen it done! THANK YOU for posting this video!!!

[@mountaindewdude76]

i've been flying rc's for about 9 years and never needed differential thrust. I've got a build going on right now that has twin motors....needing differential thrust. Although I have a Gen 1 DX8, I was able to follow your video, step by step, and I now have differential thrust working. Awesome! Thanks for your video!!!

[@Joe_Zajac]

Incredibly helpful 7 years later on my NX10 on a Flight Test G-44 Widgeon using a Spektrum AR630 receiver. Works perfectly! Thanks!

[@johnvinson1939]

From the AMA Feb 2021 edition of the Model Aviation magazine, I've started the build of the model on the cover. It's called the Yin-Yang and your video is nothing short of awesome, and because the model doesn't have any rudder control, (it's solid), your video will help me with my dual motor, (one a pusher, the other a puller or tractor as you call it), differential thrust setup. You have helped me more that I can say and I thank you for taking the time to create one of the greatest and easy to follow videos, that I have ever viewed. Again, thanks for eliminating one giant headache for me and at the ripe old age of 82, (just had my birthday in January), the fewer problems I have to solve, the more time I have to enjoy my Golden Years and the RC hobby that I entered into about 6 years ago. THANKS! THANKS! THANKS!

[@stevenungester927]

I tried this on the DX8 WORKED GREAT!!!! however I learned you can't do throttle cut! this was THE CLEAREST EXPLAINATION I HAVE EVER HEARD. THANK YOU SO MUCH SIR! Keep doing great videos!!

[@georgesager1573]

Steve I hope you can help me. I just setup differential thrush and have the same problem with throttle cut with Aux 1. It works just fine with the motor plugged into the throttle on my receiver. How did you get it to work on both motors? George

[@stevenungester927]

@@georgesager1573 are you on Facebook?

[@georgesager1573]

@@stevenungester927 yes

[@stevenungester927]

Hit me up on Facebook... I'll connect you with the right person

[@rob737700]

I just used this video to set up my hobbyking Lancaster (recently built a spare that I have had for years in the basement). I usually struggle with programming, thank you for making it easy and fun! hope to see more of these tutorials.

[@chrisstolle5664]

lancasters are sweet planes!

[@Eugensdiet]

Very nicely done. I've watched a bunch of how to's on Tx setups and they are always hard to follow but your's was very clear . In addition this is exactly what I wanted to learn.

[@8poundquark]

Thanks for your help! No need for a water rudder anymore! I used this tutoring today to set up my PBY and aside from switched channels, I'm set.

[@d.c.r.ccountryman7453]

Excellent job explaining how! i used this and had NO problems setting it up on the first try. i give it a 10!

[@Hootysdad]

This is exactly what I was looking for. I am about to begin a Grumman Goose build and I definitely would like to have differential thrust with this plane for control while it's on the water. Thanks for this perfect explanation and setup.

[@georgesager1573]

Ron were you able to setup throttle hold for both motors? I haven’t been able to get throttle hold to work on the motor plug into Aux 1.

[@Scraboview]

It's an 11 year old foam semi scale kit which was designed for 400 size brushed motors and nicad batteries. My idea was to tart it up a little and over the years I have almost rebuilt the entire airframe, adding retracts, using brushless motors/ ESCs and lipos. as a result it has taken me too much time so far and I have decided that it needs to earn it's keep! Originally the rudders were to be fixed and I had plans to activate them, but the servos and linkages were going to add some unwanted weight at the wrong end of the airframe, so your info should allow me to gain some yaw control. I have connected the tail wheel to the rudder channel and now have the option of adding differential thrust for accurate ground handling/ taxiing. Thanks again.

[@philthayer4087]

Cool, I think you need to not only increase the motor on motor x but also reduce the opposite motor. Much smoother and you can still steer at WOT

[@roddraym]

Chris, Thanks to your video, my understanding on this topic is much clearer! Thanks for sharing and Happy Holidays!

[@mightynuthead]

Great thanks, Mr. Stolle. I used this on the DX6E and took me 5 minutes to get a working twin plane. Awesome !

[@chrisstolle5664]

5 minutes? Not fair. Took me hours to figure out.

[@mightynuthead]

World is full of unfairness, Mr Stolle. But it's nice to know that somewhere on earth there is someone who is very grateful to you. :-)

[@chrisstolle5664]

Best reply ever!

