A barge for landing tanks. There were 11 categories of LCT (Mark 1 thru 9, LCT Armoured and LCT Rocket), launched initially by the British, then by the Americans. Varying according to category, the LCTs measured between 117 and 226 feet long (between 35 and 69 m) and could transport from three 40-tonne tanks up to 8 heavy tanks, trucks or cargo ranging from 250 to 350 tonnes. LCTs were armed with cannons or machine guns.
Find out more : note on ONI 226