Everybody is entitled an opinioin so here is mine. If i were to consider using a 2 stroke on an aircraft i would look to the marine engine because those are designed from the very start to operate at high power settings for long durations. As far as the oil mixing goes I think anyone that has owned our operated a "modern" outboard engine would know how well that issue has been handled, the new variable rate injections systems have that solved. I owned an OMC 100 hp V-4 and I NEVER fouled a plug EVER, the operating rage was a bit high, optimum high idle speed was 5500 rpm so a psru would be in order. I think the biggest problem would be weight but I dont know how much one could cut the weight, but, the point is an outboard is designed to operate under full load for extended periods where most automotive engines are not, and todays 2 cycle engines with oil variable rate oil inj systems are extremely reliable. I guess its all a matter of weight and choice. Even tho I have so many good things to say about the 2 strokes guess what I'm using an O-200 , go figure..... I just want to get it in the air.
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