LK II

Leichter Kampfwagen II
The M/21-29 at theGerman Tank Museum,modified back to its original German design
Type	Light tank
Place of origin	Germany
Specifications
Mass	8.75 t
Length	5.1 m
Width	1.9 m (6 ft 3 in)
Height	2.5 m (8 ft 2 in)
Crew	3
Armor	8-14 mm
Main armament	37mmKrupp/57mm Maxim-Nordenfelt
Engine	Daimler-Benz 4-cylinder 60 hp (45 kW)
Suspension	unsprung
Operational range	65–70 km (40–43 mi)
Maximum speed	14–18 km/h (8.7–11.2 mph)

TheLeichter Kampfwagen II( "light combat vehicle" ), commonly known as theLK II,was alight tankdesigned and produced in limited numbers inGermanyin the last year ofWorld War I.A development of theLK I,it incorporated a fixed rear superstructure and had two distinct configurations; one variant being armed with theMG 08/15,and the other being armed with a5.7 cm Maxim-Nordenfeltgun. Its armor was 8 to 14 mm thick, which led to a total weight of 8.75 tons. Power was provided by aDaimler-BenzModel 1910 4-cylinder 55-60 hp gasoline engine, giving a maximum speed of 14 to 18 km/h with range of 65–70 km.

The LK II was designed by German engineer and automobile designerJoseph Vollmer,who also designed theA7V,theK-Wagenand theLK I.Vollmer was appointed to the position of chief designer for the German War Department's motor vehicle section

Only two prototypes were produced by June 1918, and were followed by orders for 580 tanks, which were never completed.

Stridsvagn m/21-29

Stridsvagn m/21-29
A Swedish m/21 tank
Type	Light tank
Place of origin	Sweden
Service history
In service	1922-1939
Used by	Sweden
Production history
Designer	AB Landsverk
Manufacturer	AB Landsverk /NOHAB
No.built	10
Specifications
Mass	9.7 short tons (8.8 t; 8.7 long tons)
Length	5.7 m (19 ft)
Width	2.05 m (6 ft 9 in)
Height	2.52 m (8 ft 3 in)
Crew	4
Armor	4-14 mm
Main armament	2x ksp m/14 (Stridsvagn m/21), 2x ksp m/14-29 (Stridsvagn m/21/29)
Engine	Benz 1910 (Stridsvagn m/21), Scania 1554 (Stridsvagn m/21-29) 55 hp, 85 hp
Maximum speed	16 to 18 km/h (9.9 to 11.2 mph)

Sweden

After the war, the Swedish government bought parts for 10 examples in secrecy for 200,000Swedish kronor.The parts were shipped under the pretence of being boiler plates and agricultural equipment and then assembled in Sweden as theStridsvagn m/21(Strv m/21 for short), which was essentially an improved version of the LK II prototype. The Strv m/21 was powered by asleeve valveengine located in the front, the driver and crew being in the rear. The suspension and running gear was protected by armored skirts. Ten of these tanks were built, their armament a single6.5 mm (0.26 in)Schwarzlose machine gun.

In 1929, five were rebuilt to create theStrv m/21-29variant which was armed with a 37mm gun or two machine guns and was powered by aScania-Vabisengine. The Strv m/21-29 was an upgraded version of the fm/21. The modifications included a more powerful engine, a newalternator,and external lighting.One of these improved vehicles was driven byHeinz Guderianduring a visit to Sweden in 1929.

The Germans later bought a main share of theLandsverk Companyand made Otto Merker the main designer and in 1931, it produced theStrv m/31(L-10), which was the first tank produced in Sweden.

The Strv m/21-29 remained in service until 1938. A surviving example can be seen at theDeutsches PanzermuseumatMunster,Germany, and both strv m/21 and strv m/21-29 was displayed at the Axvall Tank Museum in Sweden.

One Strv m/21-29 is in the early stages of being restored to full working order in Sweden. As of 2018, the tank has been restored to running condition, and is now on display at thesv:Försvarsfordonsmuseet ArsenaleninSträngnäs.