I have a Top Flite .60 size P-51 Mustang. Futaba 7C Tx, Futaba R168DF receiver, new 4.8V battery, Futaba S3004 Servos.
I have the flap servos set up on the 3 position Switch (Switch G), and is using channel 7. I have a Y Harness attached to channel 7 on the receiver and running both servos simultaneously.
The servos will respond, but when the flap is engaged, it seems too easy to push the flap back to the flat position. Like the servos do not have enough torque to hold the flap down. Sometimes there also seems to be a bit of hesitation when the switch is engaged, and the two servos are not always in sync. I have had a few tricky landings where I can’t slow down enough, and suspect the flaps are not fully engaged because of this problem.
Here is where it gets confusing to me, I have tried different servos with a higher torque rating with no improvement, and when I unplug either one of the servos, the problem is improved in the servo that is still plugged in.
Does anyone have any thoughts? I’m all out of ideas.