[@bindasbanna]

Please confirm the full model name

[@bindasbanna]

Chris Stolle Sir, please confirm this differential thrust settings can be done in Futaba T6K 6 Channel 2.4GHz T-FHSS

[@dcsmith5839]

I know it's an older post,but Thank-you.I have a DX8G2 that this will work on. Got the basics,but the mixes and channel assign are a bit of a black art to me.Much easier to see than read about it.

[@nateolmsted22]

Every time I set up a new dual motor toy, I rewatch this video haha probably done it a dozen times now but I can never remember it all. Thanks man! Great video

[@chrisstolle5664]

Kind words!

[@wingsab]

You must be a teacher. Fantastic instructions.

[@chrisstolle5664]

Spot on. I am a teacher! And I see you are a musician? I am as well.

[@soghomog]

I am building an RC boat with 2 EDF motors, it's a big boat... I found your explanation very clear and effective and to the point. I followed all of your steps and even made a cheat sheet for myself on how to do it again if I need to. I have one question, that I haven't figured out. Since one motor is connected to the throttle input on the receiver, and the other motor to the Aux1, so when i do "throttle cut" on my DX6, only the motor that is connected to the throttle input gets cut, the other motor still gets power. How can i program another switch to cut that motor that is attached to the Aux1 input on the receiver?

[@iansummers6945]

I’ve got the exact same issue🤔 Did you work it out?

[@alanbier]

Wow. Great video/instructions. I'm building a FliteTest P-38 and using a spektrum DX8 gen2. This Video saved the day!! Much obliged. ALB

[@Scraboview]

Many thanks, Chris. Just the guidance I needed for my Lancaster with no rudders.

[@chrisstolle5664]

Lancasters are sweet! Scratch build or kit?

[@sailor0500]

Thanks for taking the time to upload that Chris.It is by far the best explanation I have seen and will use the info shortly. Mike.

[@chrisstolle5664]

Glad it could help!

[@thomasstephan366]

Did this on my AL37 Airliner with my DX8G2. I used aux 2 since aux 1 is for flaps. Thanks for the video. Just have the throttle trim centered.

[@av8tore71]

I have the new DX8G2 and follow ya because there are NO VIDEOS for the DX8G2...GRRRRR so I'm writing to send you a HUGE THANK YOU because I tried following Josh from Flite Test and he has you putting the leads in port 5&6 and using a curve plus he was using a totally different TX. So again thank you so kindly Sir!!

[@chrisstolle5664]

Glad it helped!

[@brucei8767]

Chris, thanks for this video. I've accomplished Differential Thrust previously but it was UGLY. I just took my G44 Widgeon (twin engine seaplane) and bound to this...wham bam perfect.

[@chrisstolle5664]

Glad you found it helpful!

[@danreynolds8028]

Great job Chris! Damn I would have never figured this out. I have a new Avios Albatross and need to set this up on my DX9 so I can water taxi without having a physical rudder in the water. EXCELLENT EXPLANATION. Subscribed!!!

[@OhMySack]

Just picked up an Albatross, too! Bitchin' plane and my first twin and of course...needing differential as well! What rx did you use. I have a new 637T or a 9350 I can tear out of my big Carbon Cub. Trying to get my head around what I won't have if I use the 6 channel 637T.

[@Hootysdad]

Roger this!!! I am about to build a Grumman Goose and also need directional control on the water. This will work out perfect for m.

[@braddixon3338]

And another great thanks for this video. really simple to follow and understand, just the way I like it :-)

[@aarons7836]

what a beautiful demonstration

[@TheM3MAN]

I have a new DX6 and followed your direction to differential thrust. For some reason both motors run with either left or right rudder.

[@DaveLprintz]

U R Awesome! Thank you very much! U saved me hours of frustration with this most excellent video. If U are not a teacher or professor you have another calling. My FT Guinea Pig will make its 1st flite WITH differential thrust and rates of +/- 125%. I cannot wait! The Spektrum DX9 Manual was of no help. U made it so easy. Thank you, again!

[@chrisstolle5664]

I actually am a teacher!

[@shvancy]

Great video! Worked perfectly for my 4 prop Lancaster. Love the simple step by step, easy to follow and understand:)))

[@haydeninch]

Thank you so much for posting this tutorial I would have struggled by myself. Nice Guinea pig by the way. I am making a FT Master series p-38 and want rudder authority.

