I have a 3W100QS where the ignition system is fed by a 1900 mAh/7,4V Duralite Plus battery through a Duralite 5,1 V regulator.

I have flown 60 flights and so far blown up two ignition systems.

Both cases are taken care of by 3W without any hassel by warranty claim, but I have got questions from 3W concerning the voltage level from the Duralites / regulator = 3W tends to belive that my setup gives a too high voltage = bad quality regulator.

Have any of you guys experienced this with this setup??

What I experienced both times is very short misfiring in flight followed by sudden stop of the engine.

Please give me your thoughts.

Kato