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Encyclopedia > Landing Craft Utility

Landing Craft Utility (LCU) are used by amphibious forces to transport equipment and troops to the shore. They are capable of transporting tracked or wheeled vehicles and troops from amphibious assault ships to beachheads or piers.


Class descriptions

The LCU 1610, 1627 and 1646 class vessels are operated by the United States Navy. They are a self-sustaining craft complete with living accommodations and messing facilities for a crew of ten. They have been adapted for many uses including salvage operations, ferry boats for vehicles and passengers, and underwater test platforms. Each LCU is assigned an officer-in-charge who is either a Chief Petty Officer or Petty Officer First Class in the boatswain’s mate rating. These vessels have both bow and stern ramps for onload/offload at either end, and can be linked bow to stern to create a temporary pier-like structure. Its welded steel hull provides high durability with deck loads of 800 pounds per square foot. Arrangement of machinery and equipment has taken into account built-in redundancy in the event of battle damage. The craft features two engine rooms separated by a watertight bulkhead to permit limited operation in the event that one engine room is disabled. An anchor system is installed on the starboard side aft to assist in retracting from the beach. These vessels are normally transported to their areas of operation onboard larger amphibious vessels such as LHDs and LHAs. The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... Good conduct variation Chief Petty Officer insignia Chief Petty Officer is the seventh enlisted rank in the U.S. Navy, just above Petty Officer First Class and below Senior Chief Petty Officer, and is a non-commissioned officer. ... Good conduct variation Petty Officer First Class insignia Petty Officer First Class is the sixth enlisted rank in the U.S. Navy, just above Petty Officer Second Class and below Chief Petty Officer, and is a non-commissioned officer. ... LHD is the US Navy hull classification symbol for multipurpose amphibious assault ships of the Wasp class. ... LHA is: LHA — A freeware compression utility and associated file format. ...

The LCU 2000 class vessels are operated by the United States Army. They transport rolling and tracked vehicles, containers, and outsized and general cargo from ships offshore to shore, as well as to areas that cannot be reached by oceangoing vessels (coastal, harbor, and intercoastal waterways). It can be self-deployed or transported aboard a float-on/float-off vessel. It is classed for full ocean service and one-man engine room operations and is built to U.S. Coast Guard standards. The vessel can sustain a crew of 2 warrant officers and 11 enlisted personnel for up to 18 days. This class is also equipped with an aft anchor to assist in retracting from the beach. The Army is the branch of the United States armed forces which has primary responsibility for land-based military operations. ... Coast Guard shield The United States Coast Guard is the coast guard of the United States. ...

The LCU Mk10 class vessels are operated by the Royal Navy. They are intended for use onboard the new assault ships HMS Albion and HMS Bulwark. These vessels are capable of operating independently for up to 14 days. They are capable of operating world-wide, from artic operating areas to tropical operating areas. The Royal Navy of the United Kingdom is the senior service of the armed services, being the oldest of its three branches. ... There have been nine ships to bear the illustrious name of HMS Albion from a Third-rate ship of the line to a commando carrier to todays Albion-class LPDs (Landing Platform Dock Ships). ... Seven ships of the Royal Navy have been named HMS Bulwark. ...

General characteristics

LCU 1610, 1627 and 1646 classes

LCU-1627 class
  • Power Plant: 4 × Detroit 12V-71 diesel engines, 2 × shafts, 680 hp sustained, Kort nozzles
  • Length: 134.9 ft (41.1 m)
  • Beam: 29 ft (8.8 m)
  • Displacement: 200 tons (203.2 metric tons) light; 375 tons (381 metric tons) full load
  • Deck area: 1,850 ft2 (171 m2)
  • Draft: 3.5 ft (1.1 m) (forward, full Load), 6.8 ft (2.1m) (aft, full Load)
  • Speed: 11 knots (20.3 km/h)
  • Range: 1200 miles at 8 knots
  • Capacity: 170 tons (172.73 metric tons)
  • Military Lift: 125 tons of cargo, trucks, tanks, or 400 marines
  • Crew: 10
  • Guns: 2 × 12.7 mm machine guns
  • Radar: Navigation: LN 66 or SPS-53; I band.

LCU 2000 class

LCU-2000 class
  • Length: 174 ft (53 m)
  • Beam: 42 ft (12.8 m)
  • Displacement: 575 tons (584 metric tons) light; 1087 tons (1104 metric tons) full load.
  • Deck area: 2,500 ft2 (232 m2) (5 M1 main battle tanks or 12 (24 double-stacked) 20-foot ISO containers.
  • Payload: 350 short tons (15 C-141 loads).
  • Range: 10,000 nautical miles at 12 knots (light); 6,500 nautical miles at 10 knots (loaded).
  • Draft: 8 ft (light); 9 ft (loaded).
  • Beaching draft: 4 ft at the bow.
  • Carries up to thirty 20-ft containers or twelve 40-ft containers.
  • Crew: 13
  • Equipped with latest navigation, communications, and electronic equipment including an automatic pilot and steering system.

A nautical mile is a unit of distance, or, as physical scientists like to call it, length. ...

LCU Mk10 class

  • Power Plant: 2 × diesel engines
  • Length: 97.8 ft (29.8 m)
  • Beam: 24.2 (7.4 m)
  • Displacement: 236 tons (240 metric tons)
  • Draft: 5.6 ft (1.7 m)
  • Speed: 8.5 knots (15.7 km/h)
  • Capacity: 1 main battle tank, four large vehicles or 120 troops

External links

  • navsource.org: Index of Landing Craft Utility (http://www.navsource.org/archives/10/18idx.htm)
  • Assault Craft Unit One (http://www.acu1.navy.mil/) (operates LCUs)
  • Assault Craft Unit Two (http://www.cnsl.spear.navy.mil/acu2/) (operates LCUs)
  • 4 Assault Squadron Royal Marines (http://www.royal-navy.mod.uk/static/pages/6888.html) (operates LCUs)

  Results from FactBites:
Landing craft tank - Wikipedia, the free encyclopedia (481 words)
The Landing craft tank was an amphibious assault ship for landing tanks on beachheads, used by the U.S. Navy in World War II, and afterwards under different designations in the Korean War and the Vietnam War.
Some of these were later reclassified during the Vietnam War as Harbor Utility Craft (YFU) because they no longer served in an amphibious assault role but were only used in harbor support roles such as transporting goods from supply ships into harbor.
Twenty-six of them had armor added, making them LCT(A), Landing Craft Tank (Armored), for the D-Day invasion; however, this reduced their load from 4 tanks to 2.
  More results at FactBites »



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