Data Quality88%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the torpedoes category.
01 / Overview
British 21 inch torpedo
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TORPEDOES · EARLY COLD WAR
10
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the torpedoes category, regardless of era.
02 / Specs & Design
◎General6MOD.6
- Weapon Typeheavy torpedo
- Service Entry Year1955
- Weight1,282 kg
- Length6.7 m
- Diameter533.4 mm
- In ServiceYes
◈Guidance & Homing5MOD.5
- GuidedNo
- Guidance Typeunguided
- Wire-GuidedNo
- Wake-HomingNo
- Acoustic HomingNo
▣Performance4MOD.4
- Propulsion Typewet heater
- Top Speed45 kn
- Range16.459 km
- Operating Depth243.84 m
◇Warhead4MOD.4
- Warhead Typeblast
- Warhead Weight181 kg
- Explosive Filler181 kg
- Nuclear-CapableNo
◆Platform5MOD.5
- Launch PlatformSubmarine
- Submarine-LaunchedYes
- Ship-LaunchedYes
- Air-LaunchedNo
- Launch Tube Diameter533 mm
▤Warhead Detail3MOD.3
- Detonation Mechanism / Fuzecontact
- Explosive Filler Weight181 kg
- Explosive Filler TypeTNT
03 / History
SERVICE LIFESPANStill in Service
- 1914First deployment: World War I
- 1955Production started
71
years in service
1
countries operating
ⓘ The producing country still actively operates it. 6 countries retired it.
04 / Operators
Operator Countries7country
05 / MASS Score
TORPEDOES RANKING Torpedoes · Early Cold War
MASS RANKINGSMASS ↗
78TORPEDOES10EARLY COLD WAR · TORPEDOES455UNITED KINGDOM · ALL WEAPONS27PERFORMANCE/PRICE · TORPEDOES
ⓘ Rankings are within theTorpedoescategory.
📖 TERMS ON THIS PAGE3terms
Ship-launched: a torpedo designed to be deployed from surface warships using onboard launch tubes or deck-mounted launchers.
A watercraft capable of independent operation underwater, primarily used for naval warfare, research, or exploration.
Designation for intercontinental ballistic missiles (ICBMs) deployed and launched from submerged submarines.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources