We used to race each other at Fly-Ins. The late Doc Morgan usually won the “Scenic Route” award, in our long x-country (not pylon) races. For the benefit of the FAA and the insurance companies, we called them “proficiency exercises.” The most proficient pilot crossed the finish line first. One of the little secrets learned was that with a 2-bladed prop, the ship is fastest at 2500 rpm; any faster and the tips are too close to Mach 1.
