Military aeroplanes, simplified, enlarged; an explanatory consideration of their characteristics, performances, construction, maintenance, and operation, specifically arranged for the use of aviators and students (1918)
Loening, Grover Cleveland, 1888- · [Boston, W. S. Best printing company] · leaf 241
use of suitable periscopes is well worth experiment. The effect of speeds of aeroplanes in rendering observation moredifficult is not of as much consequence now, in view of the great heightfrom which observations are made. Although it generally has not been so considered in the designof the more…
Airplanes · Aeronautics, Military
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