The Aeroplane 701 September 5, 191 7 … Aeroplane Construction In aeroplane construction the vital factor is "how many machines can be turned out in a given time." This depends entirely upon the efficiency of the machinery empl iyed. And no machine reaches its highest point of production until its clutches, brakes, etc , are fitted with…
Aeronautics -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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