Frank Duke 1932-

Frank Duke is a former Marine Corps jet fighter and helicopter pilot, he spent 31 years as a Boeing test pilot, and was the 1st Boeing rotary wing pilot to be selected to attend the U.S. Navy Test Pilot School. He retired as director of flight test of Boeing Rotary Wing Division.
He made 4 first of type flights, the Boeing Model 347 winged and un-winged,the Model YUH-61 and Model 360.