Image: Tetrarch (IWM)
YearNovember 1940
Vehicle TypeLight Tank
Origin & DesignerBritain/Metro-Cammell
Numbers Produced177
Crew3 (Commander, Gunner & Driver)
Main Armament1 x OQF 2 pdr L/50 Mk. IX Gun
Main Armament[@sponson_traverse]
Elevation-10° to +25°
Turret Traverse360° (Manual)
Gun Traverse[@gun_traverse]
Gun Mount[@gun_mounts]
Maximum Range[@maximum_range]
Armour Penetration[@armour_penetration]
Gun Sight[@gun_sight]
Secondary Armament1 x 7.92mm Besa Machine Gun (Coaxial)
Smoke Discharger2 x 4in Smoke Mortars
Ammunition Carried50 x 40mm & 2025 x 7.92mm Rounds
Combat Weight7.620 kg
Ground Clearance0.24m
Fording Depth0.91m
Trench Crossing1.52m
Obstacle Clearance0.50m
Climbing Ability30°
RadioNo. 19 Set
ArmourHull Front: 16mm.
Hull Sides: 16mm.
Hull Rear: 14mm.
Hull Top: 8mm.
Hull Bottom: 4mm.
Gun Mantle: 16mm. Turret Front: 16mm.
Turret Sides: 16mm.
Turret Rear: 14mm.
Turret Top: 8mm.
EngineMeadows MAT (Petrol)
Transmission5 Forward & 1 Reverse
Maximum Road Range225 km
Maximum Cross Country Range[@maximum_cross_country_range]
Maximum Water Range[@maximum_water_range]
Maximum Road Speed64 kph
Maximum Cross Country Speed45 kph
Maximum Water Speed[@maximum_water_speed]
NotesThe Tetrarch was another light tank designed by Vickers-Armstrong and produced by Metro-Cammell. The British army wanted a light tank that could carry a gun rather than a machine and the A17 got the go ahead. Production was slow due to priority going to cruisers and Infantry tanks. The army were well aware that light tanks fared badly when used in combat against other tanks. This along with the cooling problems that plagued the Tetrarch in high temperatures made them surplus to requirement. The tank was saved when the decision was made to develop a glider borne tank. The airborne arm was beginning to be formed and by 1941 they were selecting weapons to equip them in glider and parachute operations. In 1944 Test were made to develop the Hamilcar glider to carry the Tetrarch and these proved successful. The number of Tetrarchs in service was low, mainly due to twenty being supplied to Russia and more were lost during the invasion of Madagascar, so only fifty Tetrarchs were available to the Airborne. The glider borne Tetrarch’s were used in action on D-Day and were useful in a reconnaissance role. By the end of 1944 they were replaced the US designed M22 Locust.