Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Pay Chart (2023) Military Ranks

Land Systems / Battlefield

Stridsvagn m/21 (Strv m/21)

Light Tank [ 1922 ]

Influenced by the German LKII light tank appearing at the end of World War 1, the Strv m/21 began a local Swedish tank industry that evolved up to World War 2.

Authored By: Staff Writer | Last Edited: 02/01/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

During the latter stages of World War 1 (1914-1918), the Germans were working on a light tank design to be used in infantry support actions. The effort was headed by Joseph Vollmer and began with the Leichter Kampfwagen I (LK I) which appeared in two prototype examples by June of 1918. These were to served solely as the basis for the upcoming production-quality "LK II" which was armed with a 37mm cannon and ordered in 580 examples. However, the end of the war in November of 1918 put an end to this order as well as further work on the type.

In the post-war years, the government of Sweden secretly ordered components for ten of the LK II tanks and these arrived in-country to be assembled under the designation of "Stridsvagn m/21" (Strv m/21). The initiative began Sweden's long-running local tank history which continues to this day. Unlike the cannon armed LK II vehicles of the Germans, the Strv m/21 was outfitted with 2 x 6.5mm Madsen ksp m/14 machine guns. Its combat weight was 9.7 tons and length was 19 feet with a width of 6.7 feet and height of 8.3 feet. Road speeds peaked at 10 miles per hour. Another change was the addition of a fourth crew member.

The original German tank was based on a Daimler automobile with an armored superstructure simply added over the existing chassis. As such, the internal configuration mimicked that of a traditional automobile arrangement with the engine held in a forward compartment, the driver over the middle, and a passenger seating area at the rear. The two axles were retained though now mounting track idlers and drive sprockets instead, these driving a track-over-wheel arrangement at the side of each hull. An angled hull superstructure was fitted over the rear portion of the car and this encompassed the driver's position and fighting compartment for the three-man crew. A turret was installed over the compartment and was used to manage the primary armament.

In 1929, five of the original batch were rebuilt into refined forms, chief among the changes being the installation of a 37mm main gun. An alternative version carried two machine guns instead but both became powered by the local Scania-Vabis gasoline engine over the original Daimler-Benz 4-cylinder. Armor was also revised for improved protection but the same general lines were retained. The work begat the updated "Strv m/21-29" designation used to cover these vehicles.

The culmination of this early became the Stridsvagn m/31 of 1931 - also known as the "L-10" - which came from AB Landsverk and appeared as a very modern light tank for of the 1930s. It continued use of a 37mm main gun but the turret was now positioned more forward as seen in contemporaries. By this time, the German government managed a share of the company and added assistance to Sweden in design, development, and production of their first true indigenous tank. The line then continually evolved during the war years until the m/42 of 1943 which was the first Swedish tank to utilize a 75mm main gun.

The m/21 and m/21-29 tanks remained in service from 1922 to 1939, just prior to the fighting of World War 2 (1939-1945). Only the ten were ever procured but proved monumental in helping to solidify a local Sweden tank industry which continues today.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Service Year

Sweden national flag graphic


National flag of Sweden Sweden
(OPERATORS list includes past, present, and future operators when applicable)
Infantry Support
Support allied ground forces through weapons, inherent capabilities, and / or onboard systems.
Engage armored vehicles of similar form and function.

18.7 ft
5.7 m
6.7 ft
2.05 m
8.3 ft
2.52 m
19,401 lb
8,800 kg
9.7 tons
(Showcased structural values pertain to the base Stridsvagn m/21 (Strv m/21) production variant. Length typically includes main gun in forward position if applicable to the design)
Powerplant: 1 x Daimler-Benz 4-cylidner gasoline engine of 60 horsepower OR 1 x Scania-Vabis engine.
9.9 mph
(16.0 kph)
(Showcased performance specifications pertain to the base Stridsvagn m/21 (Strv m/21) production variant. Compare this entry against any other in our database)
1 x 37mm main gun OR 2 x 6.5mm Ksp m/14 machine guns.

Supported Types

Graphical image of a tank cannon armament
Graphical image of a tank medium machine gun

(Not all weapon types may be represented in the showcase above)
Not Available.

Stridsvagn m/21 (Strv m/21) - Base Series Designation.
Stridsvagn m/21-29 (Strv m/21-29) - Five examples rebuilt in 1929 with Scania-Vabis engine and improved armor protection. Armament either 37mm gun or 2 x machine guns.

Military lapel ribbon for the American Civil War
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of the Bulge
Military lapel ribbon for the Battle of Kursk
Military lapel ribbon for the Cold War
Military lapel ribbon for the Falklands War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Ukranian-Russian War
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental military vehicles

Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns / operations.

Images Gallery

1 / 1
Image from the Public Domain.


Disclaimer | Privacy Policy | Cookies

2023 Military Pay Chart Military Ranks DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing all American military medals and ribbons.

www.MilitaryFactory.com • All Rights Reserved • Content ©2003-