Strv fm/21
Tier I Light Tank Sweden

Strv fm/21

Tank ID 129

Vehicle description

Wargaming Tankopedia

The LK II tank was developed in Germany in 1918. The vehicle underwent trials, and the German army placed an order for 1,000 tanks. However, the order was not completed before the end of World War I. In 1920, Germany sold 10 LK II vehicles to Sweden, which entered service under the designation Stridsvagn fm/21. In 1929-1932, the vehicles underwent modernization and received more powerful engines and improved frontal armor. All modernized vehicles were designated Stridsvagn m/21-29 and were used for training purposes until 1940.

Description from the Wargaming Tankopedia · Language selected automatically

Technical profile

Standard configuration

Hit points

280

Weight

9.0 t

Forward speed

25 km/h

Reverse speed

14 km/h

View range

290 m

Signal range

265 m

Armour

Front Sides Rear
Hull 14 14 14
Turret 14 14 14

Engine: Daimler-Benz m/1910 · 110 hp

Radio: 1 W Sv

Armament

Standard gun and ammunition

37 mm kan m/Škoda

Calibre 37 mm
Reload time 2.6 s
Aiming time 1.7 s
Dispersion 0.44
Rate of fire 23.08 /min
Ammo capacity 230

Shell types

AP · armour-piercing Damage 30 / 40 / 50

Penetration 25 / 33 / 41 mm

AP · armour-piercing Damage 30 / 40 / 50

Penetration 33 / 44 / 55 mm

HE · high explosive Damage 34 / 45 / 56

Penetration 14 / 18 / 23 mm

Marks of Excellence

Damage thresholds

Combined Damage (Damage + Assist + Tracking)

Combined damage
1 Mark ≥ 65 %
376
2 Marks ≥ 85 %
547
3 Marks ≥ 95 %
706

Approximation based on WN8 expected values — not an official Wargaming figure.

WN8 Expected Values

XVM reference

XVM Expected Values for WN8 calculation (per battle)

Per battle (avg.)
Avg. damage 228
Avg. spotted 1.25
Avg. kills 1.40
Avg. defence 1.42
Exp. win rate 57.58 %

Community stats

Measured, not estimated

Average across every profile stored on WG-Watch — real battles instead of expected values.

Win rate

56.80 %

Avg. WN8

1,539

Battles

1,192

As of Aug 31, 2026

Rank 3 of 12 at Tier I

Best players on this tank

By WN8

From the stored profiles, minimum 50 battles on this vehicle. Updated daily.

# Player WN8 Battles Win rate
1 __FEH0MEH__ eu 4,871 111 88.29 %
2 marius1567 eu 2,127 83 53.01 %
3 Manitoba_Defender eu 1,434 138 59.42 %

Commonly compared

Tank Meta MoE Tracker To the Hall of Tanks Compare with another tank