phjoker

My Feedback: (4)

I have a 6 channel radio I am tryin to get the dual servos on my elevator working correctly. Righ now I have them pluged into channel 2 and 6 and mixed the two
The servos work in sink with each other, but when I go to trim my elevator servo only the one on channel 2 works with the trim slide. not the one that is pluged into chaneen 6. If I got a dual servo reverser will the trim on both of my servos work with the trim slide for channel two?

redfox435cat

yes the duel servo reverse with trim both. the problem is the the programming isn't set to trim channel 6. This capability isn't available until you get into like the 9C series radios.

the best way now-a-days to do duel servos with a standard radio is a pair of hitec digital servos and the hitec digital servo programmer. The problem with the duel servo reverser is the servos will be very difficulty to get to match each others movements

DMcQuinn

My Feedback: (13)

Tell us what make and model of transmitter you have. With the JR 10X transmitter for example, there is a setting that you tell the mix whether to include trim in the mix. However, with some transmitters, this is not possible. I have flown airplanes where the mix only works on one side and they work fine. You set the elevators to match each other at neutral. Fly the plane and adjust the elevator trim. Let's say that after you land you see the left elevator is slightly up. You add a little up trim to the right elevator (by unscrewing the clevis) until it is also a little up. Now fly again. As long as the two elevator halves are close you will never know the difference. You might think that with one elevator a little higher or lower than the other that you would get some rolling action. But in my experience this does not happen. At least not enough that I can detect it.

If you use a reversing "Y" connector, the trim will obviously affect both servos, so this is in some ways a better solution. Personally, I'd leave it the way it is and avoid the reversong "Y cable. One more thing to go wrong.

phjoker

My Feedback: (4)

I have the futuba 6exas radio

Tall Paul

An ordinary Y-harness should work.. why would you need to reverse one?

DMcQuinn

My Feedback: (13)

If the servos are mounted on the fuselage sides, one needs to rotate clockwise and the other needs to rotate counterclockwise. So you need either a programmable servo or a reversing "Y" harness. Or do as I suggest and use two channels on the receiver and don't worry about the trim. And there is another choice. You can put one servo above the elevator on the left and the other servo below the elevator on the right. I have done this on my latest profile (OMP Edge) and it also works well.

agexpert

My Feedback: (1)

Yup...you need a reversed servo.

See if anyone at your club is handy with a soldering iron. Most non-digital servos can be reversed manually.

phjoker

My Feedback: (4)

the servos are mounted on a servo tray inside the fuse.

Tall Paul

All you need then is to have the servo arms pointing in the same direction, and a conventional Y-harness.
The bottom setup in this drawing.. Note the elevators are rotated out-of-plane in the drawing for clarity.

IL2windhawk

When a Y-harness is used to control two servos, is the voltage to each servo get cut in half?
That is, does each servo operate at half power?

Fredsterman

Have you tried turning one of the servos 180 degrees in its mounting location?
That should,( I think), mechanically reverse the travel direction, without messing with the wiring or radio settings.
The reversed side will need longer control rods though.

redfox435cat

no, its all wired in parallel so everything has the same voltage.

phjoker

My Feedback: (4)

Thanks For aal the help guys!!!!! I was able to cut another servo hole in the fuse I moved the one servo over to the other side got the servo horns on the same side put in a y and it works fine. Thanks again for all the answers.

KC36330

the ONLY thing that will do is require a longer control rod, common sense ought to tell you it will NOT reverse the servo. Now if you were to flip it over (top to bottom) it would reverse it but makes it a bit difficult to install that way.

kc

KojakDave

My Feedback: (4)

I think he meant to reverse the servo arm. In other words, when the control input is given the arm would push, but if the arm were on the opposite side of the servo when the same input is given, it would pull.

JoeAirPort

My Feedback: (41)

Voltage is the same but current is double through the common leg of the Y. So that leg has to carry double the current than if you used a single extension with it's own servo channel.