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limpet mine
Photo: HM Government · Wikimedia Commons · OGL v1.0
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limpetmine

Naval Mines · United States · 1939
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limpetmine

limpet mine
limpet mine Photo: HM Government · Wikimedia Commons · OGL v1.0
MASS (Military Archive Scoring System) 62
* Absolute score — assessed within category · no era adjustment
Lethality
60
Concealment
90
Target Discrimination
10
Trigger Sophistication
20
Anti-Sweep Capability
85
Reliability
80
Deployment Versatility
75
Dormancy Endurance
70
Technology
30
Cost-Effectiveness
95
Methodology ↗ → Naval Mines ranking
Origin United States
CategoryNaval Mines
EraWorld War II
In service1939
Operators34 countries
⬇ Overview
⚙ Specs
⊕ History
⊕ Operators
⚖ MASS Score
📚 Sources
Data Quality88%
MASS(Military Archive Scoring System)
⊟ Naval Minesranking ↗methodology ↗
62
Naval Mines MASS Rating
12/17
World War II
25/39
All-Time
Naval Mines · 10 axes scored
Lethality
60
Concealment
90
Target Discrimination
10
Trigger Sophistication
20
Anti-Sweep Capability
85
Reliability
80
Deployment Versatility
75
Dormancy Endurance
70
Technology
30
Cost-Effectiveness
95
ⓘ Regardless of era, the same scoring system applies to all units in the naval mines category.
01 / Overview
limpet mine
Category
Naval Mines
Country
United States
Production
1939–
Operators
34 countries
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL MINES · WORLD WAR II
12
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
MASS SCORE ↗
62
naval mines category
ⓘ Performance/Price and MASS score are computed across all units in the naval mines category, regardless of era.
02 / Specs & Design
◎General3MOD.3
  • Weapon Typelimpet mine
  • Service Entry Year1939
  • In ServiceYes
◈Guidance & Homing4MOD.4
▣Performance1MOD.1
  • Propulsion Typemanual (diver-carried)
◇Warhead3MOD.3
  • Warhead Typehigh explosive
  • Fuze Typetime fuse or anti-handling device
  • Nuclear-CapableNo
◆Platform4MOD.4
▤Warhead Detail1MOD.1
  • Detonation Mechanism / Fuzetime delay or turbine
03 / History
SERVICE LIFESPANStill in Service
  1. 1939Production started
87
years in service
32
countries operating
ⓘ The producing country still actively operates it. 2 countries retired it.
04 / Operators
Operator Countries34country
AustraliaACTIVEBrazilACTIVECanadaACTIVEChileACTIVEColombiaACTIVEEgyptACTIVEFranceACTIVEGermanyACTIVEIndiaACTIVEIndonesiaACTIVEIranACTIVEIraqACTIVEIsraelACTIVEItalyACTIVEJapanACTIVEMalaysiaACTIVEMexicoACTIVENew ZealandACTIVENorwayACTIVEPakistanACTIVE
📖 TERMS ON THIS PAGE1terms
Ground / Coastal
Launch platform classification indicating a torpedo is deployed from land-based or ship-based systems rather than aircraft or submarines.
These terms are listed automatically because they appear on this page.full encyclopedia →
Naval Mines World War II United States
📚 Sources
📖 ENCYCLOPEDIA Browse the Naval Mines entry →