Light Tank Mk I to Mk V

The Light Tank Mark I to Mark V were a series of related British light tank designs produced by Vickers for the British Army between the two World Wars. They grew out of the Carden-Loyd tankette and the light tank that Carden developed privately, and each weighed around 5 long tons and could reach about 30 mph on roads. Armament was a machine gun only, using Vickers machine guns of .303 inch or .5 inch calibre, and the Mark V added a third crew member. The engine is described as a Meadows six-cylinder petrol unit. The marks were made in small numbers, for example 16 Mark IIs from 1929 and 42 Mark IIIs from 1934, and they were used mostly for training, with some service in India and with the Royal Netherlands East Indies Army. They stayed in training use until around 1942, and their line led to the Light Tank Mk VI.