Thomas-Morse XP-13A Viper 29-453
Thomas-Morse XP-13A Viper 29-453 (Wright Field number P-559). The XP-13A was converted from the XP-13, with a 450hp Pratt and Whitney SR-1340-9 radial engine, replacing the unreliable experimental 600hp Curtiss H-1640-1
Picture No
13448942
Media ID
47800367
Size
5433px x 2485px
(4.5MB)
Credit
© The Peter Butt Aviation Collection / Mary Evans
Source
unattributed photographer - scanned from an archive negative copy of a print(?)
Date
circa 1929
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Converted Curtiss Experimental Pratt Radial Replacing Unreliable Viper Whitney
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