Spektrum DX7s flap servo setup

[@mahler2112]

Still good info I've had this radio for a year and haven't messed with it. Thanks!

[@klemkeely4735]

Thanks for this great tutorial. It is exactly what I needed to set up my Bix 2 w/flaps. The separate channel thing had me stumped. Happy flying!

[@bobclarie]

Hi Klem, glad I could help . . let me know how your Bix 2 project is progressing along. Bob p.s. post a vide of your Bix 2 flying.

[@zacktoby]

Greetings from Canberra, Australia. Thanks for this video, I like slow and clear explanations.

[@bobclarie]

You are most welcome . . and Greetings back from East Bay San Francisco. Take Care, and Be Safe. Bob

[@chefjness]

Here it is Bob. Spektrum AR636A 1 Throttle 2 Airelon 3 Elevator 4 Rudder 5 Lights 6 Flaps. Under my flap systems I am programmed according to the Maule Instruction manual. Norm: 100% Flap Mid 0% Flap w/ 4% Elevator Land 100% Flap w/ 10% Elevator, Speed 2.0s Switch = FLAP Thanks Bob.

[@bobclarie]

Do your flap servos share a single channel with a "Y" connector? I think "Norm" should be "0" "Mid" around 20 to 40, and "Land" around 100 + or - "Norm" would be flaps all the way Up. "Mid" somewhere in between and "Land" would be down to your desired angle. OK, I just looked at a photo of the eFlite Maul, and yes, the flaps do share a single channel; my Bixler2 uses a separate channel for each flap servo because they are mounted like aileron servos; asymmetrical. You will not need to do any mixing like in my video. Try my above suggestions John. Bob

[@franciskrueger7717]

Very clearly said. I follow exactly 1 by 1 same dialed numbers, because i have a problem on one side of the flap servo and im new to the spektrum tx's from turnigy and your tutorial helps me a lot thanks

[@bobclarie]

You're very welcome Francis. Let me know how your RC project is coming along. Bob

[@bradleytheron433]

This video helped me so much!! Thank you.

[@bobclarie]

You're most welcome . . . Keep us posted & soft landings . . . Bob

[@thrashinggamer]

Hi, so I’m quite confused. I recently picked up 3 amazing condition rc gliders for free and the asw28 style one has a confusing servo configuration in my opinion. In total There are 4 on the main wing, the wires come down and then they get split into 2 DuPont connectors. So does that mean one of the connectors will control both flap servos and the other will control both ailerons? Long story short, there is 2 servos per 3 pin connector. Sorry if this is confusing, it’s hard to explain in a comment section.

[@bobclarie]

Yes, it is common for two servos to be combined with a "Y" adapter. A "Y" adapter combines two servos into a single plug. This is common on aileron servos. Aileron servos are mounted asymmetrically, allowing them to move in opposite directions at the same time. Regarding the flap servos. Typically, flap servos are also mounted asymmetrically, however, they must move in the same direction, unlike the aileron servos, hence, each servo would require it's own receiver channel. However, if the flap servos are mounted symmetrically (same physical orientation), then you could combine them with a "Y" adapter and use only one receiver channel. Let me know if I can be of further help. Bob

[@chefjness]

Bob this is the result of those settings. My toggle switch at 0 (Norm) flaps are all the way down. Toggle switch at 1 (mid) is mid and toggle switch at 2 (Land) flaps are in full up position. Thanks John

[@bobclarie]

OK, your servos are running opposite than mine. Two options here. Swap the settings for "Norm" and "Land" in "flap system". Or, go into "Servo Setup", locate your flap servo, select "travel" go to "reverse". Go down to the bottom and change the current setting of "NOR REV". That should do it. We're getting close, I think. Bob

[@chefjness]

Thanks so much for this. I just bought an eflite maule and I have the dx7s. Is there a flap reversing option. My flaps are down in position 0...and up in position 2?

[@bobclarie]

Hi John, if you review my video again, around 9:50, you'll see where you can change the servo from NOR, to REV. Try changing those settings and you'll find the correct settings for the flap settings. Keep us posted on how your eflite maule is coming along. let me know if you have any further questions. Best. Bob

[@chefjness]

Bob. Thanks! Will do!

[@rczone9830]

thumbs up bobclarie that was awesome video....very easy to understand how to do it...