[@SeaPancakes1]

Thanks for the help! I am planning on building the FT guinea pig and wanted to know how so set up differential thrust before I went and bought the electronics.

[@RARenfield]

Clearest explanation ever. Thank you.

[@thecompositescompany6589]

As many have said, great tutorial on setting up differential thrust. I have an HU-16 Albatross, where both differential and reverse thrust would be interesting. I've learned a great deal about the DX6 transmitter, but I'm not sure how to reverse both motors with the flip of a switch and retain differential thrust as well.

[@gustavbork4664]

Omg... this is the video we all have been wating for🕺🏿💪🏽

[@gracefulbutterfly]

Thanks for posting this and making it easy to understand. This will be helpful for setting up my BushMule.

[@Sabotage_Labs]

Pretty funny cause.... I Just built THE Guinea Pig too and setting up differential for the first time. Good video man. Helpful and fast!

[@scottfirman]

So regular throttle is just both engines. Thats pretty awesome! Anyone that builds their own plane can use that. If you buy a twin engine plane, chances are, it already has a set up in the esc for thrust vectoring. If something happened and you needed to replace the electronics, this would be a great way to set up all new electronics in an older plane that has been sitting that you wanted to upgrade.

[@mmmasterscross7915]

Thanks so much. I needed that for my Avois Bushmule.

[@erad05]

Thanks a lot for this descriptive instruction for the DTh Setup! The best I could find so far.

[@chrisstolle5664]

Glad it helped

[@MrVerno1960]

Excellent explanation on the set up..I am beginning my build soon on the FT Guinea Pig..thanks for posting it..

[@goku519862]

This was awesome. It also worked for the DX6e.

[@VladooDIY]

So many thanks from france! You save me time and stress :)

[@danmccall3616]

You just saved me countless hours!!!!! Thanks!! BTW, I like the way you just get to it, not a ton of BS!!!!

[@chrisstolle5664]

Thats kinda my deal bro. Glad it helped

[@GDSFlyboy]

Thanks for your brain. Mine is not that good. Need this technique for my next seaplane project. Well done on the vid.

[@chrisstolle5664]

Thanks man

[@michaelbare5380]

Thank you so much Chris. Just excellent. My Flight Test Kraken is almost ready thanks to you. One note. My DX6 did not have and Aux channel as changeable. Figured out that the FLAPS channel is the same thing. If anyone is having difficulties because they can't use the aux, just substitute the word FLAP for Aux and you should be fine. I think it is a firmware change since Chris created this video?

[@unclerojelio6320]

Thanks! One thing to note, if you are using this configuration with a DX6e, don't use the Flap system. The flaps use Aux1 and you can't select it in the Input Config screen.

[@thejourneyproduction2753]

Roger Banks how do I make differential thrust work on the dx6e then? I’ve spent around 2ish hours searching for something but I simply just give up, do you have any idea?

[@Jimgoodwin846]

Thanks for this great video, you my friend are a great teacher. You made it simple.

[@ConservativeUSA67]

Thanks for making this super easy. I was going nuts before your video ;)

[@demiurgiac]

Wow... I can't thank you enough for this clear, concise lesson! You just save me a whole lot of frustration and confusion (LOL, apparently at the cost of a a whole lot of frustration and confusion on your part!

[@chrisstolle5664]

My pain is your gain!

[@ericralston78]

Great job, works with DX8e also. First try works perfectly!! With the 8ch I was able to keep the flaperons

[@Hoomi2]

Worked great for the newer DX6e as well. Thanks!

[@davidrush9204]

Thanks so much - this is an amazing explanation of how to do this!!!!

[@chrisstolle5664]

Glad it helped.

[@johnknoy9955]

Chris, just what I was looking for for a water rescue vessel!! Turns with differential thrust! Using a Gen 1 DX18. Now, how do I hook up a third brushless motor for a third motor to give me reverse capabilities(actually a forward thrust motor mounted backwards and will not engage until I flip a switch that turns off the differential motors and only turns on the reverse facing motor? Make sense? So far the water rescue craft works really well! Thanks, John

[@elgage]

Thank you very much. I was looking for this because I was making my own ft guinea pig. I made mine look like a coast guard c-130.

[@chrisstolle5664]

Thats cool. Any links? I would love to see that.

