Data Quality83%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the slbm category.
01 / Overview
M20 (missile)
Category
Country
Prime contractor
Production
1977–1991
Quantity
100
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
ⓘ Performance/Price and MASS score are computed across all units in the slbm category, regardless of era.
02 / Specs & Design
◎General7MOD.7
- Missile ClassSLBM
- Service Entry Year1977
- DesignerAérospatiale, Space and Strategic Systems Division
- Length10.4 m
- Diameter1.5 m
- Launch Weight20,000 kg
- In ServiceNo
◈Propulsion4MOD.4
- Propulsion Typesolid-fuel rocket
- Number of Stages2
- Fuel Typesolid propellant
- Solid-FuelYes
▣Performance2MOD.2
- Minimum Range3,000 km
- Maximum Range3,000 km
◇Accuracy & Re-Entry3MOD.3
- Circular Error Probable (CEP)1,000 m
- Guidance TypeInertial / GPS
- Penetration Aids / DecoysYes
◆Warhead7MOD.7
- Warhead TypeTN 60 or TN 61
- NuclearYes
- ThermonuclearYes
- Yield (per warhead)1,200
- MIRVNo
- Warhead / RV Count1
- Conventional-CapableNo
▤Basing5MOD.5
- Basing Modesubmarine
- Silo-BasedNo
- Road-Mobile (TEL)No
- Rail-MobileNo
- Submarine-LaunchedYes
⬢Production2MOD.2
- Total Production100
- Operators1
▲Warhead Detail1MOD.1
- Explosive Filler Type1 × TN 60 or TN 61, with penetration aids
03 / History
SERVICE LIFESPANStill in Service
- 1977Production started
- 1991Production ended
49
years in service
14
years in production
100
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
SLBM RANKING SLBM · Cold War
MASS RANKINGSMASS ↗
ⓘ Rankings are within theSLBMcategory.
📖 TERMS ON THIS PAGE6terms
Guidance system combining inertial navigation (self-contained motion tracking) with GPS (satellite-based positioning) for precise trajectory correction in ballistic missiles.
Relating to or using nuclear energy, typically fission, for propulsion or power generation in military vessels.
Countermeasures deployed by ballistic missiles to evade interception, including decoys, chaff, or other systems to confuse missile defense radars.
Propellant consisting of a solid mixture of fuel and oxidizer, enabling long-term storage and immediate launch readiness.
Designation for intercontinental ballistic missiles (ICBMs) deployed and launched from submerged submarines.
Relating to nuclear weapons that derive destructive power from both fission and fusion reactions, typically used in intercontinental ballistic missiles.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources