Hey guys, I currently have a hangar 9 alpha trainer 40 with a six channel receiver. I am pulling this and the four servos out of the plane and am going to use it in a goldberg tiger 40 plane. I ordered it from tower hobbies with an additional tower hobbies servo. Will this servo plug into my jr receiver? I think it will because it said the end is standard. The main question I have: the plane needs five servos total. 2 are used for ailerons, in the description it says dual ailerons. Is this still 1 channel? With a 6 channel receiver am I going to be able to run the throttle, rudder, elevator, dual aileraons and battery? Thanks alot for the help. Matt

Yes, a 6 channel receiver is plenty for what you want to do. You will/can run the aileron servos from one channel in the receiver, plug a Y-harness into the aileron channel on the receiver and then both of the aileron servos will plug into each end of the Y-harness. With this setup you only need 4 channels of the receiver. Even if you use a seperate channel for each aileron (by using a computer radio) you will still have enough channels on the receiver because you only need 5 channels for the servos.

Hope this helps

Ken

I am going to be flying with the JR sport s 400 radio that came with the trainer. If I have to use seperate channels for the ailerons, can I do that with this radio? It isn't a computer radio. It is a four channel radio. Or am I going to need to go with the y harness? I bought the arf version of the plane, do you think it is going to come with a y harness? Thanks for all the help. Matt

Ok, no you can't do that with this radio. You are going to need to use a Y-harness for your ailerons with this radio.

Ken

Thanks for all the help. Do you know if the tower hobbies servo I ordered will plug into the jr receiver and work ok with everything else? The servo # is LXUK84. Matt

It'll work fine. At most you MAY need to remove a polarizing tab from the connector but if it's a "universal" plug you won't.

Sorry for all of the questions guys. If I have my jr receiver and servos, do I need to have a jr radio to control it? Can I buy another 6 channel computer radio as long as they are on the same frequency, will this work? I don't want to spend all the extra money on servos and stuff if I don't have to. Can radios be bought like this? Please post the stock number if there are any on tower hobbies sight. Matt

I was looking at getting the tower hobbies 6 channel comp radio. Is this decent or not?? It comes with the reciever but no servos. If I can plug my jr servos into this receiver and have it work I would order it. Can this work? I just don't want to have a failure in the sky and wreck a new plane because of something studpid. Matt

Right now I don't want to buy another radio. The receiver I have has two slots open, one that says aux 1 and one that says gear. Can I plug the second aileron servo into one of these and have it work without having to wait on a y harness or am I still going to need it? Matt

No, you can't just plug the second aileron into a spare channel. You have to have a transmitter that is capable of "talking" to that aileron servo through that spare channel. With a basic 4 channel radio like this you will need to use a Y-harness.

Ken

Thanks a lot Ken for all the help. Do you have any experience with the plane I am getting? I ahve heard that is real decent and will fly like a trainer or perform a lot of stunts if you want it to. Matt

It's one of the better trainers out there. You'll do quite well with it. Trainers will usually do a lot more aerobatics than most people give them credit for. So you should have plenty of fun with it.

Ken

One more question, then I promise I am done. lol If I get a y harness and both servos are plugged into it, won't they both run the same way? The servos need to run in the opposite direction, or will this automatically happen? Matt

You are correct in that they will both turn the same direction, but this is what you want with ailerons. Look at the diagram I have attached. You will place the pushrods both on the outside of the servos (or the inside as the case may be). Now when you move the ailerons both servos will turn the same direction, moving one aileron up and the other one down. With both aileron servos moving the same direction it's the same identical movement as if you had only one aileron servo moving both ailerons, one side moves up as the other side moves down.

Hope this helps

Ken

If for some reason (space limitations or construction restraints) you HAD to come off the same side of the servo, you could obtain a Y-harness with a servo reverser built into it. While this would fix the problem it would also give another possible failure point. Keep it simple is always the best way.

The Tiger is a great airplane - be prepared to fall in love!

As for the servo, Jr plugs will fit into a Futaba Receiver, but Futaba won't fit into a JR Receiver because Futaba adds a small tab to one side of the plug.

The good news is - IF your servo comes with Futaba plugs, you can grind/file/sand the tab off and it will fit a JR

Mistine, up there in the discussion, you have a lot of questuions concerning servos. Most all servos are interchangable with some small amount amount of applied X-acto technology. Keep the black (brown) to black and red to red. With old Airtronics you need to lift the brass restraints and slide out the black and red and change their positions. They are then the same.
One other item if you are relatively new and have not accumulated a bunch of radio gear. Some radios, like Futaba (Tower) and standard Hitec have what is called "Negative" shift whereas JR and Airtronics (Sanwa) have positive shift. The transmitters and receivers don't like each other and don't speak socially.
Now Airtronics and Hitec have a couple transmitters that have programable "Shift Select". JR doesn't provide that. I do not know about Futaba. Hitec also makes some selectable receivers. I like 'em. There is some new and better stuff coming on the market.
My main point is that it is a bad thing and I do remember it well when a transmitter goes bad, and you send it in for repair, and there you sit with two nice models to fly, each ready to go, but only one can go because one cannot be flown because the one transmitter can't talk to it. It's a bunch of trouble to be changing receivers at a flying field. [:'(]
Just my thoughts as I read your thoughts about having a JR and thinking about a Tower, well I would think about compatiable equpment for the time being. If nothing else, those Hitec receivers are as good as money can buy and just switch a plug around and any transmitter is good to go. I have about 15 of the little critters.