Stinson L-5 Quiet Airplane 1948

In 1947 NACA (now NASA) funded the development of a quiet airplane. Using a Stinson L-5E airframe, a 96 inch, 5 bladed wooden prop with wide cord and a rubber leading edge and a special quiet muffler, the plane took flight.

The man standing behind the propeller of the Quiet Stinson is Frank Malinak, the test pilot.

Thanks to Jim Gray

www.sentinelclub.org
for the photo and information about Frank Malinak.

See www.yo-3a.com and www.prizecrew.org for the silent aircraft built by Lockheed for Vietnam 1968-1971