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Aviation History
1943
1943 - 1312.PDF
22 Advertisements. FLIGHT MAY 2OTH, I0.43 THE THIRST FOR POSITIVE KNOWLEDGE The Airshi With the invention of the steam engine it was but a short step from the Hydrogen Balloon to the dirig[bie. Giffard, in 1852, showed that his 3 Ir.p. engine was capable of propelling an airship at between 5 and 7 miles an hour, and his many flights added much to man's store of positive knowledge of controlled flight. Positive knowledge is supplied to the pilot of to-day by Weston Aircraft Instruments, which guide and inform at every moment from take off to touch down. AIRCRAFT INSTRUMENTS - FROM TAKE SANCAMO WESTON LTD. 'O, ENFIEID, MIODLEtf X
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