This Day in Aviation History
April 11th, 1943
First flight of the Piasecki PV-2.
The Piasecki PV-2 was a helicopter designed by Frank Piasecki. The PV-2 is best known for being the second successful helicopter flown in the United States. The PV-2 first flew on April 11, 1943. Developed as a technology demonstrator, the PV-2 brought several new features such as the first dynamically balanced rotor blades, a rigid tail rotor with a tension-torsion pitch change system, and a full cyclic and collective rotor pitch control.
The PV-2 is now on display at the National Air and Space Museum’s Steven F. Udvar-Hazy Center….
Wikipedia, Piasecki PV-2:
YouTube, Piasecki PV-2 first flight, April 1943:
YouTube, Piasecki PV-2, mid-summer 1943:
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