Originally Posted by
steveinindy
I'm primarily looking at one of the RR M250-B17Fs at the moment although I might talk to the PWC folks next week at Airventure about what they have to offer. The original plan was to use an aviation diesel but that doesn't seem feasible due to a lack of sufficient horsepower in the currently available models with the exception of one.One of the major issues is that my design is a canard design so it has a pusher arrangement. Once I realized that the diesel option was more or less not viable, the first option I considered was putting a turbofan into the design, but from a fuel consumption standpoint that doesn't seem particularly viable either. My desire not to use a 100LL powered engine for safety reasons (not to mention avoiding having to re-engine once 100LL goes away) limits me to either a diesel or a turboprop then.