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10.5 cm Leichtgeschütz 40


10.5 cm Leichtgeschütz 40

Other Pictures:
10.5 cm Leichtgeschütz 40 in action

The 10.5 cm Leichgeschütz 40
also called the LG 40, was a German recoilless gun used during World War II. It was manufactured by Krupp.

History
After the success of Rheinmetall`s 7.5 cm LG 40 during the Battle of Crete in 1941, the Germans were spurred to continue development of recoilless guns in larger calibres. Both Krupp and competitor Rheinmetall developed guns in 10.5 cm, but the LG 40 got into service first.

Design issues
Krupp`s LG 40 was basically an enlarged and improved version of their unsuccessful competitor to Rheinmetall`s 75 mm recoilless gun. It retained the earlier model`s side-swinging breech and large pneumatic tires. It incorporated torque vanes in the jet nozzle to counteract the torque forces imparted by the round engaging the rifling and any clogged or eroded nozzles. It also used the improved priming mechanism developed after the problems with the smaller weapon became apparent. Like all the German 10.5 cm recoilless rifles it shared shells with the 10.5 cm leFH 18 (light Field Howitzer). The LG 40-1 version was built using an aluminium/magnesium alloy mounting, but the LG 40-2 replaced it with ordinary steel as light alloys became too valuable later in the war. Both versions could be broken down into 5 loads for parachute operations or they could be air-dropped fully assembled in a special shock-absorbing crate.

Operational use
Both 105 mm recoilless guns, unlike the 75 mm LG 40, equipped independent artillery batteries and battalions. These include Batteries 423–426, 429, 433, and 443, most of which were later incorporated into Leichtgeschütze-Abt. (Light Gun Battalion) 423 and 424. These units served in both the Arctic under 20th Mountain Army and in central Russia under Heeresgruppe Mitte (Army Group Center).

Used by
- Nazi Germany

Wars
- World War II

Weapontype:
Recoilless gun

Manufacturer:
Krupp

Operation:
side opening Breech

Cartridge:
105×155 mm. R

Chambers:
105 mm (4.13 in)

Weight:
388 kg (855 lbs)

Length:
1.902 m (6 ft 3 in)

Barrel:
1.38 m (4 ft 6 in)

Magazine Capacity:
Nil - 1 shoot only

Feed system:
Manually breech loaded

In service dates:
1942–45

In Production:
1942–44

Effective range:
7,950 m (8,695 yds)

Muzzle Velocity:
335 m/s (1,099 ft/s)

 

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