[helijeli]

Hmm... a bit of a dangerous oversight on my part. I went to tinker with my Heli and noticed that the Receiver cut out and servos stopped working. Then realized the small Lipo supplying power to the BEC was dead. Have been recharging the big Main Batteries but forgot the small BEC one. Possibly why the Heli's been hiccuping. Charging it now - will see if it behaves better next Hovering session. In other planes the power for the Rx/Servos is supplied via the throttle lead from the ESC. In this Heli, the power is supplied from the BEC to the Battery socket on the Rx. If that fails, will power fall back to the ESC supply via the throttle socket? I know that the point of the separate BEC is that it supplies more power than the ESC for power hungry servos but it still seems you actually have 2 power sources supplying the Rx/servos.

Thanks Guys, just read your posts. Good chance that the flat BEC battery was the culprit. Will give everything a good looking over in anycase. Nice that this Heli was prebuilt for me but I guess the disadvantage is that you don't have the in depth understanding of all the systems and workings that comes from building it yourself. That's OK, keen to learn and your right Rob, these electronically and mechanically complicated air thrashing machines are addictive!