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From Point A to Point B: The” Question Mark” And Its Flying Endurance Record, 1-7 January 1929 -The Homestead Blog
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Aircraft endurance and altitude records. Jimmy Doolittle in GeeBee went for speed. 1929-1931 were pivotal years. Post WW 2, U.S. Navy Aviation Slimdown Proved Costly.
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After setting ultra-endurance record, Army Zephyr drone keeps flying, whether it wants to or not - Breaking Defense
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Stinson Junior Monoplane, piloted by Bob Black & Louis Reichers refueling in flight during endurance record attempt - Cradle of Aviation Museum - New York Heritage Digital Collections
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