[@chefjness]

Bob....I am moving inthe right direction but still stuck. on position 0 flaps are now up which is good. Move to switch 1 and they lower. But then when i move to switch 2 they go back up instead of lower one more time. I also lost rudder control and cant figure that out. I checked the rudder plug and its plugged in. Any thoughts? Cheers John

[@bobclarie]

Hi John, I haven't flown fixed wing RC for quite awhile; been flying my Mavic Pro quad. The battery in my DX7s is dead, will charge it back up, and review the setup in my DX7s once charged up. Can you tell me what receiver you have? and what channel each servo is plugged in to. We'll go from there. Bob

[@chefjness]

Bob....another DX7 question....how do I adjust my throttle stick so it does not start the motor as soon as I move the stick just one little click up...? Thanks Bob!

[@bobclarie]

Hey John. Try adjusting the throttle trim. There is a toggle switch just to the right of the throttle stick. This switch can be pushed up (to increase throttle neutral position) , or pushed down to decrease throttle neutral position. Give that a try and let me know if that works. Bob

[@bobclarie]

John, did the throttle trim work for you ?

[@shalikaperera2395]

This transmitter can use for big rc airbus ? (Please reply )

[@bobclarie]

Can you give me details on the " big rc airbus "

[@carlosmci01]

Hi Bob. Great video. I have a dx 18 and it helped me a lot, thanks a lot!

[@bobclarie]

You are most welcome Carlos. Keep us posted on your progress, and please post your flight videos. Greetings from San Francisco. Bob

[@chefjness]

Hi Bob. I love quads. I have the Mavic Air. I have rudder control back which is great news. Still trying to figure out the flaps though. Thanks John

[@bobclarie]

What receiver are you using, and what channel is each servo plugged in to ? The Mavic Air looks like a nice aerial photo platform. Go into your "function list" then enter the "flap system" and tell me the values under "Flap" for "norm" "Mid" "Land" "speed" and "Sw". Are there any values under "Elev" ?

[@chefjness]

Hi Bob...I will give it a go tomorrow. I was out tonight.

[@chefjness]

Bob!! We got it. Thanks so much!

[@bobclarie]

Just curious John . . did you swap the Norm and Land settings in the "Flap System", Or, Reverse the travel of the flap servo in "Servo setup" ? ?

[@chefjness]

@@bobclarie i reversed the servo and then discovered I could adjust the settings while connected to the plane. This allowed me to see the changes in the flaps as I made changes to each percentage.

[@bobclarie]

Nice John, you're in business . . make a video of your new eFlite Maule; looks like a nice plane. Bob

[@aldoyosbel1728397263]

Why my flpas servos are not even. It does start even in neutral, it twisted on middle position and still twist on 3er flaps position

[@bobclarie]

Make sure the flap servos are identical. The linkage setup must be identical also. Lastly, make sure the % of travel is the same for each flap servo channel. Bob

[@aldoyosbel1728397263]

All my servos are the same, also I try different servos brand and are not lane up, also try different reciver, it got me crazy

[@bobclarie]

OK, confirm that your servos are identical, the physical linkage is identical, and the % of travel is the same. What transmitter do you have ?

[@bobclarie]

Can you explain what you mean by "twisted"

[@aldoyosbel1728397263]

They are not lane up

[@chefjness]

not sure yet. This plane seems to bring up question after question. Are you familiar with Eflites AS3x technology?

[@bobclarie]

Kinda, I have an eFlite UMX Radian with AS3X controller. The controller simply tries to keep the plane level after you center the sticks, pretty cool.

[@chefjness]

Correct. My plane sits on a plane stand when I am working on them and my control surfaces are all set to neutral at this point. When I put the plane on the ground and its sitting with its tail dragging the elevator (as3x) wants to orientate in the down position. If I set the elevator control surfaces to neutral while the plane is tail dragging the elevator will have opposite effect once the tail lifts off the ground. LOL...I have no idea if this makes sense...

[@bobclarie]

This sounds normal John. Did your AS3X receiver come pre-installed in your Maule? The mounting orientation of the receiver in the model is crucial . If you haven't already, I strongly suggest that you go through the AS3X Skektrum tutorials on KZbin . kzbin.info/www/bejne/gp-8mn6dp7GSmLc It can get a little complicated. You need to check and make sure the AS3X gyro corrections are moving in the correct direction. You also need to make sure the control surfaces are moving correctly relative to the stick movements. Do you have multiples modes on your transmitter? Anyway, I have a very simple AS3X model, eFlite UMX Radian, it's only 3 channel, in my case, I just bind and fly; no fancy setups. Let me know how it's going. Bob

[@johnmainville6512]

Thank you!

[@bobclarie]

You're welcome!

[@colinliffen1048]

diagram of wiring and tx not clear

[@chefjness]

Thanks again. It came with a bad rudder servo. Amain is sending me out an upgrade! Are you in northern california? Iam in San francisco.

