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Although conventional screw propellers are simpler and cheaper, pump-jet propulsors offer greater speed and agility, better efficiency at high speeds, and less noise.—IEEE Spectrum, 16 Dec. 2024 Divers also found iron hull plates and a screw propeller, according to a social media post by D/V Tenacious.—Kerry Breen, CBS News, 11 Sep. 2024 The vehicle has only one main propulsion motor, and uses a novel clutch system to engage either the front tractor propeller for flight in air, or the rear ship's screw propeller for underwater propulsion.—IEEE Spectrum, 9 July 2021 Assuming 20 typhoons occur near Japan annually, each typhoon generator ship with a large screw propeller could theoretically generate enough energy to power more than 30,000 average-sized American homes.—Tim Hornyak, Discover Magazine, 15 Oct. 2022 The first steamship with a screw propeller, the Archimedes, had been built in Britain in 1839.—David G.w. Birch, Forbes, 5 Oct. 2021 Others saw motorized, winged crafts with screw propellers.—Greg Eghigian, Smithsonian, 2 Feb. 2018
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