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Trident
Photo: National Museum of the U.S. Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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Trident

SLBM · United States · 1979
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Trident

Trident
Trident Photo: National Museum of the U.S. Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Range
95
Payload / MIRV
90
Accuracy
85
Platform Survivability
98
BMD Penetration
90
Readiness
95
Reliability
92
Second-Strike Value
100
Strategic Impact
100
Technology
85
Origin United States
ManufacturerLockheed Martin Space
CategorySLBM
EraCold War
In service1979
Operators2 countries
Data Quality84%
MASS(Military Archive Scoring System)
94
SLBM MASS Rating
1/12
Cold War
1/30
All-Time
SLBM · 10 axes scored
Range
95
Payload / MIRV
90
Accuracy
85
Platform Survivability
98
BMD Penetration
90
Readiness
95
Reliability
92
Second-Strike Value
100
Strategic Impact
100
Technology
85
ⓘ Regardless of era, the same scoring system applies to all units in the slbm category.
01 / Overview
Trident
Category
Prime contractor
Production
1979–
Unit Price (current)
$100.2M↗ 43% inflation · 2011→2025
Original Price
$70.0M (2011)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
SLBM · COLD WAR
1
PERFORMANCE/PRICE
80
UNIT COST (2025 USD)
$100.2M
Original: $70.0M (2011)
Inflation: +%43
94
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
  • Length13.41 m
  • Diameter2.11 m
  • Launch Weight58,967 kg
  • In ServiceYes
◈Propulsion6MOD.6
▣Performance3MOD.3
◇Accuracy & Re-Entry3MOD.3
◆Warhead6MOD.6
▤Basing1MOD.1
⬢Production2MOD.2
  • Operators2
  • First Test1977
03 / History
SERVICE LIFESPANStill in Service
  1. 1979Production started
47
years in service
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.
A depressed-trajectory refers to a suborbital ICBM flight path with a lower than normal apogee, reducing warning times and allowing for a surprise attack.
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.
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 →