Data Quality85%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the naval guns category.
01 / Overview
AK-257
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL GUNS · EARLY COLD WAR
6
PERFORMANCE/PRICE
94
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the naval guns category, regardless of era.
02 / Specs & Design
◎General4MOD.4
- Weapon Typenaval gun
- Service Entry Year1958
- Diameter57 mm
- In ServiceYes
◈Guidance & Homing5MOD.5
- GuidedNo
- Guidance Typeunguided
- Wire-GuidedNo
- Wake-HomingNo
- Acoustic HomingNo
▣Performance1MOD.1
- Propulsion Typenone
◇Warhead3MOD.3
- Warhead TypeHE
- Fuze Typecontact
- Nuclear-CapableNo
◆Platform4MOD.4
- Launch PlatformShip / Surface
- Submarine-LaunchedNo
- Ship-LaunchedYes
- Air-LaunchedNo
▤Warhead Detail2MOD.2
- Detonation Mechanism / Fuzeimpact
- Explosive Filler TypeHE
03 / History
SERVICE LIFESPANStill in Service
- 1958Production started
68
years in service
1
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
05 / MASS Score
NAVAL GUNS RANKING Naval Guns · Early Cold War
MASS RANKINGSMASS ↗
ⓘ Rankings are within theNaval Gunscategory.
📖 TERMS ON THIS PAGE2terms
Surface ship from which a torpedo is launched, typically a destroyer, cruiser, or dedicated torpedo boat.
Ship-launched: a torpedo designed to be deployed from surface warships using onboard launch tubes or deck-mounted launchers.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources