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Rheinmetall Oerlikon Millennium Gun

Topic: Engineering

 From HandWiki - Reading time: 6 min

Short description: Type of defensive weapon system
Rheinmetall Millennium Gun
Oerlikon Millennium 35mm Naval Revolver Gun System aboard the HDMS Absalon (F341)
TypeCIWS
Place of originSwitzerland[1]
Service history
In service2003–present
Used byDanish Navy
Venezuelan Navy
Indonesian Navy
Production history
Designed1995
ManufacturerRheinmetall Air Defence, Oerlikon Contraves
Specifications
MassGun: 450 kg
Installation: 3300 kg
Length5.5 m
Width2.39 m
Height1.94 m
Crewunmanned
Shell35×228mm
Calibre35 mm
BarrelsSingular
ActionGas-operated four-chamber revolver cannon[2]
Elevation-15 / +85 degrees
rate: 70 degree/s
Traverse360 degrees
rate: 120 degrees per second
Rate of fireSingle shot
Rapid Single Shot: 200 rounds per minute
Burst (automatic fire): 1000 rounds per minute
Muzzle velocityAHEAD: 1,050 m/s (3,400 ft/s)
HEI: 1,175 m/s (3,850 ft/s)
APDS/T: 1,440 m/s (4,700 ft/s)
Effective firing range3,500–5,000 m (3,800–5,500 yd)[3]
Feed system252 linkless rounds in installation

The Rheinmetall Oerlikon Millennium Gun or Rheinmetall GDM-008 is a close-in weapon system designed by Rheinmetall Air Defence AG (formerly known as Oerlikon Contraves) for mounting on ships. It is based on the 35/1000 revolver gun land-based air defense system and uses Advanced Hit Efficiency And Destruction (AHEAD) ammunition.

Description

A device at the muzzle end of the barrel measures the exact speed of each round as it is fired, and automatically sets the fuse to detonate the round as it approaches a pre-set distance from the target. Each round disperses 152 small tungsten projectiles[4][5] weighing 3.3 grams (0.12 oz) each to form a lethal cone-shaped cloud to strike the incoming target.[3] Whilst these are too small to do major damage in themselves, the accumulation of damage from multiple strikes is expected to destroy wings and control surfaces, sensors and aerodynamics, causing the target to crash. Other firing modes are designed to be effective against surface targets such as small fast attack boats.

The weapon is designed to be controlled by an external fire-control system using either radar or electro-optical trackers. It is fitted with an optional onboard observation TV camera which relays imagery to an operator console from which it can also be aimed and fired in an emergency mode. The computer system uses an open architecture and is claimed to be compatible with many existing fire control systems.

The gun's ammunition capacity allows it to engage 10 anti-ship missiles or 20 surface targets.[3]

Operators

Current operators

 Denmark
7 used by the Royal Danish Navy.
  • Script error: The function "sclass" does not exist., 2 ships with 2 Millennium Gun each[6][7]
  • Script error: The function "sclass" does not exist., 3 ships with 1 Millennium Gun each[8][9]
 Indonesia
2 used by the Indonesian Navy, 2 ordered for new ships.
  • Script error: The function "sclass" does not exist. (SIGMA10514-class), 2 ships with 1 Millennium Gun each[10][11]
  • Merah Putih-class frigate (Arrowhead 140-class), 2 ships in construction, 1 Millennium Gun each[12]
 Venezuela
8 guns purchased, 6 remain in service with the Venezuelan Navy.
  • Script error: The function "sclass" does not exist. (Avante 2200-class), 3 ships in service, 1 removed from service, 1 Millennium Gun each[13]
  • Script error: The function "sclass" does not exist. (Avante 1400-class), 3 ships in service, 1 lost, 1 Millennium Gun each[14]

Future operators

 Bulgaria
2 to enter service with the Bulgarian Navy:
  • 2 MMPV 90 corvettes in construction, 1 Millennium Gun each[15]
 Saudi Arabia
5 to enter service with the Royal Saudi Navy:
  • Script error: The function "sclass" does not exist. (Avante 2200-class), 5 ships to enter service service, 1 Millennium Gun each[16]

Retired

 United States
Experimental ship from Lockheed Martin and the Office of Naval Research.[17]
  • 1 Sea Slice experimental ship, 1 Millennium Gun[18]

See also

References

  1. ↑ "35mm Millenium - Oerlikon GDM-008". weaponsystems.net. https://weaponsystems.net/system/1588-35mm+Millenium. 
  2. ↑ The Naval Institute Guide to World Naval Weapons Systems, 1997-1998 - Norman Friedman
  3. ↑ 3.0 3.1 3.2 CIWS: The Last Ditch Defense
  4. ↑ The 35mm Rheinmetall Oerlikon Millennium Gun 27 May 2015
  5. ↑ "Rheinmetall Defence". http://www.rheinmetall-defence.com/index.php?fid=5122&qid=&qpage=0&lang=3&query=millennium%20gun. 
  6. ↑ "Absalon class - archived report". https://www.forecastinternational.com/archive/disp_pdf.cfm?DACH_RECNO=1266. 
  7. ↑ "Denmark’s Absalon-class Flexible Frigates" (in en). 2021-11-01. https://www.usni.org/magazines/proceedings/2021/november/denmarks-absalon-class-flexible-frigates. 
  8. ↑ "SHIPS AND PLATFORMS" (in en). https://navalteam.dk/ships-and-platforms/. 
  9. ↑ "Iver Huitfeldt class Guided Missile Frigate Royal Danish Navy". https://www.seaforces.org/marint/Danish-Navy/Frigate/Iver-Huitfeldt-class.htm. 
  10. ↑ "Indonesia’s SIGMA Solution: 10514 Multipurpose Frigates" (in en). 2023-02-01. https://www.usni.org/magazines/proceedings/2023/february/indonesias-sigma-solution-10514-multipurpose-frigates. 
  11. ↑ "SIGMA 10514 Guided Missile Frigate, PKR - Perusak Kawal Rudal". https://www.globalsecurity.org/military/world/indonesia/kri-pkr-sigma.htm. 
  12. ↑ Mitsopoulos, Dimitris (2025-02-11). "Indonesia’s Merah Putih-class Frigate: What You Need to Know" (in en-US). https://www.navalnews.com/naval-news/2025/02/indonesias-merah-putih-class-frigate-what-you-need-to-know/. 
  13. ↑ D-Mitch. "Guaiqueri class offshore patrol boats of the Venezuelan Navy". https://www.navalanalyses.com/2014/10/guaiqueri-class-offshore-patrol-boats.html. 
  14. ↑ "BVL / Guaicamacuto Class Offshore Patrol Vessels" (in en-US). https://www.naval-technology.com/projects/bvl-guaicamacuto-class-offshore-patrol-vessels/. 
  15. ↑ Mitsopoulos, Dimitris (2023-08-09). "Bulgaria's First Modern Corvette Launched by Local Shipyard" (in en-US). https://www.navalnews.com/naval-news/2023/08/bulgarias-first-modern-corvette-launched-by-local-shipyard/. 
  16. ↑ Valpolini, Paolo (2022-03-14). "Navantia: Al Jubail first-of class corvette to be commissioned in late March in the RSNF" (in en-GB). https://www.edrmagazine.eu/navantia-al-jubail-first-of-class-corvette-to-be-commissioned-in-late-march-in-the-rsnf. 
  17. ↑ "MDG-351 Millennium Gun". https://www.globalsecurity.org/military/systems/ship/systems/mg.htm. 
  18. ↑ "Sea SLICE". https://www.globalsecurity.org/military/systems/ship/sea-slice.htm. 




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