Propellers sentence example

propellers
  • Explain the purpose of variable pitch and constant-speed propellers.

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  • During the World War II, the company set up a factory to produce airplane propellers.

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  • 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.

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  • The fore-legs are elongate and adapted for clasping, while the short and flattened intermediate and hind legs form very perfect oar-like propellers.

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  • Aquatic weed growth can impede navigation, clogging boats' propellers and can also physically impede waterflow.

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  • These massive 20 horsepower engines, acquired from London Railways were specially adapted to use propellers in moving the ships through broken ice floes.

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  • Two boats were lowered which were slashed to pieces by the still rotating propellers killing 21 of the 34 occupants which included medical staff.

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  • The absence of propellers may make these turbines less of an eyesore.

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  • The rainbow-like circular wheels are the propellers, answering to the wheels of a steam-boat, and acting upon the air after the manner of a windmill.

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  • 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.

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  • There were twin screw propellers, which could be adjusted to different angles in practice, to provide for steering, and made 1700 revolutions a minute.

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  • When going at full speed these engines conferred 425 revolutions per minute on the two gigantic propellers that drove the machine along.

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  • 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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  • The body of the machine was oblong in shape, with the fore-part cut away like a water-chute boat, and a long counter at the stern over which the propellers revolved.

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  • Beneath the disk is a cage-like compartment and a system of three-bladed propellers that spins parallel to the plane of the disk.

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  • Making about 1200 revolutions a minute, it developed about 24 horse-power, and was connected by chain gearing to two wooden propellers, 21metres in diameter and 31 metres apart, the speed of which was about 450 revolutions a minute.

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