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Ordnance ML 4.2 inch Mortar
Photo: Bukvoed · Wikimedia Commons · CC BY 3.0
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OrdnanceML4.2inchMortar

Towed Artillery & Mortars · United Kingdom · 1942
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OrdnanceML4.2inchMortar

Ordnance ML 4.2 inch Mortar
Ordnance ML 4.2 inch Mortar Photo: Bukvoed · Wikimedia Commons · CC BY 3.0
* Absolute score — assessed within category · no era adjustment
Range
30
Firepower
40
Rate of Fire
50
Accuracy
45
Portability
60
Setup Speed
70
Ammunition Versatility
55
Reliability
85
Crew Economy
65
Cost-Effectiveness
80
Origin United Kingdom
CategoryTowed Artillery & Mortars
EraWorld War II
In service1942
Operators12 countries
Quantity3,800
Data Quality88%
MASS(Military Archive Scoring System)
52
Towed Artillery & Mortars MASS Rating
12/48
World War II
103/302
All-Time
Towed Artillery & Mortars · 10 axes scored
Range
30
Firepower
40
Rate of Fire
50
Accuracy
45
Portability
60
Setup Speed
70
Ammunition Versatility
55
Reliability
85
Crew Economy
65
Cost-Effectiveness
80
ⓘ Regardless of era, the same scoring system applies to all units in the towed artillery & mortars category.
01 / Overview
Ordnance ML 4.2 inch Mortar
Production
1942–
Quantity
3,800
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TOWED ARTILLERY & MORTARS · WORLD WAR II
12
PERFORMANCE/PRICE
85
UNIT COST (2025 USD)
—
52
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
◎General6MOD.6
  • Service Entry Year1942
  • Combat Weight41.731 kg
  • Travel Weight273 kg
  • Crew6
  • Carriage TypePole Trail
  • In ServiceYes
◈Ordnance6MOD.6
▣Performance6MOD.6
  • Maximum Range (standard)3.7 km
  • Muzzle Velocity223 m/s
  • Rate of Fire (burst)20
  • Rate of Fire (sustained)10
  • Elevation45°–80°
  • Traverse10°
◇Ammunition9MOD.9
▤Mobility5MOD.5
⬢Ammunition Handling1MOD.1
  • Resupply Vehicle10 cwt trailer
▲Dimensions1MOD.1
  • Length1.73 m
◎Production2MOD.2
  • Total Production3,800
  • Production Start1,941 year
◈Self-Propelled Chassis1MOD.1
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1942Production started
84
years in service
3,800
units produced
12
countries operating
ⓘ The producing country still actively operates it.
04 / Conflicts
ORDNANCE ML 4.2 INCH MORTAR · CONFLICTS SERVED IN0% win
Total Conflicts
1
Victories
0
Ongoing
0
Losses
0
ⓘ Shown only from conflicts recorded in our database.
05 / Operators
📖 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 towed artillery carriage configuration where the gun is pulled directly behind the prime mover without a limber, relying on a single pole for connection.
Smoke grenades are pyrotechnic devices deployed by infantry fighting vehicles to create a visual screen, obscuring movement or positions from enemy observation or targeting.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Towed Artillery & Mortars entry →