Helicopter Test Pilots' Courses
ETPS commenced Rotary Wing Courses in 1963. By 1990 ETPS was up to its No 28 course. Guess the ratio is about 1 in 10+
John Farley graduated on No 1 Course.
Keith Englesman RAN is still active on rotary and fixed wing with experience on about 300 types. Think he graduated with USN at Pax River.
My first chopper was a Sikorsky S51 in 1952.