I was doing a conversion course in the states, and asked the factory instructor/test pilot (as we were practicing engine offs in a single at the time) How many engine failures he had experienced in his time (20 years in various mil roles I think)And he said just two,to this I asked wether it was a single or a twin, the reply:
"Oh it was a twin and both quit, an Apache actually !!!!!!" Apparantly it was quite exciting.
So maybe only Merlins/Eh 101(or anything with threeengines) should be allowed for EMS(joke).
The one thing you can be sure of,if its got an(y) engines they will stop! It may be at your request or it may not!
Regards
hoverbover