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Horsepower (hp) is a unit of measurement of power, ... For paddle ships, the Admiralty rule was that the piston speed in feet per minute was taken as 129.7 × ...
An example of a non-military ship with nuclear marine propulsion is the Arktika-class icebreaker with 75,000 shaft horsepower (55,930 kW). In an ice-breaker, an advantage is fuel security and safety in demanding arctic conditions.
It is designed for large container ships that run on heavy fuel oil. Its largest 14-cylinder version is 13.5 meters high, 26.59 meters long, weighs over 2,300 tonnes, and produces 80.08 megawatts. The engine is the largest reciprocating engine in the world.
The class, each ship powered by a single HSD-Sulzer 9RTA84T-D delivering 50,220 brake horsepower (37,450 kW) at 76 rpm, [6] possesses a relatively high service speed (16.5 knots; 30.6 km/h laden, 17.5 knots; 32.4 km/h in ballast), which increases their earning capacity.
The ship's power comes from six medium-speed, marine-diesel generating sets: three 16-cylinder Wärtsilä 16V46D common rail engines producing 18,860 kilowatts (25,290 hp) each and three similar 12-cylinder Wärtsilä 12V46D engines producing 13,860 kilowatts (18,590 hp) each. The fuel consumption of the main engines at full power is 1,377 US ...
Length Overall (LOA) – The maximum length of the ship between the ship's extreme points; important for berthing purposes. Length at Waterline (LWL) – The ship's length measured at the waterline. Shaft Horsepower (SHP) – The amount of mechanical power delivered by the engine to a propeller shaft. One horsepower is equivalent to 746 watts.
The list of naval ship classes in service includes all combatant surface classes in service currently with navies or armed forces and auxiliaries in the world. Ships are grouped by type, and listed alphabetically within.
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...