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2S4 Tyulpan



Overview


2S4 Tyulpan

Several 2S4 Tyulpan large caliber self-propelled mortars on the move.

Source: Unknown author - © Copyright lies with original owner

Origin
Soviet Union
Type
Self-propelled mortar
Entered service
1972
Status
Limited service
Development
1966 - 1971
Design project
1972
Passed state trials
Developer
Soviet Union - SKB-172 design bureau of the Motovilikha Plant
Production
1969 (3 prototypes)
1972 - 1988 (series production)
Producer
Soviet Union - Uraltransmash
Unit cost
210.000 Rubles in 1972
Number produced
588
Designations
2S4 (GRAU index)
SM-240 (Russian service designation)
Tyulpan (official nickname)
Russian for "tulip"
M1975 (NATO reporting name)
Obyekt 305 (GABTU index)

Details


Facts 2S4 Tyulpan
General
Origin
Soviet Union
Type
Self-propelled mortar
Crew
5
Dimensions
Weight
30 t
Length
7.94 m in travel configuration
Width
3.2 m
Height
3.25 m in travel configuration
Main armament
Type
240mm 2B8 L/20.8 breech loaded mortar
Ammunition
20 standard shells or 10 rocket assisted projectiles
Rate of fire
1 rpm
Elevation
+50 to +80 degrees
Traverse
-10 to + 10 degrees at minimum elevation
-41 to +41 degrees at maximum elevation
Range
0.8 km to 9.5 m for standard shell types
7 km to 19.7 km for rocket-assisted shell types
Secondary armament
Type
7.62mm PKT machine gun
Mount
Remote mount on commander's cupola
Ammunition
1.500 rounds
Elevation
-6 to +15 degrees
Traverse
164 degrees left and 23 degrees right
Automotive
Chassis
Tracked chassis, 6 roadwheels, drive sprocket front and idler rear
Ground pressue
0.61 kg/cm^2
Suspension
Torsion bar
Engine
V-59U V12 four stroke supercharged diesel
Power output
520 hp
Transmission
Mechanical, 6 forward, 2 reverse
Fuel
830 L
Mobility
Max speed
63 km/h on road
25 - 30 km/h in the field
Range
500 km on road
Ground clearance
0.45 m
Wall
0.7 m
Trench
2.55 m
Fording
1.0 m
Protection
Armor type
Steel
Armor thickness
7 - 20 mm
NBC system
Yes, for crew within vehicle
Crew exposed when operating main armament

Related articles


240mm M240

The 2S4 Tyulpan uses the 2B8 mortar, which is derived from the towed M240.

Compared to the M240 the 2S4 has increased mobility and better rate of fire.