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The Boulton and Paul P.64 mail-carrier : a two-engine all-metal biplane (1932)

NASA Technical Reports Server (NTRS) · leaf 13

An illustration from The Boulton and Paul P.64 mail-carrier : a two-engine all-metal biplane, 1932, leaf 13
H.A.O.A. Aircraft Circular Ho.177 rigs.4,5,6

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