Record revealed
Report on the British Indian Army, 1943
Piece
Catalogue reference: AIR 10/982
This record is about the Sound Signalling from Aircraft. A summary of experimental investigations made at... dating from 1920 in the series Ministry of Defence and predecessors: Air Publications and Reports. It is held at The National Archives, Kew.
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Sound Signalling from Aircraft. A summary of experimental investigations made at Orfordness and Butley 1917-1919
AIR 10
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Records created or inherited by the Air Ministry, the Royal Air Force, and related...
Ministry of Defence and predecessors: Air Publications and Reports
Sound Signalling from Aircraft. A summary of experimental investigations made at...
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