[@elgage]

Soon still getting the final decals on

[@davehenry9039]

Thanks brother just what I needed to know plain n simple 👍

[@cobytenpenny5269]

Great Video Chris! Just what I needed to finish my FT SeaDuck! You also have a very relaxing voice, you should consider a bedtime story channel haha!

[@chrisstolle5664]

Just got my waterproof foamboard to build a seaduck as well. Bedtime story channel, huh? I like it :)

[@ddyodaman5515]

Well done! Simplicity at its best

[@chrisstolle5664]

Thanks Dan!

[@papasplanes.956]

Not sure if you're still out there, but following your tutorial my motors are opposite of what you say I need. Left rudder gives me left motor power. Same for the right. Any suggestions would be greatly appreciated 🙂

[@bernarddostie8892]

You are my saver! THANK YOU SOOOOO MUCH! I finally could setup my lovely Sea Duck. Couldn't find this info nowhere.

[@chrisstolle5664]

Glad this could help!

[@chloe19815]

This is great video how would you go about reverse for a twin screw boat. I build a bait boat and never finished it because i couldn't set up the mixing. Thanks

[@robdickinson4638]

Thanks man. Your video is great. Really appreciate it.

[@berndm9743]

Great tutorial. Very clear and easy to follow. Thanks. My question is this....I have an HU16 Albatross twin and it can reverse by switching my gear switch. Will your differential setup work with my setup? I want the differential to help turn the plane when taxiing only. The water rudder is very inefficient in anything over a 3 mph breeze. Thanks!!

[@icemans7]

Question as I'm trying to wrap my head around differential thrust (dt). Spectrum radio. #1 is the rudder still used in combination with dt. #2 do you put it on a switch to be one or the other? #3 Rudder always on with dt. on a switch. #3 I think this would be most practical as I don't think I would used it that much other than to do some crazy spins. Thank you for your time.

[@MajDuty]

Excellent. Thank you. Straight forward but: how do you set up Throttle Cut WITH Differential Thrust? Setting up Throttle cut as normal cuts only ONE motor. So how do you set Throttle Cut to cut BOTH motors?

[@chrisstolle5664]

I still havent figured that out. Sorry

[@MajDuty]

@@chrisstolle5664 , thank you for checking back. I almost had it. The trick was setting everything at -100%. This is what I learned with help: Set up a free mix as a kill mix: Throttle mix to Aux3 (where my 2nd motor is wired) -100% each way, offset at -100%. Set switch same as throttle cut. This mixes throttle against itself. Was used on older radios before throttle cut was available. Your video helped me get up to that point. Thank you.

[@chrisstolle5664]

Hey great! I'll do just that my friend!

[@sherwoodp2738]

Great explanation! Thanks for the video.

[@JoshWeaverRC]

Nice. I may try the throttle instead of the mixing. I do want channel 6 to be higher though. Ch 6 will be an additional EDF that will be running even when the pusher prop is off and folded back. I need extra umph for a heavy load.

[@JoshWeaverRC]

Nice. Tied it in. Lowered the travel on Aux1. As I rolled lower than 99 the EDF sped up even with the throttle was off. Then as I hit the throttle it sped up as well. I suppose I could run EDF only and at full throttle either by rolling travel even lower or throttle cut. I would like my throttle to be that roller full time and my pan and tilt to be the left stick.

[@diaryrecorded5524]

3:50 is sOOooo my favorite part of this video because I say the same thing all the time haha THANK YOU FOR THIS VIDEO!!! "oh its beautiful! that took me so long to figure out because I'm not very smart" haha love it so much I dont know how to put my emotions into a yt comment

[@chrisstolle5664]

Glad I could brighten your day!

[@diaryrecorded5524]

@@chrisstolle5664 Yes sir! thanks for making a good video with good info and personality!

[@Havak37]

Thanks for this. I have the DX6e and a sea duck in the mail. gunna be super easy slick thanks to your video.

[@LyroLife]

You are amazing, thank you a lot for the helpful video.

[@TactlessWookie]

Awesome and simple. Hugely helpful.

[@chrisstolle5664]

Glad it helped.

[@xs-1b415]

Great video, clear and concise!

[@arpi7297]

danke für das tolle Video , ist sehr verständlich und hilfreich TOP

[@pea2911]

thank you for this. Do you know how to do this on the DX6i?

