SPEED OF THE FUTURE
The speeds which may lie attained by aircraft in the future are always a matter of conjecture, both among engineers and laymen. Many people will, therefore, be surprised that the ultimate limit has been fixed at as low a figure as f>7. r » miles per hour. This figure is approximately the top speed for aeroplanes with present wing design, according to George W. Lewis, director of research of the American National Advisory Committee for Aeronautics. At this speed, l)r Lewis says, the sustaining How of air over the wings suddenly breaks away in a shod; wave, and the aeroplane loses all it*, lift. These deductions are the remilt of rei-ent tests at the committee's new super speed tunnel at Langley Field, Virginia. It is evident, however, that this limit refers only to flight at sea level, for in rarefied air of the stratosphere enormous speeds would unquestionably be possible, and it is there that the future of aviation lies.
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Otago Daily Times, Issue 22905, 12 June 1936, Page 16
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163SPEED OF THE FUTURE Otago Daily Times, Issue 22905, 12 June 1936, Page 16
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