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EthanAllen-classsubmarine

Ballistic Missile Submarines (SSBN) · United States · 1960
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EthanAllen-classsubmarine

Ethan Allen-class submarine
Ethan Allen-class submarine Photo: Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Stealth
40
Missile Payload
30
Survivability
50
Endurance
60
Diving Depth
55
Sensors
45
Reliability
50
Second-Strike Capability
40
Strategic Impact
55
Technology
35
Origin United States
ManufacturerGeneral Dynamics Electric Boat
CategoryBallistic Missile Submarines (SSBN)
EraEarly Cold War
In service1960–1963
Operators1 countries
Quantity5
Data Quality84%
44
Ballistic Missile Submarines (SSBN) MASS Rating
4/5
Early Cold War
29/33
All-Time
Ballistic Missile Submarines (SSBN) · 10 axes scored
Stealth
40
Missile Payload
30
Survivability
50
Endurance
60
Diving Depth
55
Sensors
45
Reliability
50
Second-Strike Capability
40
Strategic Impact
55
Technology
35
ⓘ Regardless of era, the same scoring system applies to all units in the ballistic missile submarines (ssbn) category.
01 / Overview
Ethan Allen-class submarine
Production
1960–1963
Quantity
5
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
BALLISTIC MISSILE SUBMARINES (SSBN) · EARLY COLD WAR
4
PERFORMANCE/PRICE
50
UNIT COST (2025 USD)
—
44
ballistic missile submarines (ssbn) category
ⓘ Performance/Price and MASS score are computed across all units in the ballistic missile submarines (ssbn) category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
  • Hull ClassificationSSBN
  • Submarine TypeFleet Ballistic Missile (FBM)
  • Builder / ShipyardGeneral Dynamics Electric Boat; Newport News Shipbuilding
  • Laid Down1959
  • Commissioned1961
  • Boats in Class5
  • In ServiceNo
◈Displacement & Dimensions5MOD.5
  • Surfaced Displacement6,946 t
  • Submerged Displacement7,884 t
  • Length124.968 m
  • Beam10.089 m
  • Draft9.1 m
▣Propulsion8MOD.8
◇Diving & Endurance2MOD.2
  • Test Depth396.24 m
  • Complement (crew)140
◆Armament8MOD.8
▤Stealth1MOD.1
⬢Production2MOD.2
  • First of Class1961
  • Operators1
▲Fleet Status8MOD.8
  • Completed5
  • Active0
  • Under Construction0
  • Planned0
  • Cancelled0
  • Lost0
  • Retired5
  • Preserved0
03 / History
SERVICE LIFESPANStill in Service
  1. 1960Production started
  2. 1961Entered service
  3. 1963Production ended
66
years in service
3
years in production
5
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Inventory1country · 5units
5active
📖 TERMS ON THIS PAGE3terms
Anti-ship missiles are guided missiles designed to engage and destroy naval vessels. They are typically used by aircraft, ships, or submarines to attack enemy ships.
Ballistic missiles are rocket‑propelled weapons that follow a ballistic trajectory after launch, delivering warheads over long distances; submarine‑launched variants (SLBMs) are fired from submerged submarines.
Relating to or using nuclear energy, typically fission, for propulsion or power generation in military vessels.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Ballistic Missile Submarines (SSBN) entry →