receiver set up HELP for newbie

[Robman]

Which channel does the gyro plug into? and also the other three servos as well?
Thanks Rob

[DavidH]

It will depend on which radio system your using.
Futaba
Ch 1 left/right cyclic
Ch 2 fore/aft cyclic
Ch3 Throttle
Ch4 Tail rotor/ gyro
Ch 5 gyro gain control
Ch 6 Collective

JR and Airtronics are a little different. Hitec will be the same as Futaba.

David

[Robman]

Thanks I'm using futaba..My futaba gyro is a gy 401 and it has two plugs on it one black and one red ..What is the red one for?
Thanks

[WayneBrown]

One has three wires, the other has one.
The single wire will plug into ch5 on the rx, and it changes from Heading hold to normal mode.

[BigVanVader]

raptortechnique.com has some great info on setting up the GY401 with several different radios.

[tnreefguy]

not to be mean or anything but it sounds like you need to do some reading and research on radio setups etc. Did you buy used stuff? Are you close to any rc clubs? I would suggest that you try to find some local heli pilots or attend a flyin. Lots of help at those places. There is a local flyin at tupelo mississippi on the first weekend of oct. I will be there and big al, hotshot charlie, maybe DanW and some others bring your chopper, notepad and get ready for a good time.

[Robman]

This is just the first one I've built from scratch..Lamebird got me started on helis but now he has been transfered to another state and no one around here flys helis..
I.ve got it all hooked up and the tail rotor does not come back to center after pushing the stick to the right.. I checked all the linkage and lubed it all up and it works smooth... the servo arm is coming back to center from both directions...Hitec hs55 servo...

[R-4-L]

robman, in avcs mode (ie gyro gain switch -=upper left back switch=-) the tail blades won't go to neutral, switch to Normal mode with that switch, and u'll notice that the blades go back to neutral when you leave the stick

just remember before switching ON the heli's receiver, keep the switch at AVCS mode,

but, i am afraid tnreefguy is correct, this is really dangerous and could cause personal injury. please read your transmitter's manual carefully, and the gyro's manual too, those manual you can download from www.futaba-rc.com too.
take it from me, I KNOW the dangers of this hobby if your not sure what your doing..

if you can't find anybody around to help, please go to www.raptortechique.com , it will teach you everything from scratch!

be safe!

[WayneBrown]

Rob, You have my number, call if you get stuck!
You can also look up teeroy and Hotshot Charlie, who are relatively close if you need hands-on help.
I explained how to setup AVCS (heading hold) over the phone, and we were going to get deeper involved in the setup after you got home.
Once you have the gyro initialized in AVCS, you can switch to normal mode by flipping channel 5 the opposite direction. In this state the tail rotor will go back to center from an input. It seems weird, but the AVCS mode waits until a direction change is sensed before moving near center, at least while the machine is on the bench.
Look at the purple 'skype me' icon on a lot of the posts, You can use a program as a voice chat, and get this info 'real time'.

[Robman]

I'm using a futaba 7C radio and gy 401 gyro..

[Robman]

I'm having a very hard time getting this gyro and transmitter setup...I'm using a futaba 7c and I'm just lost as a goose...Do I need to be in H-1 or h-2 os h-3...Thers's so many questions I can't rember them all...I don't understand what most of this stuff means..Can anyone make it more simple for me?

[tnreefguy]

The first thing we need to know is what kind of helicopter are you setting up. By that what manufacture and model.

The stuff you are refering to looks like a swash setup but I am unfamilar with the 7c. Post back soon. I still recommend that you attend the event oct 2 at tupelo. Look in the event forum. Nothing like hands on training.

[Robman]

I wish I could go but I work on weekends..I'll try my best to come to the flyin if I can..I'm building an ark X-400 electric..it's almost the same as the Trex.. The servos are hitec hs55 and 6 channel gws receiver an gy-401 gyro..
I've been flying airplane for many years and seting up and airplane is childs play compared to a helicopter..

Thanks for all your help

[tnreefguy]

Is that heli ccpm or ecpm? I know the Trex comes in both versions.

[Robman]

it uses 4 servos if that helps..
Thanks

[tnreefguy]

Well not really one of those servos is for the rudder. ccpm=three servos move together to move the swash plate right left, forward backwards and up and down. ecmp means that there is only one servo that moves it left and right, one that moves it forward and backward and one that moves it up and down. The trex V3 is ccpm the V1 and V2 I believe is ecpm. My freya is ecpm while my fury extreme is ccpm. Once you decide what you got then you have to set what swash setting in your radio to select.

[DavidH]

Check out this thread.
http://www.rotory.com/ubbthreads/showflat.php?Cat=&Board=UBB2&Number=65592&page=0&view=collapsed&sb=5&o=&fpart=1

Rob,
If the swashplate has three balls on the outside that are spaced 120 degs apart.
You will need to use swashplate mode HR3, this should be the one that is for 120 deg eCCPM. H3 in the 7C is for 140 deg eCCPM. There is still 3 balls on the outside of the swashplate. But the two forward balls are spaced 140 degs from the rear one.

If the swashplate has 4 balls on the outside that are spaced 90 degs apart. You should be using swashplate mode H 1, This mode is for mCCPM setups


All of these setups still use 4 balls on the inner ring of the swashplate.

David

[Robman]

This is the one I got http://www.x400tuning.com/


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5997273017&ssPageName=STRK:MEWN:IT

What servo do I need for the tail?
Thanks

[DavidH]

You will need to set the swash mode in the transmitter to H1 for that heli.
That is mCCPM.
I would get the fastest and strongest micro servo that is available to use on the tail. I think most of the Trex owners are using Hitec servos on the tail also. Set the GY to NON DS mode. The GY 401 only needs to be in DS mode when using Futaba digital servos on the tail. With other brands of servos where digital or analog, set the switch so it is NOT in DS mode.

David

[Robman]

Daivd
Are you going to the Tupelo flyin? I work on weekends but I'm going to try and be there.. Do you think many people will be there friday? Who do I ask for help? I stayed on the phone with lamebird (Wayne Brown) for an hour tonight and got pretty close but theres's still alot of radio setup to do.. I would be will to pay someone to help me..

Thanks Rob

[DavidH]

Rob,
Not sure I will make the Tupelo event. But if you go there will be someone there that can get you going. Yeah this stuff seems difficult at first when your a rookie. But you will get the hang of it. Just pay attention when someone is helping you. Don't be shy and ask questions if you don't understand completely. The only stupid question is the one you don't ask. We all started out just like you. We all learned by asking questions from more experienced pilots. So just ask when you need help. Someone will know the answer.

David

[tnreefguy]

And a good pilot will not charge money to help.