Robert Boyle's technical and training manuals: 'Army Air Forces Instrument Letdown Procedures' (Air Service Command, Patterson Field, Ohio, 1944) (MC 371/576/7, USF 12/9)
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Robert Boyle's technical and training manuals: 'Army Air Forces Instrument Letdown Procedures' (Air Service Command, Patterson Field, Ohio, 1944)

103


MC 371/576/7, USF 12/9


1 volume

1944


489th Bomb Group


Robert N. Boyle

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