The PT6 powered Beavers, and Turbo Beavers are excellent planes, though burn half again to twice the fuel for the same performance as the diesel Beaver has shown. We'll do some more flight testing in the weeks to come, it may come to be shown that the diesel Beaver has a slightly faster cruise than the PT6 version. Though the PT6 engines are easy to start and operate, getting it wrong can be very expensive. The diesel is piston engine simple to start and operate, with much less possibility of accidental mis handling the engine and engine damage.