screw propeller

nautical engineering

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July 13, 2026

Quick Summary

A screw propeller is a device with a central hub and radiating blades that form a helical surface. When rotated in water, it generates thrust, propelling a ship forward. This technology became effective for large warships in the mid-1840s, with pioneers like John Ericsson in the United States and Sir Francis Pettit Smith in England developing efficient designs. The screw propeller is a key component in a ship's propulsion system, and its design and placement are crucial for efficient movement and to avoid vibration. The thrust generated is proportional to the mass of water acted upon and the rate of acceleration.123

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John Ericsson
…in 1836 he patented a screw propeller, first used in 1837 on the Francis B. Ogden, built in London. Capt. Robert F. Stockton, of the U.S. Navy, ordered a small iron vessel, the Robert F. Stockton, to be fitted by Ericsson with engines and screw; it reached New York City…
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…in 1836 he patented a screw propeller, first used in 1837 on the Francis B. Ogden, built in London. Capt. Robert F. Stockton, of the U.S. Navy, ordered a small iron vessel, the Robert F. Stockton, to be fitted by Ericsson with engines and screw; it reached New York City…
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Shaker
Economics
…(usually unpatented) inventions, including the screw propeller, babbitt metal, a rotary harrow, an automatic spring, a turbine waterwheel, a threshing machine, the circular saw, and the common clothespin, among other things. They were the first to package and market seeds and were once the largest and most respected manufacturers of…
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…(usually unpatented) inventions, including the screw propeller, babbitt metal, a rotary harrow, an automatic spring, a turbine waterwheel, a threshing machine, the circular saw, and the common clothespin, among other things. They were the first to package and market seeds and were once the largest and most respected manufacturers of…
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naval architecture
Interactions between propeller and ship
The operation of a screw propeller involves a number of interactions that are by no means fully understood. Part of the water through which the propeller moves is the boundary layer moving aft past the hull, with a relative velocity less than the ship velocity. Another part of it…
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The operation of a screw propeller involves a number of interactions that are by no means fully understood. Part of the water through which the propeller moves is the boundary layer moving aft past the hull, with a relative velocity less than the ship velocity. Another part of it…
Read More