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A US Landing Craft Mechanized (LCM)

Kiska Invasion 01

Troops and a LCM in August 1943

Close to Leyte beach

An LCM during the invasion of Leyte

The Landing Craft Mechanized (LCM) or Landing Craft Mechanical was a landing craft designed for carrying vehicles. They came to prominence during the Second World War when they were used to land troops or tanks during Allied amphibious assaults.

Variants Edit

There was no single design of LCM used, unlike the Landing Craft, Vehicle, Personnel (LCVP) or Landing Craft Assault (LCA) landing craft made by the US and UK respectively. There were several different designs built by the UK and US and by different manufacturers.

LCM (1) Edit

The Landing Craft Mechanical Mark I was an early British model, it was able to be slung under the davits of a liner or on a cargo ship boom with the result that it was limited to a 16 ton tank. The British LCM was conceived and tested in 1920 and was used from 1924 in exercises.[1]

The Landing Craft Mechanical Mark I was used during the Allied landings in Norway, and at Dieppe and some 600 were built.

  • Displacement: 35 tonnes
  • Length : 13.6 m
  • Width : 4.27 m
  • Draught : 1.22 m
  • Machinery : two Chrysler 100 hp petrol engines
  • Speed : 7 knots
  • Crew : 6 men
  • Armament : two .303 in. Lewis guns
  • capacity: one medium tank, or 26.8 tons of cargo or 60 troops
    • 100 men
    • 54,500 lbs with 9 inches of freeboard[2]

LCM (2) Edit

  • Displacement: 29 tons
  • Length: 45 ft (14 m)
  • Beam: 14 ft 1 in (4.3 m)
  • Draft: 13 ft (4.0 m)
  • Speed: 8.5 knots (15.7 km/h)
  • Armament: two .50-cal M2 Browning machine guns
  • Crew: 4
  • capacity; 100 troops, or one 13.5 ton tank, or 15 tons of cargo

Approximately 150 were built.

LCM (3) Edit

Higgins LCM-3 at Battleship Cove, Fall River MA

Higgins LCM-3 at Battleship Cove

There were two designs:

  • BUREAU

Capable of carrying 120,000 lb (Bad rounding hereScript error kg) of cargo.

  • Higgins

The builder responsible for the LCVP. In appearance very similar to the LCVP with a 10-foot (Bad rounding hereScript error m) wide load area at the front and a small armoured (1/4 inch steel) wheelhouse on the aft decking over the engineroom. Capable of carrying a single 30-ton tank (e.g., an M4 Sherman), 60 troops, or 60,000 lb (Bad rounding hereScript error kg) of cargo. There is a Higgins LCM-3 on display at the Battleship Cove maritime museum in Fall River, Massachusetts.[3]

LCM (4) Edit

British model of LCM

LCM (5) Edit

British model of LCM

LCM (6) Edit

An LCM (3) extended by 6 feet (Bad rounding hereScript error m) amidships.

  • Power Plant: 2- Detroit 6-71 Diesel engines; 348 hp (Bad rounding hereScript error kW) sustained; twin shaft, or 2- Detroit 8V-71 Diesel engines; 460 hp (Bad rounding hereScript error kW) sustained; twin shaft
  • Length: 56.2 feet (17.1 m)
  • Beam: 14 feet (4.3 m)
  • Displacement: 64 tons (65 metric tons) full load
  • Speed: 9 kt (10.3 mph, 16.6 km/h)
  • Range:130 miles (240 km) at 9 knots (Bad rounding hereScript error km/h)
  • Military lift: 34 tons (34.6 metric tons) or 80 troops
  • Crew: 5

LCM (7) Edit

British model of LCM

LCM (8) Edit

Lcm-8 1972

LCM-8 in March 1972

General characteristics, LCM 8 Type

  • Power Plant:2- Detroit 12V-71 Diesel engines; 680 hp (Bad rounding hereScript error kW) sustained; twin shafts
  • Length: 73.7 feet (22.5 m)
  • Beam: 21 feet (6.4 m)
  • Displacement: 105 tons (106.7 metric tons) full load
  • Speed: 12 kt (13.8 mph, 22.2 km/h)
  • Range: 190 nm (350 km) at 9 knots (Bad rounding hereScript error km/h) full load
  • Capacity: 53.5 tons (54.4 metric tons)
  • Military lift: one M48 or one M60 tank or 200 troops
  • Crew: 5

References Edit

  1. William F Buckingham. D-Day the First 72 hours Tempus Publishing, Stroud. 2004
  2. Norman Friedman U.S. Amphibious Ships and Craft: An Illustrated Design History Naval Institute Press, 2002 9781557502506
  3. http://www.battleshipcove.org/exhibits-lcm.htm

External links Edit

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