CGameProgrammer
Member
I fly a R44 and it is very obvious when it is running on just one mag (during the mag check) - it sounds and feels rough and only smooths out when both mags are working. So the pilot would have to be really oblivious to have done that. Also once during the ground mag check I accidentally turned the key too far left and killed the engine, but I turned it back to L and the engine immediately restarted. So you can (at least if quick enough) easily verify the magnetos turn off if you want to, though as mentioned it seems unnecessary to me.