First flight of the Piasecki HRP-1

Friday, August 15, 1947



This was the first tandem helicopter to go into production service. It was the first of an initial batch of 10 for the U.S. Navy.

Source: "Helicopters and Other Rotorcraft Since 1907", Kenneth Munson, Blandford Press, ISBN 0 7137 0610 4, Page 173


Aircraft related to this milestone
Piasecki HRP-1 Rescuer


Related biographies
Frank Piasecki