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Ref : S02915
Theme :
Aviation-NASA aircrafts-Prototypes (1538 images)
Title : Sperry M-1 Messenger
Caption :
A Langley researcher ponders the future, in mid-1927, of the Sperry M-1 Messenger, the first full-scale airplane tested in the Propeller Research Tunnel. Standing in the exit cone is Elton W. Miller, Max M. Munk's successor as chief of aerodynamics.
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