Hi Scott, John and Ron

I would agree that a Bobcat would be vastly overpowered by a P120/Simjet 3000 under STP conditions. But at the temps and altitude Xantos is flying at it's output would be about 17-18 lbs, which is the top end of the recommended thrust. A Wren supersport would be putting out about 13-14 lbs thrust, which is the bottom end of the recommended range.

Keeping the aircraft as light as possible, or at least making the weight in the aircraft functional instead dead, will help as well.

Ed