SM-4-1 Russian 130mm Towed Coastal Defense Gun
SM-4-1
Towed Gun
Other
Basic Information
Name
SM-4-1 Russian 130mm Towed Coastal Defense Gun
Designation
SM-4-1
Alternate Designation
SM-4-1
Equipment Type
Towed Gun
Manufacturer
—
Date of Introduction
1952
Description
The 130-mm SM-4-1 is a mobile coastal defense gun that is in limited use. It is thought to have been derived from a naval gun of a similar caliber and is carried in a very large four-wheeled carriage; each wheel is dual-tired. In the firing position, the axles are removed and four stabilizers -- two to each side -- are staked down. The SM-4-1 was designated the K54 when in Finnish service. The gun fires high-explosive (HE) and armor-piercing HE (APHE) projectiles.
System
Alternative Designation
SM-4-1
Type
Towed Coastal Defense Gun
Crew
INA
Carriage
INA
Displacement Time
INA minutes
Emplacement Time
INA minutes
Dimensions
Length, Traveling
12.80 m
Barrel Length
7.60 m
Width
2.85 m
Height
3.05 m
Ground Clearance
300 mm
Weight, Combat
16,000 kg
Weight, Traveling
19,000 kg
Automotive Requirement
Prime Mover
AT-T heavy tracked artillery tractor
Main Weapon System
System
Name
SM-4-1
Type
Towed Coastal Defense Gun
Caliber
130mm
Bore
130-mm/58-cal, rifled; fitted w/muzzle brake
Elevation
-5 deg to 45 deg (-89 mils to 800 mils)
Traverse
360 deg (6,400 mils)
Maximum Range
29,500 m
Muzzle Velocity
1,050 mps
Rate of Fire
5 rpm, normal
Ammunition
Type
APHE Projectile
Caliber
130 mm
Projectile Weight
33.6 kg
Penetration, APHE
250 mm of steel armor at 1,090 yd (1,000 m) at 0-deg incidence
Type of Ammunition
HE, APHE
Fire Control
Name
INA
Computerized FCS
INA
Direct Fire
Yes
Indirect Fire
Yes
Collimator
INA
Radar System
Radar
ZALP-B Top Bow
Details
Country of Origin
Russia
Category
Towed Gun/Howitzer Artillery Systems
Land > Artillery > Towed Gun/Howitzer Artillery Systems
Filter Label
S
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
—
Width
2.85 m
Height
3.05 m
Weight
16000 kg
Operators (4)
North Korea
Bulgaria
Egypt
Yemen
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