Mark XIII

Mark XIII or Mark 13 often refers to the 13th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."

Mark XIII or Mark 13 can specifically refer to:

In technology

In military and weaponry

• Mark 13 torpedo, US Navy's most common air-dropped torpedo in World War II
• Mk XIII railway gun, a purpose-built gun design that augmented British surplus 9.2-inch naval guns mounted on rail cars for land use
• Supermarine Spitfire PR Mk XIII; lightly armed low-altitude Rolls-Royce Merlin-powered reconnaissance aircraft, first tested March 1943
• Vickers Wellington GR Mk XIII; 1944 Coastal Command medium bomber with ordinary nose turret, mast radar and no waist guns
• De Havilland Mosquito NF Mk XIII, a night fighter variant that replaced nose guns with radar
• Mark 13 nuclear bomb (1951–1954), an American experimental weapon that never entered service
• Centurion Mk 13 (1959–1962), a British main battle tank fitted with infrared equipment and a ranging gun
• MK-13 Mod 0 Smoke and Illumination Flare (1960), a day-night rescue signaling device used in the Vietnam War
• Mk 13 missile launcher, a single arm guided missile launching system
• Mk 13 Mod 0 or EGLM (2004), a 40 mm grenade launcher

Other technologies

• Cooper Mk XIII (1959), a 500 cc rear-engined racing car

Other uses

• Mark 13 and Mark XIII, the thirteenth chapter of the Gospel of Mark in the New Testament of the Christian Bible.
• Hardware (1990), a science fiction film also known as M.A.R.K. 13
  • "M.A.R.K. 13", the fictional prototype killer droid in Hardware

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