RE: Turbo Props
TP reliability is much better now, Mark's engine was an early one. The V3 JetCat is really good, I will be test flying one in a CARF Tucano this week. Most of the problems were with turbine air intake, you need to separate the hot exhaust to the engine intake, CARF were the first to do this with the Tucano motor box. I've modified my AirTrade Raven to allow cold air to travel over exhaust area. A simple baffle is all that is needed.
Dave