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Light Tank Mk IV
Photo: Photographer not identified. "Official photograph". · Wikimedia Commons · Public domain
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LightTankMkIV

Tanks · United Kingdom · 1939
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LightTankMkIV

Light Tank Mk IV
Light Tank Mk IV Photo: Photographer not identified. "Official photograph". · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Firepower
10
Protection
15
Mobility
60
Technology
5
Reliability
40
Crew Survivability
10
Operational Range
30
Logistics
50
Historical Performance
20
Strategic Impact
5
Origin United Kingdom
CategoryTanks
EraWorld War II
In service1939–1940
Operators7 countries
Quantity1,200
Data Quality88%
MASS(Military Archive Scoring System)
23
Tanks MASS Rating
125/140
World War II
481/563
All-Time
Tanks · 10 axes scored
Firepower
10
Protection
15
Mobility
60
Technology
5
Reliability
40
Crew Survivability
10
Operational Range
30
Logistics
50
Historical Performance
20
Strategic Impact
5
ⓘ Regardless of era, the same scoring system applies to all units in the tanks category.
01 / Overview
Light Tank Mk IV
Category
Production
1939–1940
Quantity
1,200
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TANKS · WORLD WAR II
125
PERFORMANCE/PRICE
45
UNIT COST (2025 USD)
—
23
tanks category
ⓘ Performance/Price and MASS score are computed across all units in the tanks category, regardless of era.
02 / Specs & Design
◎General4MOD.4
  • Tank ClassificationLight Tank
  • GenerationInterwar
  • Combat Weight3.7 t
  • Crew Size2
▣Protection5MOD.5
◇Mobility8MOD.8
  • Engine Power70 hp
  • Power-to-Weight Ratio18.9 hp/t
  • Fuel TypePetrol
  • Transmission TypeManual
  • Suspension TypeCoil Spring
  • Max Road Speed64 km/h
  • Max Off-Road Speed40 km/h
  • Operational Range (Road)200 km
◆Dimensions3MOD.3
  • Length (Hull)3.6 m
  • Width2.1 m
  • Height2 m
▲Production & Service1MOD.1
  • Current Service StatusRetired
03 / History
SERVICE LIFESPANStill in Service
  1. 1939Production started
  2. 1940Production ended
87
years in service
1
years in production
1,200
units produced
1
countries operating
ⓘ The producing country still actively operates it. 6 countries retired it.
04 / Operators
📖 TERMS ON THIS PAGE6terms
Coil spring: a helical metal spring used in vehicle suspension to absorb shocks and maintain wheel contact, compressing under load.
A tank with reduced armor and weight for increased mobility.
Manual: a tank transmission in which the driver selects gear changes manually, typically using a clutch pedal and gear lever to engage gears.
A refined product derived from crude oil, used as a fuel for internal combustion engines. A volatile, flammable liquid mixture of hydrocarbons.
Armour made from steel plates joined by rivets.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Tanks entry →