ORIGINAL: p39
I was at an IMAA event at Topeka a few years ago where one flyer let another fly his rather large Yak. He accidently flipped the optical kill switch perhaps thinking it was the smoke switch. The engine killed. No way of restarting it and it crashed into a shed. I'm hesitant of optical kill switches relying on my idle cut off instead.
The powerbox one has to have the TX switch flipped twice. I've often wondered though, ifthe switchwere flipedby mistake would your natural reaction be to if it back again....