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Astern propulsion (as applied to a ship) is a maneuver in which a ship's propelling mechanism is used to develop thrust in a retrograde direction. Astern propulsion does not necessarily imply the ship is moving astern ( in reverse ); astern propulsion is used to slow a ship by applying a force in the direction of the bow of the ship, instead of ...
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 ...
Personnel at sea are required to undertake fire fighting training at shore based training establishments. [23] It is a statutory requirement and considered good seamanship to regularly practice (drill) these skills when at sea. [23] Other emergency skills include the Man overboard rescue turn.
Astern (adjective): toward the rear of a ship (opposite of "forward"). [9] Athwartships: toward the sides of a ship. [1] Aweather: toward the weather or windward side of a ship. [10] Aweigh: just clear of the sea floor, as with an anchor. [11] Below: a lower deck of the ship. [1] Belowdecks: inside or into a ship, or down to a lower deck. [12]
This is similar to the Kitchen rudder in "Full astern" position The Kitchen rudder is the familiar name for "Kitchen's Patent Reversing Rudders", a combination rudder and directional propulsion delivery system for relatively slow speed displacement boats which was invented in the early 20th century by John G. A. Kitchen of Lancashire, England.
The superiority of electric podded propulsion in icebreaking ships, especially when running astern, was proved when the first propulsion pod was installed on fairway maintenance vessel Seili, owned by the Finnish Maritime Administration, in 1990. Before the conversion the ship could not break ice astern at all, but after the propeller and ...
"I am operating astern propulsion." [b] Speed (velocity) in knots T Tango [ˈtaŋ.goʊ] "Keep clear of me [b]; I am engaged in pair trawling." Local time. (The first 2 digits denote hours; the last 2 denote minutes.) U Uniform [ˈjuː.nɪ.fɔːm] "You are running into danger." V Victor [ˈvɪk.tə] "I require assistance." Speed in kilometres ...
Pages in category "Marine propulsion" The following 90 pages are in this category, out of 90 total. ... Astern propulsion; Azimuth thruster; Azipod; B. Bank effect;