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Recent developments in the construction and operation of all-metal airplanes (1926)
NASA Technical Reports Server (NTRS) · leaf 27
N.A.C.A. Technical Memorandum No.373 Figs.16,18,19,20,31,33&33 Fig.17 Observation seaplane Do.E, … Fig.19 Boat 8eaplane"Wal", military type. Fig.31 Power plant of"Wal" Fig.33 Rollers for moving the Fig.33 "Wal" sidewise. uaoning zne wneels. 77Q7 f\.S.NASA Technical Reports Server (NTRS)
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