The craft was a little faster but three sets of running gear strained the supply position so later Mk2 had two Paxman diesel engines of 500 hp each. The first craft were ordered in December 1940 and completed in March 1941. Increasing the beam of the Mk2 by 2 ft (0.61 m) allowed a much greater cargo capacity of lighter vehicles, where the Mk1 could only carry three Valentine tanks the Mark 2 could carry 7. At 2,700 nautical miles (5,000 km 3,100 mi), it had three times the range of its predecessor. The LCT Mark 2 was longer and wider than the Mark 1, with three Napier Lion petrol engines replacing the Hall-Scotts as these were required for Coastal Forces craft. ģ × 460 hp (343 kW) Paxman diesels or 350 hp (261 kW) Napier Lion petrol engines, 3 shaftsĥ × 30-ton or 4 × 40-ton or 3 × 50-ton tanks or 9 trucks or 250 long tons (254 t) of cargoĢ × single 2-pounder pom-pom or 2 × single Bofors 40 mm guns The craft were arranged in four sections so they could be shipped to the Eastern Mediterranean as deck cargo on merchant ships. Engines were two Hall Scott Defender petrol engines of 500 hp each.
The tank deck swept up above the waterline near the bow before falling away again to the ramp. They were designed on the same principle as a floating dock, with watertight side pontoons on each side joined by a tank deck set below the waterline. It was designed to land three of the heaviest tanks (40t) then envisaged for the British Army in 2 ft 6ins of water on a 1:35 gradient beach. The first LCT Mark 1 was launched by Hawthorn Leslie in November 1940. )Ģ × 350 hp (261 kW) Hall-Scott petrol engine, 2 shafts Designated the LCT Mark 1, 20 were ordered in July 1940 and a further 10 in October 1940. Its speed was 10 knots (19 km/h 12 mph) on engines delivering about 700 hp (520 kW). It was at the insistence of the British prime minister Winston Churchill in mid-1940 that the LCT was created. It was later developed into the landing craft mechanised. It weighed 16 tons, with a draught of 6 feet 6 inches (1.98 m), and was capable of about 6 knots (11 km/h 6.9 mph). In 1926, the first motor landing craft (MLC1) was built by the Royal Navy. Winston Churchill, Memo to War Department, 1940
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