[@Asenjin]

Thank you! This was incredibly helpful.

[@scottiniowa1]

Thank you! Works great for a DX6e too.

[@railfanWV]

Question, I want to use this to aid in taxing a seaplane. I would prefer to reduce the rpm of the inside motor when turning rather than increase the rpm of the outside motor. Is there a simple way to accomplish this? By the way, this worked great on my gen 2 DX8. Thanks.

[@gryfandjane]

Add another Sea Duck to the list! Thanks a lot for your walkthrough.

[@chrisstolle5664]

You bet! The Sea Duck looks like a ton of fun!

[@tvwang]

Question! Can we setup diff thrust on ailerons rather than on ruder? Thank you!

[@williammcvea23]

Could use some help. My throttle safety switch only works on the left motor not the right. Any idea as to how to configure so both work off same switch?

[@georgesager1573]

How do you get throttle hold to work on aux 1 throttle hold works great for the left motor

[@rcjack522]

Thank you so much I now have my jet flying beautifully

[@chrisstolle5664]

Glad it could help

[@Barwell999]

Ecellent job Sir. Thank you.

[@TheGrubmiester]

Good job, just set mine up and it works great, Thanks

[@shanethepain2009]

will this be the same setup for a DX8e current model , i have a cl-415 and a hk Lancaster to do this to ?

[@mattsrcking]

Great video! Thanks for doing it

[@dutchloveRC]

nice, simple , and slow enough for me to follow : )

[@chriscrawford1958]

This gets the differential working, but if you set up a Throttle Cut, it doesn’t cut the motor on Aux1. Any solution?

[@dangerousbutdoable9638]

Ok say I have a dx8 and I’m using a dragonlink Rx to the pixhawk. Do I still need to configure on the dx8 or should I be able to change everything in the ardupilot?

[@mattdroneon58]

Outstanding explanation! Thanks!

[@Mr.ZooKeeper]

I have a Spektrum DX6e problem. When I go to the Channel Assign then hit NEXT and go to Channel Input Config, its almost like this feature is locked. It scrolls only to 5: Gear. It lets me change this one channel. But none of the others are accessible. All other channels are appearing as N/A. Anyone have any suggestions?

[@chrisstolle5664]

Sorry man, I have a DX6e but never got the programmer. Sadly it sits on my wall. I can't help ya.

[@jordanlavezzari6750]

Ok, I’m not sure what I did but looks Functional on the radio but when I hook it up to the plane can’t seem to get the rotor to work one of the motors

[@stvrob6320]

Do you have any yaw control if you are at full throttle? Still trying to wrap my head around this. Flitetest has a video using 4 mixes, but this works with just 2?

[@chrisstolle5664]

Differential thrust isn't activated by the throttle stick. It is put into action by the yaw stick. throttle and yaw arent fighting each other. As you push the yaw stick away from center, it is throttling up the opposite motor to simulate a rudder. At full throttle, once you push that yaw stick, one motor slows down and the other one stays at full throttle to bring about the yaw action. But at full throttle, even a small input has a huge reaction to the craft. hope this makes some sense.

[@LIFEOFSTUFFEDANIMALS]

If you move your throttle stick to half way, and pin the rudder will one of the motors go full and the other shut off?

[@FloKoboi]

this video is gold! thanks

[@excellenceinanimation960]

Thankyou you have saved me!

[@nestorgomez3718]

Excelent tutorial man!!

[@Sarge707]

Great Video- Just set up my Guinea Pig by your Info BUT if I use Switch C for throttle cut it will only cut one engine- Guess you have to do something special to get a 2 engine throttle Cut? Great Job Again!!!

[@chrisstolle5664]

My only setback. I can't seem to figure double engine throttle cut.

[@barnman73]

@@chrisstolle5664 did you guys figure this one out? Setup went so smooth. I fear I am going to bite myself with this.

[@yayathidayat6678]

Have u ever try it on superbee? My superbee rolling diagonally when I use differential thrust.

[@chrisstolle5664]

sounds to me like your differential thrust is counteracting your control surfaces. Reverse the differential thrust numbers in your radio program and see if it clears up. If thats not the problem, try lowering the numbers to give you less differential.

[@johnnuske2878]

Got an old cheap fixed wing model (27MHz) that has this. I'll give this a go with it.