Harold F. Pitcairn: Aviator, Inventor, and Developer of the Autogiro by Carl R. Gunther, Bryn Athyn College Press, Pa., 2009, $29.95. Harold Pitcairn’s brief entry in the Aviation Hall of Fame, written a quarter century after his death, fails to effectively showcase this American aviation innovator’s many invaluable contributions. And Frank Kingston Smith’s 1981 Legacy …
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