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240mm M240



Overview


240mm M240

Side view of 240mm M240 mortar on display in a museum in travel configuration. Note the muzzle cap with tow eye.
Source: www.oruzhie.info - © Copyright lies with original owner

Origin
Soviet Union
Type
Heavy mortar
Entered service
Early 1950's
Status
Limited service
Development
1944 - 1945 (first phase)
1947 - 1949 (second phase)
1950 (Soviet state testing)
Developer
Soviet Union - KBM Kolomna
B.I. Shavyrin
Production
1951 - 1958
Producer
Soviet Union - No. 75 Yurga machine-building plant
Number produced
329 M240
Designations
240-мм миномёт М-240 образца 1950 года
Russian for "240mm mortar M240 of the 1950 pattern"
52-M-864 (GRAU index)
2B8 (modified version for use on 2S4 Tyulpan)
Notable users
Soviet Union
Syria

Details


Facts M240
General
Origin
Soviet Union
Type
Heavy mortar
Crew
9 to 11
Dimensions - Travel configuration
Weight
4.23 t
Length
6.15 m
6.35 m with tow eye attached
Width
2.43 m
Height
2.21 m
Dimensions - Firing configuration
Weight
3.61 t
Ordnance
Type
240mm breech-loading smoothbore mortar
Ammunition
240mm Soviet mortar shells
Barrel length
5.34 m
Muzzle velocity
158 to 362 m/s
Elevation
+45° to +80°
Traverse
16.5° total at +45° elevation
78° total at +80° elevation
Recoil force
Up to 4.300 kN
Fire control
Sights
MP-46 or MP-46M panoramic sight (early production)
K-1 collimator sight from 1955 onward
Firepower
Rate of fire
1 rpm
Range
9.65 km maximum for F-864 shell
0.8 km minimum for F-864 shell
19.7 km maximum for 3F2 rocket assisted shell
Carriage
Type
Two wheel carriage
Muzzle cap with tow hook
Tread
2.06 m
Ground clearance
0.35 m
Emplacement
25 minutes
Displacement
15 minutes
Mobility
Towing vehicle
AT-S, AT-L, AT-T, MT-LB, Ural-375D
Towed speed
40 km/h on road
Autonomous mobility
Too heavy for manhandling

Media


List of prime movers


AT-S

The AT-S was the first type of prime mover issued with the M240 heavy mortar.

MT-LB

During the Soviet war in Afghanistan the MT-LB was the predominant prime mover for the M240.

Ural 375D

The Ural 375D 6x6 is well suited for transporting the M240 over longer distanced on paved road, but less suitable in the field.

Related articles


2S4 Tyulpan

The 2S4 Tyulpan is a self-propelled mortar using a similar 240mm breech loaded mortar.

160mm M160

The M240 is an upscaled version of the M160 breech-loading mortar.

The M240 can be identified by its large baseplate and platform for the recoil assembly.