Spoiler

Mike, I am running the original F90 (Moki 135 powered actually!) with Hitec 435HB servos on elevator, a JR 770S Rx and a JR 9x Tx. Getting the throws on the elevators to match up and remain consistent throughout the travel is almost impossible despite the programming options on the 9x, or am I missing something? The elevator control arms are different lengths which must cause the problems. Can I programme the discrepancy away with my Tx. Help please!

Gus155

Spoiler , you should try get the elevator control horns and servo arms the same length. had to fiddle a bit setting up the dual elevator servos on my extra.( had similar situation on the extra )
May be an idea to try and centre the servos as best as possible with out using the subtrim. you might have one servo over its mechanical limit.
hows your 260 doing with the Moki 210?

Spoiler

Hi Gus - on the F90, the servos are not equidistant from the elevators so the rods are a different length to start with. I had no probs with teh 260. It ahs flown about 5 times so far. The moki has ben great - easy starting and reliable. It does not have incredible power but its more than adequate and its still running in...

Mike - any tips please?

MMcConville

My Feedback: (4)

You have t use servo arms of the same length. Start there. The pushrod length should not effect the throw left vs right as long as the geometry is equal.