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Avia pursuit airplane B.H. 21 (1926)

NASA Technical Reports Server (NTRS) · leaf 6

An illustration from Avia pursuit airplane B.H. 21, 1926, leaf 6
N.A.C.A. Aircraft Circular No.23 Fig.l Fig.l Avia pursuit airplane 3.H.21

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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