screw propeller

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  • noun

Synonyms for screw propeller

a propeller with several angled blades that rotates to push against water or air

References in periodicals archive ?
The flow produced by the screw propeller and caused by the effect of the stern screw of the propeller usually is not taken into account in many cases; however, this effect could have a considerable influence on the force of tug pulling.
Therefore the outboard water around a screw propeller, where the cavitation reaches the highest level, is mostly suitable for cooling the surface of marine motors and using in sea water distillation equipment.
Instead of the usual screw propellers you find on boats or underwater vehicles, Finnegan has four flippers, known to engineers as flapping foils, that roll and twist through the water.
By 1900, numerous books on screw propeller design had been published.
He took after his father in having a flair for machinery and in his twenties he invented a screw propeller for ships, only to find that someone else had invented it just before him.
Although the steamship was first developed early in the 19th century, further innovations in subsequent decades--the screw propeller, steel hulls, the compound engine--transformed what had been primarily a river vessel into cheap and reliable ocean transport.
In 1827, however, a British engineer, Robert Wilson (1803-1882), designed a screw propeller, which worked from the stern of the ship, so that it was symmetrically placed and was little affected by the ship's rolling.
The choice of an optimum ship screw propeller is a persistent problem in naval architecture.
1 She was the first ship to have a screw propeller, an iron hull and a massive 1,000 horsepower steam engine