GA Turboprop

[martymayes]

Ok this will be my last question:

Hypothetically if that TP-100 had lower fuel burn than a piston, let's say close to what a diesel engine burns (I know that it's not possible, but let's just assume that it was), and it was FAA certified. Would you still stick to the piston even if the price premium was "only" 25-50% over the piston??

For sure, 25-50% premium for turbine power would change the landscape. Not overnight, but it would eventually push piston engine dominance aside in light planes. None of this is going to happen without a technology breakthrough, cause regardless of the name on the dataplate, can't manufacture a turbine engine at a price that will be competitive with current piston engines.