Data Quality87%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the towed artillery & mortars category.
01 / Overview
12-inch coast defense mortar
Category
Country
Production
1895–1945
Quantity
476
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TOWED ARTILLERY & MORTARS · PRE-WWI / INDUSTRIAL AGE
38
PERFORMANCE/PRICE
40
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the towed artillery & mortars category, regardless of era.
02 / Specs & Design
◎General6MOD.6
- Service Entry Year1895
- Combat Weight13,208.832 kg
- Travel Weight71,276 kg
- Crew12
- Carriage TypeSplit Trail
- In ServiceYes
◈Ordnance7MOD.7
- Calibre304.8 mm
- Barrel Length (calibres)10
- Ordnance Typedeck-piercing (armor-piercing) shell
- Breech TypeScrew
- Recoil SystemHydro-Spring
- Muzzle BrakeNo
- Bore EvacuatorNo
▣Performance7MOD.7
- Minimum Range2.2 km
- Maximum Range (standard)13.4 km
- Muzzle Velocity457 m/s
- Rate of Fire (burst)1.3
- Rate of Fire (sustained)1
- Elevation45° to 70°
- Traverse360°
◇Ammunition6MOD.6
- Projectile Weight317.5 kg
- Ammunition Types700 lb deck-piercing shell, 1046 lb deck-piercing shell, 800 lb torpedo shell, 1000 lb torpedo shell
- HE RoundYes
- Cluster / DPICMNo
- Precision-Guided RoundNo
- MRSI CapableNo
◆Fire Control5MOD.5
▤Mobility5MOD.5
- Self-PropelledNo
- Prime Moverrailway carriage (M1896)
- Shoot-and-ScootNo
- AutoloaderNo
- Protected Crew CabNo
⬢Dimensions1MOD.1
- Length4.089 m
▲Production2MOD.2
- Total Production476
- Production Start1,890 year
◎Self-Propelled Chassis1MOD.1
03 / History
SERVICE LIFESPANRetired
- 1895Production started
- 1914First deployment: World War I
- 1945Production ended
131
years in service
50
years in production
476
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Conflicts
12-INCH COAST DEFENSE MORTAR · CONFLICTS SERVED IN0% win·100% loss
Total Conflicts
1
Victories
0
Ongoing
0
Losses
1
ⓘ Shown only from conflicts recorded in our database.
06 / MASS Score
TOWED ARTILLERY & MORTARS RANKING Towed Artillery & Mortars · Pre-WWI / Industrial Age
MASS RANKINGSMASS ↗
291TOWED ARTILLERY & MORTARS38PRE-WWI / INDUSTRIAL AGE · TOWED ARTILLERY & MORTARS2667UNITED STATES · ALL WEAPONS286PERFORMANCE/PRICE · TOWED ARTILLERY & MORTARS
ⓘ Rankings are within theTowed Artillery & Mortarscategory.
📖 TERMS ON THIS PAGE4terms
High Explosive (HE) round: an artillery or mortar projectile containing explosive filler designed to inflict damage through blast and fragmentation effects.
A breech mechanism in artillery where a cylindrical plug with spiral threads is rotated to open or close the breech.
A towed artillery carriage configuration where the gun is transported with its two wheels separated, allowing for easier deployment and lower profile when in firing position.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources