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Marine propulsion is the mechanism or system used to generate thrust to move a watercraft through water. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting of an electric motor or internal combustion engine driving a propeller, or less frequently, in pump-jets, an ...
Articles about marine propulsion. Subcategories. This category has the following 6 subcategories, out of 6 total. G. Gas turbine ships (1 P) H. Hydroflight (4 P) ...
A marine steam engine is a steam engine that is used to power a ship or boat. This article deals mainly with marine steam engines of the reciprocating type, which were in use from the inception of the steamboat in the early 19th century to their last years of large-scale manufacture during World War II.
Mechanical propulsion systems generally consist of a motor or engine turning a propeller, or less frequently, an impeller or wave propulsion fins. Steam engines were first used for this purpose, but have mostly been replaced by two-stroke or four-stroke diesel engines, outboard motors, and gas turbine engines on faster ships.
Becoming reliable, and propelled by screw rather than paddlewheels, the technology changed the design of ships for faster, more economic propulsion. Paddlewheels as the main motive source became standard on these early vessels. It was an effective means of propulsion under ideal conditions but otherwise had serious drawbacks.
Pages in category "Marine steam propulsion" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. ...
The first two private steam yachts known were: Endeavour, a wooden paddle steamer registered 28 January 1828 by builders Rawlinson and Lyon, Lambeth, 75’6” x 12’ x 7’2”, 25 tons with a 20 HP Maudslay patent [3] oscillating engine with two cylinders 20in. dia. X 2 ft. stroke, and registered to the eminent English engineer Henry Maudslay, [4] London on 21 February 1828, who used her as ...
Experimentation with screw propulsion continued in some quarters, however, and between 1750 and the 1830s numerous patents for marine propellers were taken out by various inventors, [7] though few of these inventions were pursued to the testing stage, and those that were proved unsatisfactory for one reason or another.