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20mm Wegmann



Overview


Wegmann MK 20

Double feed Rh-202 autocannon in use on a Wegmann naval mount.
Source: www.en.valka.cz - © copyright lies with original owner

Origin
Germany
Type
Naval gun
Entered service
1977
Status
In service
Development
Mid 1970's
Developer
Germany - Wegmann
Production
Mid 1970's - ?
Producer
Germany - Wegmann
Gun mount
Germany - Rheinmetall
Rh-202 autocannon
Number produced
Produced in limited numbers
Notable users
Germany
Ireland

Description


Introduction

The Wegmann naval gun mount is a Cold War era self-defense weapon of German origin. It is a somewhat heavier alternative to the Rheinmetall S-20 gun mount. Both mounts are fitted with the same autocannon, but the Wegmann mount uses a twin belt feed mechanism.

Design

The Wegmann naval gun mount is a pedestal mount with a single 20mm Rh-202 Type 2 autocannon. This is the double feed model and a belt box is located on either side of the gun. An adjustable shoulder mount helps the gunner to rotate and elevate the gun. A sight with lead indication helps in targeting aerial targets. A gun shield provides a degree of protection from small arms fire.

Firepower

The Rh-202 autocannon fires the 20x139mm NATO round at cyclic rate of fire of about 1.000 rpm. This double feed weapon has two 100 round belts ready to fire. Each belt can contain a different type of ammunition, such as HEI-T and APDS. The operator can quickly switch between belt type. Effective range is 2 km against surface targets and 1.5 km against aerial targets. The sea state, visibility, target size and movement have a strong influence on practical range and hit rate.

Users

The Wegmann gun mount was mainly intended as a self-defense naval mount for smaller vessels, such as landing craft and patrol boats. It was adopted by West Germany in 1977 and has been exported to several nations. In German service this has been replaced by the more capable and unmanned MLG-27.

Details


Facts 20mm Wegmann
General
Origin
Germany
Type
Naval self-defense gun mount
Ordnance
Type
20mm Rheinmetall Rh-202 dual feed autocannon
Ammunition type
20x139mm NATO
Rate of fire
880 - 1.020 rpm cyclic
Range
2 km against surface targets
1.5 km against aerial targets
Muzzle velocity
1.050 m/s for HEI
1.250 m/s for APDS
Mount
Feed mechanism
Double belt
Ammunition
2x 100 round belt on mount
Traverse
360°, manual
Elevation
-15° to +85°, manual
Operation
Crew
1 on mount, plus assistance off mount
Fire control
Manual control using gun sight
Dimensions
Weight
628 kg loaded
Length
3.02 m
Width
1.67 m
Height
1.8 m
Deck penetration
No

Media


Related articles


20mm Rheinmetall Rh-202

The Wegmann naval mount is fitted with a single 20mm Rheinmetall Rh-202 autocannon.

20mm Rheinmetall S-20

The Wegmann mount was introduced only two years of the Rheinmetall S-20, which is a lighter mount with a single feed variant of the Rh-202 autocannon.

27mm MLG 27

In German service many Wegmann naval mounts have been replaced by the MLG-27, which is remote controlled and fires a larger projectile at a higher rate of fire.

20mm Oerlikon GAM-BO1

The Oerlikon GAM-B01 naval mount is rather similar to the Wegmann MK 20, being a a pedestal mounted 20mm autocannon with a single operator.