Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the attack submarines (ssn) category.
01 / Overview
Skate-class submarine
Category
Country
Production
1957–1959
Quantity
4
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
ATTACK SUBMARINES (SSN) · EARLY COLD WAR
4
PERFORMANCE/PRICE
55
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the attack submarines (ssn) category, regardless of era.
02 / Specs & Design
◎Identification7MOD.7
- Hull ClassificationSSN
- Submarine TypeAttack Submarine
- Builder / ShipyardGeneral Dynamics Electric Boat, Portsmouth Naval Shipyard, Mare Island Naval Shipyard
- Laid Down1955
- Commissioned1957
- Boats in Class4
- In ServiceYes
◈Displacement & Dimensions5MOD.5
- Surfaced Displacement2,271 t
- Submerged Displacement2,892 t
- Length81.4 m
- Beam7.62 m
- Draft6.45 m
▣Propulsion8MOD.8
- PropulsionNuclear
- Reactor TypeS3W/S4W
- Nuclear-PoweredYes
- Air-Independent Propulsion (AIP)No
- Shaft Power4,922 kW
- Propulsor Typesteam turbine
- Top Speed (surfaced)18 kn
- Top Speed (submerged)22 kn
◇Diving & Endurance2MOD.2
- Test Depth213 m
- Complement (crew)84
◆Armament7MOD.7
- Torpedo Tubes8
- Torpedo Tube Diameter533 mm
- Cruise MissilesNo
- Ballistic Missiles (SLBM)No
- SLBM Count0
- Anti-Ship MissilesYes
- Mine-Laying CapableYes
▤Stealth2MOD.2
⬢Production2MOD.2
- First of Class1957
- Operators1
▲Fleet Status7MOD.7
- Completed4
- Active0
- Under Construction0
- Cancelled0
- Lost0
- Retired4
- Preserved0
03 / History
SERVICE LIFESPANStill in Service
- 1957Production started
- 1959Production ended
69
years in service
2
years in production
4
units produced
1
countries operating
ⓘ The producing country still actively operates it.
05 / MASS Score
ATTACK SUBMARINES (SSN) RANKING Attack Submarines (SSN) · Early Cold War
MASS RANKINGSMASS ↗
26ATTACK SUBMARINES (SSN)4EARLY COLD WAR · ATTACK SUBMARINES (SSN)1793UNITED STATES · ALL WEAPONS23PERFORMANCE/PRICE · ATTACK SUBMARINES (SSN)
ⓘ Rankings are within theAttack Submarines (SSN)category.
📖 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.
Laying explosive mines underwater from a submarine.
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