Planes from Vietnam War

The 1969 Lockheed YO-3A with a Continental YO-360D 210HP engine using a six-blade propeller, to reduce engine noise to allow the engine to operate at a lower speed. (Greg Gilbert / The Seattle Times)

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Filename: Planes from Vietnam War
Copyright: The Seattle Times
Image Size: 2200x1568 / 2.2MB; Lockheed YO-3 Quiet Star American U.S. Army single-engine combat propeller-driven aircraft battlefield observation Vietnam War stealth quiet sound war aviation troops darkness engine noise exhibits ‘Vietnam Divided: War Above Southeast Asia Memorial Day
Contained in galleries: Airborne

The 1969 Lockheed YO-3A with a Continental YO-360D 210HP engine using a six-blade propeller, to reduce engine noise to allow the engine to operate at a lower speed. (Greg Gilbert / The Seattle Times)