I see the Subaru operates at 5300 RPM in the Aerokopter and has one coil per ignition lead.......I like the idea of reduced overhaul costs but nowhere on the website could I find a TBO for the engine. I think the best and only way to make judgement on this attractive little heli is to get it out working in the field doing 6-700 hours a year and sit back and see what falls over on it - Give Aerokopter time and space to iron out the bugs (just like Robinson needed) and let the machinery do the talking.
Its great to see the Ukraine back in the design game!