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Reference books (Cross topic aircraft) 航空機 » プロペラ | 範囲なし
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U.S. Army Air Force Stratosphere Flight of 1935 in the Balloon "Explorer II" Contributed Technical Papers
Stratosphere Series No. 1, 2
1936 /ja/search.php?fkSECTION%5B%5D=Books&fkSERIES%5B%5D="Stratosphere%20Series"&q=%2A?fkSECTION%5B%5D=Books&fkSERIES%5B%5D="Stratosphere%20Series"&q=%2A