Landing Craft Mechanized
The landing craft mechanized (LCM) is 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 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. The British Motor Landing Craft (MLC) was conceived and tested in the 1920s and was used from 1924 in exercises. Nine were in service at the start of the war. It was the first purpose built tank landing craft. It was the progenitor of all subsequent LCM designs. LCM (1) The landing craft, mechanised 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 LCM Mark I was used during the Allied landings in Norway (one alongside the MLCs), and at Dieppe and some 600 were built. Displacement: 35 tonnes Length: Width: Draught: 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 with of freeboard LCM (2) Displacement: 29 tons Length: 45 ft (14 m) Beam: 14 ft 1 in (4.3 m) Draft: 3 ft (0.91 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 The first American LCM design, from the US Navy's Bureau of Construction and Repair. Approximately 150 were built by American Car & Foundry and Higgins Industries. LCM (3) There were two designs: Bureau Capable of carrying of cargo Higgins In appearance very similar to the LCVP which Higgins Industries also constructed, with a wide load area at the front and a small armoured (1/4 inch steel) wheelhouse on the aft decking over the engine room. A Higgins LCM-3 is on display at the Battleship Cove maritime museum in Fall River, Massachusetts. Another Higgins LCM-3 is displayed at the Museo Storico Piana delle Orme in Province of Latina, Italy, 18 miles East of Anzio. Displacement: 52 tons (loaded); 23 tons (empty) Length: Beam: Draft: (forward); (aft) Speed: (loaded); (empty) Armament: two .50-cal M2 Browning machine guns Crew: 4 Capacity: One 30-ton tank (e.g. M4 Sherman), 60 troops, or of cargo LCM (4) In the years 1943 and 1944, seventy-seven LCM(4)s were built. Outwardly, the LCM(4) was almost completely identical to a late model LCM(1) – the difference lay inside the pontoon. Here special bilge pumps and special ballast tanks allowed the LCM(4) to alter trim to increase stability when partially loaded. LCM (5) British model of LCM LCM (6) The LCM (6) was an LCM (3)