Minor correction: Not Air Force YO-3A, but Army-Lockheed YO-3A. The Air Force was going to participate for 6 months in Vietnam with the YO-3As but their pilots crashed YO-3A 69-18009 before deployment to Vietnam.
I am giving a presentation at Flabob, EAA, Design group 2 on how they silenced the YO-3A (9 YO-3As went to Vietnam and operated 800-1500 feet for 14 months and never shot down, never took a round. Early stealth.)
I would like to title my presentation
The Thingymabob With The Wooden Paddle Props
Would you mind me using this?
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YO-3A