[@bobclarie]

You're welcome John. I am in Richmond, CA., east-bay San Fran. Thanks to you, I have re-kindled my interest in fixed-wing RC which is much more challenging than flying the fully auto DJI drones. Do you belong to an RC club? At last count, I have 23 fixed-wing RC models; looking to donate a few; running out of storage room. One of my favorite RC models is an RC Eagle, I think it was from BP Hobbies; in flight, it looks just like a bald eagle; in fact, hawks and eagles flying nearby will try to attack it. I have an eFlite mini radian, which also has the AS3X stabilization like your Maule. I have a favorite nearby flying spot up on Pinole Ridge. Soft landings. Bob

[@chefjness]

@@bobclarie I know what you mean...the fully autonamous drones are amazing tech....but super easy to fly. That's why I just got a helicopter...the blade 230s V2. Helicopters can be a handful. No, I dont belong to any clubs. I usually fly at Sierra point in Brisbane. The Livermore electrons does look like a great club...just far from me.

[@chefjness]

Bob....that helped....thanks!

[@bobclarie]

Great ! When will you maiden your Maule ?

[@chefjness]

Bob...took out the Maule for its Maiden early this morning. No flight footage....my boys were still asleep. Great, great flying plane. 4s power, 3000mah. Pulls to the left on take off though which is a little uncomfortable. I kept having to input opposite rudder to counter that. I did not want to set the trim on the controller to counter because I think that would be bad once airborne.

[@bobclarie]

Congrats John. Take some footage if you have a chance, I'd love to see the Maule in flight. So, does the Maule pull to the left in straight and level flight with a cruise setting on the throttle ? Have Fun

[@chefjness]

Thanks Bob. I will get footage for sure. At slow taxi it goes straight. Once I throttle up it pulls to the left and then takes off. Once in flight she is silk smooth and straight as an arrow.

[@bobclarie]

OK then, straight as an arrow. I don't have much experience with ground take offs; most of my planes are hand launched. I don't have the advantage of a smooth and level surface for take offs. I fly atop Pinole Ridge and don't have smooth level surfaces up there. I fly general aviation planes. As you may already know, there is something called the "P factor", or left turning tendency of a plane during take off. Even in the small planes that I fly, like the Vans RV-12, or Cessna 150, etc, you need to hold quite a bit of right rudder to keep the plane going straight during take off. Not sure if this could explain why your Maule is wanting to go left during take off. Take care. Bob

[@rczone9830]

Hi bob...sorry it's so long time. I need your help again. Now I have dx8 gen2 transmitter, and very tens , how to fix my flaps on dx8 gen2 transmitter. Please help n reply me. Thanks

[@bobclarie]

Sorry so long to respond, must have overlooked. I'm not familiar with dx8, however should be similar. What kind of problems are you having . . hopefully you have fixed it by now. Bob

[@rczone9830]

@@bobclarie hello bob. I am using 2 servo for ailerons with Y cable. And using 2 flaps servos with Y cable. How to program it ???

[@bobclarie]

@@rczone9830 If you want to use a Y cable for your flaps, you need to have the servos mounted opposite of the aileron servos; i.e., mount them in the same orientation. Aileron servos are mounted in the opposite orientation. Hope this helps. Bob

[@rczone9830]

@@bobclarie how I can share my servos picture I wanna discuss something

[@rczone9830]

@@bobclarie actually my problem is that I installed the servos, now I can't change the orientation. But can the fix reverse y cable some kind of. Please make sure the easy way to talk for further help. Thanks Regards

[@rczone9830]

oohhh thanks bobclarie so sweet... you really understand my problem, please give me your Facebook contact. thanks to support me. I have same receiver and transmitter so now I can easily setup my flaps. 😍

[@bobclarie]

You are welcome. Hope you have success in setting up your flaps. Happy to help. KZbin has helped me so many times. I like to return the favor. Let me know if I can help further. Please tell me . . what is your name, and where do you live. Take care, Bob, near San Francisco, California.

[@bobclarie]

Forgot, my Facebook; facebook.com/robert.young.165

[@rczone9830]

bobclarie yes bob my Facebook account name is Salman Razi. please send me friend request. I want to talk on Facebook for further corresponding. thanks bob

[@rczone9830]

bobclarie hello sir. ..sorry for late reply. I was very busy on job. I want to talk with you on call. please send me your number. I finally made my bixler perfect to your best support. you're so sweet. how can we talk? reply me

[@bobclarie]

Salman, I am very pleased that you now have your Bixler 2 flaps working properly. Please make a video demonstrating it in flight. If you wish to communicate with me directly, please PM me through Facebook. All the best. Bob