M114A1 American 155mm Towed Howitzer
M114, M114A
155mm Towed Howitzer
Other
Basic Information
Name
M114A1 American 155mm Towed Howitzer
Designation
M114, M114A
Alternate Designation
M114, M114A
Equipment Type
155mm Towed Howitzer
Manufacturer
Rock Island Arsenal (US)
Date of Introduction
1942
Description
The M114 155mm howitzer, which was replaced by the M198, is a towed weapon first produced in 1942 as medium artillery. The weapon uses NATO standard 155mm ammunition, with a range of about 14,000m, and was used during World War II in Korea, and in Viet Nam. Until recently they were in service with the National Guard. It was the U.S. Army and Marine Corps' principal 155-mm howitzer until the introduction o f the M198 in the early 1980s. It was exported to many other countries as well.
Ground Specifications
Crew
11
Mobility Type
Towed
Main Weapon
155mm rifled
Range
14.6 km
Variants
M114A2
This is the standard M114 fitted with the longer barrel of the newer M198.
M114/39
This was an upgrade developed by RDM (De Rotterdamsche Droogdok Maatschappij BV) Defense Engineering in Rotterdam, Netherlands. Longer barrel (39 calibers vs. 23) with increased rifling twist from 1 in 25 calibers to 1 in 20, a three-port muzzle brake, larger-capacity equilibrators, revised recoil system inclu ding new metering and recoil rods, maximum elevation increase to 70-deg (1,245 mils) and a greater barrel-chamber volume. The gun carriage was modified to handle the increased forces. Firing weight is 16,755 lb (7,600 kg); traveling length is 32 ft 10 in (10.0 m).
Modified M114 (Israel)
his version was developed as a private venture by Soltam of Israel.
155-mm M65 Howitzer
This is a South Korean conversion of the M114A1 (see separate database entry).
M114 (Iran)
The variant is an Iranian upgraded M114 with an M114/39 barrel designated the HM41.
System
Alternative Designation
M114, M114A
Type
155mm Towed Howitzer
Family
M114
Manufacturer
Rock Island Arsenal (US)
In Service
1941-Present
Crew
11 ea
Displacement Time
INA
Emplacement Time
INA
Carriage
Split trail
Dimensions
Length, Traveling
7.32 m
Length, Barrel
3.78 m
Width
2.44 m
Height
1.80 m
Ground Clearance
229 mm
Weight, FIring
5,800 kg
Weight, Traveling
5,760 kg
Automotive Requirement
Prime Mover
6x6 or 8x8 truck
Communications
Primary
INA
Howitzer System
Howitzer
Name
M114 155mm Howitzer
Type
155 mm
Length, Barrel
3.78 m
Breech Type
stepped thread, interrupted screw
Loader Type
Manual
Muzzle Brake Type
INA
Bore Type
155-mm/23-cal rifled
Maximum Elevation
+65 deg
Minimum Elevation
-2 deg
Traverse Range
49 deg
Traverse Right
25 deg
Traverse Left
24 deg
Recoil System
hydropneumatic
Maximum Effective Range
14,600 m
Rate of Fire, first 30 seconds
2 rounds, 1st 1/2 min
Rate of Fire, first 4 minutes
8 rounds, 1st 4 min
Rate of Fire, first 10 minutes
16 rounds, 1st 10 min
Sustained Rate of Fire
40 rds/hr
Ammunition (Option 1)
Name
M449
Type
HE-APERS
Caliber
155 mm
Projectile Length
698 mm
Projectile Weight
43.09 kg
Muzzle Velocity
563 m/s
Basic Load
INA
Shell Type
Separate-loading bagged charge
Ammunition (Option 2)
Name
M107
Type
HE
Caliber
155 mm
Projectile Length
607 mm
Projectile Weight
42.91 kg
Muzzle Velocity
5623 m/s
Basic Load
INA
Shell Type
Separate-loading bagged charge
Fire Control
Name
INA
Computerized FCS
No
Direct Fire
Yes
Indirect Fire
Yes
Collimator
INA
Details
Country of Origin
United States
Category
Towed Gun/Howitzer Artillery Systems
Land > Artillery > Towed Gun/Howitzer Artillery Systems
Filter Label
M
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
7.32 m
Width
2.44 m
Height
1.8 m
Weight
5800 kg
Operators (26)
United States
South Korea
Turkey
Iran
North Korea
Pakistan
Brazil
Afghanistan
Argentina
Ecuador
El Salvador
Greece
Jordan
Laos
Lebanon
Morocco
Peru
Philippines
Portugal
Saudi Arabia
Sudan
Thailand
Tunisia
Uruguay
Venezuela
Vietnam
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