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UGM-133 Trident II
Photo: Unknown author · Wikimedia Commons · Public domain
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UGM-133TridentII

SLBM · United States · 1990
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UGM-133TridentII

UGM-133 Trident II
UGM-133 Trident II Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Range
95
Payload / MIRV
90
Accuracy
85
Platform Survivability
90
BMD Penetration
80
Readiness
85
Reliability
90
Second-Strike Value
95
Strategic Impact
95
Technology
90
Origin United States
ManufacturerLockheed Martin
CategorySLBM
EraCold War
In service1990
Operators2 countries
Quantity844
Data Quality83%
MASS(Military Archive Scoring System)
90
SLBM MASS Rating
2/12
Cold War
2/30
All-Time
SLBM · 10 axes scored
Range
95
Payload / MIRV
90
Accuracy
85
Platform Survivability
90
BMD Penetration
80
Readiness
85
Reliability
90
Second-Strike Value
95
Strategic Impact
95
Technology
90
ⓘ Regardless of era, the same scoring system applies to all units in the slbm category.
01 / Overview
UGM-133 Trident II
Category
Prime contractor
Production
1990–
Quantity
844
Unit Price (current)
$87.6M↗ 183% inflation · 1987→2025
Original Price
$30.9M (1987)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
SLBM · COLD WAR
2
PERFORMANCE/PRICE
80
UNIT COST (2025 USD)
$87.6M
Original: $30.9M (1987)
Inflation: +%183
90
slbm category
ⓘ 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 Year1990
  • DesignerLockheed Martin Space
  • Length13.57 m
  • Diameter2.11 m
  • Launch Weight58,967 kg
  • In ServiceYes
◈Propulsion6MOD.6
▣Performance6MOD.6
◇Accuracy & Re-Entry5MOD.5
◆Warhead7MOD.7
▤Basing5MOD.5
⬢Production3MOD.3
  • Total Production844
  • Operators2
  • First Test1989
▲Warhead Detail3MOD.3
  • Detonation Mechanism / Fuzenuclear fission/fusion
  • Explosive Filler Weight150 kg
  • Explosive Filler TypeHMX-based composite
03 / History
SERVICE LIFESPANStill in Service
  1. 1990Production started
36
years in service
844
units produced
2
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries2country
📖 TERMS ON THIS PAGE10terms
Designation for an ICBM equipped with a canister launcher, enabling rapid deployment and reduced exposure during launch.
A missile launch method where the missile is ejected from its launch tube by gas pressure before the rocket motor ignites, typically used in submarine-launched ballistic missiles.
Guidance system combining inertial navigation (self-contained motion tracking) with GPS (satellite-based positioning) for precise trajectory correction in ballistic missiles.
MIRV (Multiple Independently targetable Reentry Vehicle) is a ballistic missile payload that carries several warheads, each capable of being aimed at separate targets after reentry.
A Maneuverable Re-Entry Vehicle (MaRV) is a re-entry vehicle used in ICBMs that can adjust its trajectory during atmospheric re-entry to enhance accuracy and survivability.
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
📖 ENCYCLOPEDIA Browse the SLBM entry →