Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the torpedoes category.
01 / Overview
Mark 21 torpedo
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TORPEDOES · WORLD WAR II
12
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
◎General5MOD.5
- Weapon TypeAnti-surface ship torpedo
- Weight1,043 kg
- Length4.09 m
- Diameter572 mm
- In ServiceNo
◈Guidance & Homing5MOD.5
- GuidedYes
- Guidance Typepassive acoustic homing
- Wire-GuidedNo
- Wake-HomingNo
- Acoustic HomingYes
▣Performance2MOD.2
- Propulsion TypeElectric
- Top Speed25 kn
◇Warhead3MOD.3
- Explosive Filler181 kg
- Fuze Typecontact
- Nuclear-CapableNo
◆Platform4MOD.4
- Launch PlatformAircraft
- Submarine-LaunchedNo
- Ship-LaunchedNo
- Air-LaunchedYes
▤Warhead Detail3MOD.3
- Detonation Mechanism / FuzeMark 8 contact exploder
- Explosive Filler Weight181 kg
- Explosive Filler TypeHBX
03 / History
SERVICE LIFESPANRetired
- 1943Production started
83
years in service
0
years in production
21
units produced
0
countries operating
ⓘ 1 countries retired it.
05 / MASS Score
TORPEDOES RANKING Torpedoes · World War II
MASS RANKINGSMASS ↗
ⓘ Rankings are within theTorpedoescategory.
📖 TERMS ON THIS PAGE4terms
A torpedo guidance method using sound waves emitted by a target to determine its location and trajectory.
Capability of launching an anti-tank guided missile from an airborne platform, such as a helicopter or aircraft.
A powered, heavier-than-air vehicle capable of controlled flight, used for military operations including launching torpedoes.
A guided bomb is a munition that uses a guidance system to modify its flight path in real-time to ensure accuracy.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources