Design of the Medium Mark C was typical for the time. The tank sported a rhomboidal shape with two long-running unsprung track systems fitted to both sides of the hull. The forward portion of the tracks was raised to help tackle battlefield obstacles such as trenches and mounds. Each track system was fitted to a rudimentary hull design to which was affixed a static superstructure. The superstructure gave a taller profile but, the same time, improved visibility for the crew via vision slits and machine gun ports for engaging enemy infantry. The tank commander was given a rotating turret atop the superstructure. The Medium Mark C sported a long hull and its layout made it a relatively good cross country negotiator - considering the European countryside was littered with battlefield debris and trench networks - the latter of which the Medium Mark C could better navigate over than her predecessors. Armor thickness was a reported 14mm, providing protection against small arms fire. Entry and exit was via hinged doors along the track hull sides.
The Medium Mark C was powered by a single Ricardo 6-cylinder gasoline engine developing 150bhp at 1,200rpm and tied to an epicycle transmission system. Maximum speed was limited to 7.9 miles per hour while range topped out at 75 miles. The engine was fitted into a separated compartment at the rear of the hull and made accessible to the crew from within the vehicle. The crew was comprised of the tank commander, driver, machine gunner and mechanic. Communication for the crew was via speaking tubes - helpful in combating the onboard noises developed by the engine and structure. Armament was up to five Hotchkiss-type 7.7mm (.303 caliber) defensive machine guns fitted to the superstructure on ball mounts - two placed forward, two single fittings along the side panels and a single fitting facing to the rear.
World War 2 tanks generally came in two forms - "male" and "female". This terminology basically dictated the type of primary armament afforded to each. The male version was typically fitted with cannon armament while the female version was outfitted with defensive machine guns. The Medium Tank C was only produced in its female form though a male form was planned and designed but never put into production. It would have fitted a 6-pounder gun to its forward superstructure. A battlefield recovery version was also nixed though one existing Medium Mark C did serve to evaluate a new transmission system for a time.
After 1925, the Medium Mark C was replaced by the Vickers Medium Mark I and Mark II tanks. The last Medium Mark C was melted down as late as 1940.
The Medium Mark C tank was deployed to Glasgow to help quell unrest in the 1921 strike. This effectively summarized the Medium Mark C's operational action history leaving the imagination to wonder of the tanks impact in the Great War should it have continued beyond November of 1918.
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