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
BL 18 inch Mk I gun
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL GUNS · WORLD WAR I
6
PERFORMANCE/PRICE
78
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
◎General6MOD.6
- Weapon TypeBreech-loading naval rifle
- Service Entry Year1918
- Weight151,100 kg
- Length18.898 m
- Diameter457.2 mm
- In ServiceYes
◈Guidance & Homing5MOD.5
- GuidedNo
- Guidance Typeunguided
- Wire-GuidedNo
- Wake-HomingNo
- Acoustic HomingNo
▣Performance4MOD.4
- Propulsion Typegunpowder (cordite)
- Range28.712 km
- Maximum Range (gun)37.19 km
- Rate of Fire (gun)1
◇Warhead4MOD.4
- Warhead Typearmour-piercing, capped (APC)
- Warhead Weight1,509 kg
- Explosive Filler110 kg
- Nuclear-CapableNo
◆Platform4MOD.4
- Launch PlatformShip / Surface
- Submarine-LaunchedNo
- Ship-LaunchedYes
- Air-LaunchedNo
▤Production2MOD.2
- Total Production3
- Operators1
⬢Warhead Detail3MOD.3
- Detonation Mechanism / Fuzepercussion
- Explosive Filler Weight110 kg
- Explosive Filler Typehigh explosive (HE) or common pointed capped (CPC)
03 / History
SERVICE LIFESPANRetired
- 1914First deployment: World War I
- 1918Production started
- 1920Production ended
108
years in service
2
years in production
3
units produced
0
countries operating
ⓘ 1 countries retired it.
05 / MASS Score
NAVAL GUNS RANKING Naval Guns · World War I
MASS RANKINGSMASS ↗
104NAVAL GUNS6WORLD WAR I · NAVAL GUNS498UNITED KINGDOM · ALL WEAPONS35PERFORMANCE/PRICE · NAVAL GUNS
ⓘ 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