Thunder Tiger engines are terrific across the board. I own two GP-07s, two GP-42s, a GP-61, a Pro .46, and a TT F-91s four stroke. I often comment that, if I could only fly one brand of engine, I'd fly Thunder Tiger.

The engine you put on your trainer is actually the designated engine for a couple of different classes of sanctioned pylon racing events. The TT Pro .40 is no slouch!