Out of Sync electric motors

[Peter Costello]

I am building a WW11 Mosquito but can't get the motors to start at the same time. I have borrowed a rev counter and the second one starts when the first is at about 5000 rpm (4 clicks on tx). When at full speed the first is still 1000 rpm in front. Advice has been to disconnect one of the red wires from the servo (confusing signals ?) but it doesn't seem to make much difference. I am using seperate but identical esc's and motors. Any ideas?

[Chris Dickens]

Peter

I'm assuming you are using brushless motors since there is no point in using two controllers with brushed motors.

How are the two controllers connected?

Y lead or two separate mixed channels?

If Y leads try swaping the controllers around. if all is then OK great but if the same motor is still slow then it must be missmatched motors, if the other one is slow then its one of the ESCs.

If you are mixing again swap the ESC's but if no change then try playing around with the mixing and throws on each channel to see if you can balance them out.

Chris

[Patmac]

Peter,
are both escs programmed identicaly ?
If you swap around as Chris said & the characteristics go with the escs that could be the problem.
Which esc/motor combo are you using ?

Pat.

[Tim Mackey]

removing one red wire will only result in one BEC connected not two.....it willnot affect the proportional speed control of the unit.

[Peter Costello]

Problem solved. Thanks for all the advice guys - quite a learning curve! Programming was the key. Shop advice (BRC Hobbies - thanks) was to reprogramme from default settings to: Outrunner, timings and finally setting max speed (my own idea). It was the latter that did the trick. I am glad this was the answer as dismantling to swap esc's would have been a real pain. Now 1 step nearer actually flying!

Thanks once again for your advice. This really is a good forum for plugging into experience.

[Alan Brock]

What wingspan is your Mossie and what motors did you fit?