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Old 08-25-2007 | 04:02 PM
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Default Would this work?

Do you think this would work?...If i swap the red and black wire on one half of a y-lead, would it reverse the servo?
I'm asking this because my transmitter wont let me trim both servos together (FF6)

Also, if that doesnt work, would the servos move together if i use a y lead with servo reverse? Would it move 100% together, not differently?

Thanks
Old 08-25-2007 | 04:14 PM
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Default RE: Would this work?

No that will not work. Each wire has a unique purpose, its not the same as reversing leads on an electric motor.

You either need a reversing Y Harness, Hitec progammable servos and a programmer or if you have a computer radio you can usually mix dual elevators on 2 seperate channels. If you do the latter you can use the transmitter to reverse the servo then just use the mix.

What transmitter do you have?
Old 08-25-2007 | 04:30 PM
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Default RE: Would this work?

Futaba FF6
Old 08-25-2007 | 07:20 PM
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Default RE: Would this work?

I think that is the 6XA or 6XH. Its a computer radio but I am not sure if it has mixing for dual elevators. I think it might but I cannot remember for sure. looking on the futaba site it does have mixing, it will just depend on whether or not you can use channel 5 in a p mix. Are you using seprate channels for you ailerons?

You know, something else you can do is simply rig up for a single elevator servo if you must. You just place in near the rudder servo and run a pushrod back to both elevator halves. We do it on pattern planes all the time. www.centralhobbies.com sells a nice lightweight systems called DEPS (Dual Elevator Pushrod System).
Old 08-25-2007 | 08:55 PM
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Default RE: Would this work?

Take the servo apart and reverse the leads on the pot and the motor,,, Yeah old school !
Old 08-26-2007 | 02:34 AM
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Default RE: Would this work?

my transmitter does have mixing, but it i cant trim both of the servos at the same time using the normal elevator trimstick. I have to use a flap knob to trim one and use the normal elevator one for the other. Is there a difference between using channel 5 instead of ch 6? As im using channel six for mixing now.

Also, no im not using separate channels on the aileron
Old 08-26-2007 | 03:35 AM
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Default RE: Would this work?

A reversing Y harness will do the trick. I did this on a couple planes until I got the 9CAF. I can finally toss those reversers away. Cental Hobbies sells a Bellcrank that easily might solve your problems. I am running them in two planes succssfuly. http://www.centralhobbies.com/contro.../Bellcrnk.html
Old 08-26-2007 | 11:09 AM
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Default RE: Would this work?

channel 6 is for ailerons so the flap knob will be trimming it. you need to use the gear channel whatever that may be on your radio.

or do this with a normal y harness



you can see that the elevator servos have the pushrods coming off opposite sides. on off the top and one off the bottom. the geometry is weird but surface travel is the same on both sides. and this saves money from a reversing y harness.
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Old 08-27-2007 | 10:51 AM
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Default RE: Would this work?

The 6X has 2 programable mixes that you can use as you see fit (P1 and P2). You can mix channel 2 with 6 at 100% but you have to inhibit flapperons, and flap trim. Set channel 2 as master, 6 as slave. Make sure that your ATV for channels 6 and 2 are the same.
Depending on the servos you're using, if you have a jr servo just laying around you can use that instead. JR sport servos turn the opposits of Futaba / Hi Tec

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