SILENT AEROPLANES.
POSSIBILITY IN FUTURE. LONDON, Sept. 20. The Daily Mail says that a test of an aircraft engine silencer hy the Air Ministry shows it to be so successful that the noise is less than that of motor-cars. It is easy to hear conversation in normal tones and the engine is inaudible from the ground when a 'plane is flying at a height of 2500 feet. Raiders equipped with the device could not be detected though flying at 180 miles per hour. If air-screw noise is 'as effectively deadened existing aircraft defences will be useless. Silent war ’planes could bomb London and return to their base while the defenders still wondered where they were.
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Bibliographic details
Manawatu Standard, Volume LIV, Issue 252, 21 September 1934, Page 7
Word Count
115SILENT AEROPLANES. Manawatu Standard, Volume LIV, Issue 252, 21 September 1934, Page 7
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