1987 Popular Rotorcraft Association National Fly-In
THE WINGS SWING AT PRA’S ANNUAL ROTORFEST It was the biggest aviation event of its kind in history — but with out a single airplane!…
Dick DeGraw
One-Man Rotary Wing Craft
Lots of hard-working, far-sighted folk believe that the development of small, low-cost helicopters or autogiros is an absolute must . . here is a glimpse…