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Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-trough dimension (height) increases as well. When hull speed is exceeded, a vessel in displacement mode ...
The Spearhead-class expeditionary fast transport (EPF) is a United States Navy–led shipbuilding program to provide a high-speed, shallow draft vessel intended for rapid intra-theater transport of medium-sized cargo payloads. The EPFs can reach speeds of 35–45 knots (65–83 km/h; 40–52 mph), and allow the rapid transit and deployment of ...
Although in reality both are laid up due to their high operating costs and less than green credentials in terms of fuel burned in transporting one unit of cargo per nautical miles traveled. Originally built in 1972 and 1973 as high-speed container ships known as SL-7s for SeaLand , the ships' high operating costs limited their profitability.
USNS Carson City (JHSV-7/T-EPF-7), (ex-Courageous) is the seventh Spearhead-class expeditionary fast transport, currently in service with the United States Navy ' s Military Sealift Command. [1] She is the second ship in naval service named after Carson City, Nevada. [4] [5] Carson City was built by Austal USA in Mobile, Alabama.
Container ship: Subclasses (1) Geared or gearless (as per cargo-handling type) (2) Freighter or pure container (as per passenger carrier-type) (3) Feeder or world-wide foreign-going vessel (as per trade) (4) Panamax or post-Panamax vessel (as per breadth of vessel < or > than 32.2m respectively) Built: 1956–present: In service: 9,535 ships as ...
The related term emergency may not be any faster than flank but it indicates that the ship should be brought up to maximum speed in the shortest possible time. [1] Other speeds include one-third, two-thirds, standard and full. One-third and two-thirds are fractions of standard speed. Full is greater than standard but not as great as flank.
Vessels at that time typically carried a mixture of unmatched cannon using disparate ammunition. The matched armament is considered revolutionary, and a contributing factor to the deadly reputation of the English naval artillery. [6] The first English ship built in North America, Virginia of Sagadahoc, was a pinnace.
The fast combat support ship (US Navy hull classification symbol: AOE) is a type of replenishment auxiliary ship. Different from traditional logistic ships, the fast combat support ship is designed with high speed to keep up with the carrier battle group / carrier strike group , while the multi-product station is capable of supplying all types ...