Sentence Examples


  • The model was forced by its propellers along a wire at a great speed, but so far as an observer could determine, failed to lift itself, notwithstanding its extreme lightness and the comparatively very great power employed.
  • The cardinal idea was to force the aeroplanes (slightly elevated at their anterior margins) forwards, kite-fashion, by means of powerful vertical screw propellers driven at high speed - the greater the horizontal speed provided by the propellers, the greater, by implication, the lifting capacity of the aerodrome.
  • The two propellers, which were comparatively very large,'being placed amidships, so to speak.
  • When going at full speed these engines conferred 425 revolutions per minute on the two gigantic propellers that drove the machine along.
  • These were in appearance like two-bladed marine propellers except that they were square instead of rounded at the ends, and were broad and thin.
 

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