2 second Power loss in flight...!!!

[Cyclicscooby]

Hi Guys..

Wandered if you experts could help me...

I've got a Voyager E, brushless, Mtroniks genesis sc, and 3s2p pack..

I could get over 12mins out of it, but rarely go over 8mins.
The batt usually takes 2200-2300mA's back into a 5A flightpower pack (balanced), so I don't think voltage drop is an issue.

Everything is fine, for 5-6 mins, then suddenly the motor looses 95% power for about 1.5-2 seconds, then gradually comes back in..!!! It doesn't happen every flight, but perhaps 1 in 3.

The other channels appear to be fine, as I'm able to bring it down under control.
The connectors are all man enuf and in good order.. ?!?!

I only fly gentle circuits and HAVEN'T learnt auto's yet.. !! It's happened about 8-10 times now, and i've been fortunate enuf to have the height to not hit the deck, especially as it has a nice Bell230 fuzz...

Any advice would be gratefully recieved.


Luv
Chrisie...

[jamiem]

possibly the speed controller over-heating? maybe try moving it to somewhere with better air-flow if at all possible. id also get some auto practice in on the sim if you have one it saved my bacon the first few times i had an engine cut on me...

[Cyclicscooby]

Cheers Jamie..

With a bit of re-wiring, there is plenty of space in the cockpit, so i'll give that a go...

I've actually caught it on camera, as I had that strapped to the heli at the time, and after carefully listening you can hear it faulter just before full loss of power.. !!!

Thanks
Luv
Chrisie...

[Cyclicscooby]

Dont know if this'll work, but...

[ame]http://s94.photobucket.com/albums/l115/cyclicscooby/?action=view&current=Heli-cam-evening.flv[/ame]

There is a slight glitch less than 1 minute in, then later, just after you see my other half in a high-vis, there is a big power loss.. !!!

[gazza]

This used to happen with my Swift on occasion.
Eventually traced it to where the wires exit the motor. The motor can had slightly worn & cut the heatshrink thus causing a bit of shorting out across two of the three wires

Applied more heatshrink & it never did it again