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13-inch mortar
Photo: Civil War Glass Negatives · Wikimedia Commons · Public domain
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13-inchmortar

Towed Artillery & Mortars · United States
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13-inchmortar

13-inch mortar
13-inch mortar Photo: Civil War Glass Negatives · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Range
20
Firepower
80
Rate of Fire
30
Accuracy
40
Portability
10
Setup Speed
20
Ammunition Versatility
50
Reliability
60
Crew Economy
30
Cost-Effectiveness
40
Origin United States
CategoryTowed Artillery & Mortars
Operators1 countries
Data Quality81%
MASS(Military Archive Scoring System)
39
Towed Artillery & Mortars MASS Rating
240/302
All-Time
Towed Artillery & Mortars · 10 axes scored
Range
20
Firepower
80
Rate of Fire
30
Accuracy
40
Portability
10
Setup Speed
20
Ammunition Versatility
50
Reliability
60
Crew Economy
30
Cost-Effectiveness
40
ⓘ Regardless of era, the same scoring system applies to all units in the towed artillery & mortars category.
01 / Overview
13-inch mortar
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TOWED ARTILLERY & MORTARS
—
PERFORMANCE/PRICE
50
UNIT COST (2025 USD)
—
39
towed artillery & mortars category
ⓘ Performance/Price and MASS score are computed across all units in the towed artillery & mortars category, regardless of era.
02 / Specs & Design
◎General1MOD.1
  • Combat Weight15,000 kg
◈Ordnance2MOD.2
▣Performance1MOD.1
  • Maximum Range (standard)4 km
◇Ammunition2MOD.2
◆Mobility1MOD.1
03 / History
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE2terms
High Explosive (HE) round: an artillery or mortar projectile containing explosive filler designed to inflict damage through blast and fragmentation effects.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Towed Artillery & Mortars entry →