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Old 12-29-2004 | 07:57 PM
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Default Is this possible??

Was wondering if this is possible. Most glow aircraft have 2 servos for the wing, 1 for rudder, 1 for elevator and one for throttle.
Thus, you need an rx that has 6 channels if you count the connection you need for the rx battery.
I'm wondering if you have a hitec 555 rx, thats a 5 channel rx for all you newbs, could you use a "Y" connector on the battery and
also the left airleron to connect to the 5th channel slot on the 555 rx? Would this work? I'm trying to save myself from buying another
rx....

Dave...
Old 12-29-2004 | 08:12 PM
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Default RE: Is this possible??

What kind of model are you flying?
Most models put the Y-connector on the two aileron servos, unless you using some mixing with a computer TX.
But yes your way may work if your RX will allow it to work! Test well before flying.
Old 12-29-2004 | 08:14 PM
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Default RE: Is this possible??

Yes. This is often done. I think it is even mentioned in the paperwork that comes with the 555 RX.
Old 12-29-2004 | 08:29 PM
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Default RE: Is this possible??

Also, look here:

http://www.rcuniverse.com/forum/How_...1914817/tm.htm
Old 12-29-2004 | 11:36 PM
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Default RE: Is this possible??

Not just the 555 but lots of rx have just the amount of plug ins as channels. Ex. a 5 channel rx only has 5 slots a 7 channel rx only has 7 slots.

Generally on the last slot it will say "channel 7/Batt". You just use a y to connect them. However, it does generally make more since to connect the ailerons with a y since you have to plug them in when you put the wing on. Its easier to have them plugged into a y harness and when you attach the wing you only have to plug in the harness and not each aileron seperately.
Old 12-29-2004 | 11:46 PM
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Default RE: Is this possible??

could you use a "Y" connector on the battery and
also the left airleron to connect to the 5th channel slot on the 555 rx?
This would depend on the Tx you are using. If you can't program the Tx for left aileron on channel 5, this won't do you any good.
Old 12-30-2004 | 06:17 AM
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Default RE: Is this possible??

I have a Futaba 9C radio. I do have a couple of models where each aileron has its own servo. One servo goes into the first channel and the other aileron goes into the 5th channel. However, if you "Y" the two aileron servos, and put this connection into channel one of the rx, how are you going to get the ailerons to move correctly? Example....if I turn left, wouldn't both servos move the same way thus
making each aileron move up? Or, would you position the servos so that the servo arms move opposite?

Dave...
Old 12-30-2004 | 06:40 AM
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Default RE: Is this possible??

Dave,
Yes to your question and your answer. If using a Y you'd need to set up the linkage properly to allow for this. But, you can also use a Y connector to plug the battery and and one servo into any channel on the receiver.
Dennis-
Old 12-30-2004 | 07:29 AM
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Default RE: Is this possible??

Dave.....

Let me expand on what DB said. Yes, both the servos move in the same direction. But you generally install wing servos either surface or on a plate. Surface mount, the servo arms would come off opposite sides of the servos. So when one arm moves foward, the other moves back. With plate mounted servos, they're generally mounted either facing each other or away from each other. Same deal as with surface mounts. The only time the servos would ever be mounted pointing in the same direction, or with the arms coming off the same side, would be for flaps. Sorry if this dosen't seem to make much sense. As soon as you look at an airplane with dual alieron servos it will fall into place.


Andy
Old 12-30-2004 | 08:05 AM
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Default RE: Is this possible??

Or, look at a wing with a single aileron servo. Each aileron torque rod is linked to one side of the servo arm. You could do the same thing with two servos in the center of the wing, side by side, turning the same way, just with a one-arm servo arm. Or, you could move the servos out to mid-span of the wing. Same story.

As long as the linkages are attached to the outboard side of the servo arm, and the servos turn the same way, the ailerons work as intended.

Good luck,
Dave Olson
Old 12-30-2004 | 08:26 AM
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Default RE: Is this possible??

the reciever connections are both on a buss. all positive connections are connected together on the positive bus and all negative connections are connected on the negative buss
Old 12-30-2004 | 09:05 AM
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Default RE: Is this possible??

Here's a graphic example of what Dennis and Andy said:
Attached Thumbnails Click image for larger version

Name:	Xv63518.jpg
Views:	22
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ID:	208294  
Old 12-30-2004 | 01:05 PM
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Default RE: Is this possible??

Thanks to everyone who replied! DUH!!! Makes sense to me now...lately, I've been sniffin too much epoxy and CA!!!
Setting up a hangar rashed U Can Do 46 for the club fly-in this new year's day. It was one of the first arf's I built and it looks it!!!!
Never flown yet but has 3 tears in the covering on the rudder, the wood piece that the mains get screwed to and which has a hole for the
wing dowel busted off while carrying fuse thru a doorway. Anyways, thank you to all!!!

Dave...
Old 12-30-2004 | 01:26 PM
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Default RE: Is this possible??

Once again Minn to the rescue with a great graphic. Thanks!


Andy
Old 12-30-2004 | 01:49 PM
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Default RE: Is this possible??

And in the future, don't sniff epoxy or CA... AMBROID is much better

Disclaimer: This is a joke, it is only a joke, Do NOT Sniff ambroid, or any other glue, solvent, or household product. Void where prohibited by law. Substitutions, add 50ΒΆ
Old 12-30-2004 | 02:45 PM
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Default RE: Is this possible??

Minn, how do you make all those pics?
Old 12-30-2004 | 05:18 PM
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Default RE: Is this possible??

Most of them (like that one) I draw in Photoshop
Old 12-31-2004 | 08:04 PM
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Default RE: Is this possible??

I have a couple of 555's.
Channel 5 is typically for something such as retracts. If your transmitter allows the use of channel 5 for something else at your discretion, cool.
Your statement of a typical wing having two servos usually doesn't require another channel. Just use a "Y" connector to connect both servos to the same channel, providing that the linkage is set up properly.
I have two servos on a few of my wings. In one case it was to experiment with Flaperons on a trainer. This required the use of another channel. This was dictated by the transmitter, and required a receiver that would accomodate this application. In this case it required the use of channel 6 for the second aileron servo. Channel 5 is still reserved for something such as retracts. I use it in this particular model to to release a parachute jumper for one of the other fliers at the field and in our airshow.

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