Hey thecheatscalc,

Thanks for the tips. The gear-mesh between the motor and main-gear seems smooth, although I don't have a similar heli to compare the rest of the meshing to. Tail-belt seems to be at the proper tension, when checked the way the manual suggests it and there doesn't seem to be any binding in the swash. It is intresting that if I spool it up to around 50% power with 0 pitch, that even then the motor will eventually get very hot after 5-10 minutes of running (that was before the heat-sink was attached, so it could be significantly longer now). Could be an underpowered motor for the Rex, but it does feel like it provides plenty of power and even lifted the heli easily with my early home-made 175 gram training-gear attached to it. I'm going to try some pitch / throttle-curve adjustments and a lighter training-gear this evening. Maybe that helps a bit. If all else fails, I might try a different motor.


Grtz,

Traveller