Sturmpanzerwagen Oberschlesien
Type	Assault Tank
Place of origin	German Empire
Service history
In service	Never used
Specifications
Mass	~19 t
Length	6.7 m (22 ft)
Width	2.34 m (7.7 ft)
Height	2.9 m (9.5 ft)
Crew	5
Armor	14 mm (0.55 in)
Main armament	1 x 57 mm (2.2 in) or 37 mm (1.5 in) cannon
Secondary armament	2 x 8 mm MG 08 machineguns
Engine	Argus As III[1] 190 hp (140 kW)
Power/weight	10 hp/t (7.4 kW/t)
Operational range	60 km (37 mi), ~100 km (62 mi) paved road[1]
Maximum speed	16 km/h (9.9 mph) on roads 9 km/h (5.6 mph) off road

The Sturmpanzerwagen Oberschlesien ("Assault tank Upper Silesia" from German: der Sturm, the assault; German: der Panzerwagen the tank) was a German tank project of the First World War. It was a radical design for a fast-moving, lightly armoured assault tank.

The Oberschlesien included a track which was placed under the tank and only wrapped around half of it. The design sacrificed armour for the sake of speed and only required a 180 hp (130 kW) engine for the 19 ton body, giving it a projected ground speed of 16 km/h (9.9 mph).

The tank featured such advanced features as the main armament mounted on top of the tank in a centrally placed revolving turret, separate fighting and engine compartments, a rear-mounted engine and a low track run.

History

Towards the end of the First World War it was clear that the only operational German tank, the A7V, was too expensive to produce and had too large a crew. Therefore, it was decided that a lighter tank was required which could spearhead assaults and which could be mass-produced.

Thirteen companies bid for the contract and in the middle of 1918, construction of a design by Captain Müller was assigned to the Oberschlesien Eisenwerk of Gleiwitz, which had partially completed two prototypes by October. The project received the pseudonym Oberschlesien (Upper Silesia).

Neither the ordered test models, nor the improved "Oberschlesien II" already planned were finished before the end of the war.