2S4 Tyulpan (M-1975) Russian 240mm Self-Propelled Heavy Mortar
2S4 Tyulpan
Self-Propelled Mortar (SPM)
Other
Basic Information
Name
2S4 Tyulpan (M-1975) Russian 240mm Self-Propelled Heavy Mortar
Designation
2S4 Tyulpan
Alternate Designation
2S4 Tyulpan; NATO: M-1975
Equipment Type
Self-Propelled Mortar (SPM)
Manufacturer
Uraltransmash
Date of Introduction
1972
Description
2S4 Tyulpan (M-1975) 240mm Self-Propelled Heavy Mortar is the largest mortar system in use today. The 2S4 Tyulpan design is based on the GM-123 chassis carrying an externally mounted M-240 240 mm breech-loading mortar on the rear of the hull. The 2S4 uses an autoloader of the sort. It has two automated drum-type magazines, capable of holding up to 40 standard high-explosive rounds or 20 long-range rocket-assisted rounds. The rounds are fed to the top of the carrier, where they are placed on a track. The mortar then tilts to the horizontal position. The breech opens and a ramming device pushes the round into the breach. The breach closes and the mortar tilts into the firing position.
Ground Specifications
Crew
4
Mobility Type
Tracked
Main Weapon
240 mm breech-loading mortar
Engine
V-12 Diesel (520 hp)
Active Protection
None
NBC Protection
Yes
Max Speed
60.0 km/h
Range
500.0 km
System
Alternative Designation
2S4 Tyulpan; NATO: M-1975
Type
Self-Propelled Heavy Mortar System
Caliber
240 mm
Manufacturer
Uraltransmash
Chassis
The 2S4 Tyulpan designs is based on the GM-123 chassis carrying an externally mounted M-240 240 mm breech-loading mortar on the rear of the hull.
Crew
4 ea
Emplacement Time
25 minutes
Displacement Time
25 minutes
Dimensions
Length
7.94 m
Width
3.25 m
Height
3.225 m
Weight, Combat
27,500 kg
Ground Pressure
0.6kg/cm² (58840Pa) (8.53psi)
Ground Clearance
0.40 m
Automotive
Engine Name
V-59
Engine Type
V-12, diesel
Engine Power
520 hp
Power-to-Weight Ratio
18.90 hp/t
Fuel Capacity
850 liters
Maximum Speed
60 km/h
Range
500 km
Gradient
60%
Side Slope
30%
Vertical Obstacle
1.10 m
Trench
2.79 m
Main Weapon System
Turret
Powered/Manual
System
Name
1 × hull mounted 240mm 2B8 mortar
Type
Heavy Mortar
Caliber
240 mm
Barrel Length
INA
Barrel Weight
INA
Elevation
+ 50 to + 80 degrees
Traverse
20 - 82 degrees
Rate of Fire
1 rpm
Maximum Firing Range, HE Round
9.6 km
Maximum Firing Range, Rocket Assisted
18 km
Ammunition (Option 1)
Type
HE Fragmentation Bomb
Caliber
240 mm
Projectile Weight
130 kg
Maximum Firing Range
9,650 m
Minimum Firing Range
INA
Basic Load
The shells are stored in two automated drum-type storage areas. A total of 40 ordinary or 20 rocket-assisted shells are carried. It can also use ground ammunition.
Ammunition (Option 2)
Name
INA
Type
HE Rocket Assisted
Caliber
240 mm
Projectile Weight
228 kg
Maximum Firing Range
18,000 m
Minimum Firing Range
800 m
Basic Load
The shells are stored in two automated drum-type storage areas. A total of 40 ordinary or 20 rocket-assisted shells are carried. It can also use ground ammunition.
Coaxial Weapon System
System
Name
1 × 7.62mm PKT machine gun
Type
General-Purpose Machine Gun (Roof Mounted)
Caliber
7.62 mm
Length
1,098 mm
Barrel Length
772 mm
Weight
7.7 kg
Action
Gas-operated, open bolt
Rate of Fire
700–800 rounds/min
Muzzle Velocity
825 m/s
Maximum Firing Range
4,000 m
Effective Firing Range
1,500 m
Feed System
Non-disintegrating metal 50 round belts in 100 and 200/250 round ammunition boxes
Sights
Iron Sights
Ammunition
Type
Rifle
Caliber
7.62 mm
Cartridge
7.62×54mmR
Basic Load
1,500 Rounds
Fire Control System
Name
INA
Computerized FCS
INA
Main Gun Stabilization
Yes
Laser Designator
1D15 laser target indicator/laser range-finder
Protection
Hull Armor
The armoured hull provides protection from small arms fire and shell fragments.
Applique Armor
No
Explosive Reactive Armor
No
Active Protection System
No
Mine Clearing
No
Self-Entrenching Blade
No
NBC Protection
Yes
Smoke Equipment
INA
Details
Country of Origin
Russia
Category
Self-Propelled Mortar System
Land > Infantry Vehicles > Self-Propelled Mortar System
Filter Label
2
Classification
Domain
Ground
Equipment Status
Active
Dimensions
Length
7.94 m
Width
3.25 m
Height
3.23 m
Weight
27500 kg
Operators (4)
Russia
Ukraine
Syria
CFE Treaty
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