ANEC IV detail drawing NACA Aircraft Circular No.21.jpg
NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS
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ANEC IV detail drawing NACA Aircraft Circular No.21, ANEC IV detail drawing from NACA Aircraft Circular No.21
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ANEC IV detail drawing NACA Aircraft Circular No.21, ANEC IV
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ANEC IVの詳細図NACA航空機サーキュラーNo.21、ANEC IVの詳細図NACA航空機サーキュラーNo.21
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ANEC IVの詳細図NACA航空機サーキュラーNo.21、ANEC IV
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