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Aviation History
1938
1938 - 0358.PDF
8 FLIGHT. ADVERTISEMENTS. FEBRUARY IO, 1938, WHITE EY HEAVY BOMBER FIRST THING YOU SEE And the first Wind Indicator in the Right Place The G.A.L. electrically-operated Wind Indicator shows the direction and strength of Wind by a dense white trail of smoke from the centre of the aerodrome—instantly visible, always reliable. It can be seen from any height and illuminated at night. It operates from tne control building, will run over a week continuously withou replenishment for only Id. an hour—maintenance is nil. If the on supply should be exhausted, current automatically cuts off. NO obstruction to landing—fitted with stressed pit covers. Entirely weatherproof and will function despite flooding. If electricity is not available, use the G.A.L. flame type Smoke Trail with petrol burner Already supplied to the Govt. of the Union of South Africa, Crown . Agents for the Colonies, Royal Canadian Air Force, R.A.F.V.R., etc. GAL SMOKE TRAIL General Aircraft Ltd., London Air Park, Feltham, Middx. Kindly mention "Flight" when corrcr.pcr.di~p with advertisers.
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