These guns are fitted with triple-coil muzzle velocity gauge and fuze-setter for use with Advanced Hit Efficiency And Destruction (AHEAD) projectiles. The first two coils are located 3.9 inches (10 cm) apart and measure the exact projectile velocity. This is then used to calculate the fuze setting so as to achieve the proper flight time. The third coil then imparts this data to the fuze via a electro-induction system. The fuze itself is a high-precision timer which detonates the expelling charge at a given distance in front of the target.
Lockheed Martin is the U.S. licensee to Oerlikon Contraves for sale and manufacture of the gun systems. The USN performed evaluation testing of this weapon system in 2005, but has decided not to purchase.
In use by the Danish and Venezuelan navies. On Danish vessels these guns will be controlled by the SaabTech CEROS 200 radar/electro-optical fire control systems and the Terma Command Management System of the CSS. Taiwan is also looking at this weapon and has reportedly designed a support ship that can accommodate it.
The "1000" in the designation is a reference to the rate of fire. The actual gun barrel length is about 79 calibers.
Prototype 35 mm Naval Gun System (GDM-008)
Millennium mounted on Lockheed Martin HSV Sea Slice
|Designation||Gun: Oerlikon 35 mm/1000 KDG
Mounting: Millennium GDM-008
|Ship Class Used On||Royal Danish Navy: Absalom
class Combat Support Ships and Iver Huitfeldt class frigates
Taiwan: Support Ship Panshih
Venezuela: Guaiqueri and Guaicamacuto classes offshore patrol vessels
|Date Of Design||about 1995|
|Date In Service||2003|
|Gun Weight||992 lbs. (450 kg)|
|Gun Length oa||161.8 in (4.110 m)|
|Bore Length||108.9 in (2.766 m)|
|Rate Of Fire||1,000 rounds per minute cyclic|
|Note: Weapon may be set to fire single shots, 200 rounds per minute or 1,000 rounds per minute.|
|Weight of Complete Round||AHEAD: 3.90 lbs. (1.77 kg)
HEI: 3.48 lbs. (1.58 kg)
APDS-T: 3.19 lbs. (1.445 kg)
|Projectile Types and Weights||AHEAD: 1.65 lbs. (0.750 kg)
HEI: 1.21 lbs. (0.55 kg)
APDS-T: 0.84 lbs. (0.38 kg)
|Bursting Charge||AHEAD: N/A (uses 152 sub-projectiles
of 3.3 gms each)
HEI: 0.25 lbs. (0.112 kg)
APDS-T: N/A - solid penetrator weighs 0.666 lbs. (0.302 kg)
Complete Round - AHEAD: 15.23 in (38.7 cm)
Complete Round - HEI: 15.23 in (38.7 cm)
Complete Round - APDS-T: 13.39 in (34.0 cm)
|Propellant Charge||0.73 lbs. (0.33 kg) NC 01 T 35 (single based)|
|Cartridge||35 x 228 mm|
|Muzzle Velocity||AHEAD: 3,445 fps (1,050 mps)
HEI: 3,854 fps (1,175 mps)
APDS-T: 4,724 fps (1,440 mps)
|Working Pressure||24.6 tons / in2 (3,875 kg / cm2)|
|Approximate Barrel Life||N/A|
|Ammunition stowage per gun
(see Note 2)
|200 to 252 ready rounds on mount|
1) Tracer for APDS-T burns for 1.6 seconds, approximately equal to 2,190 yards (2,000 m).
2) The manufacturer claims that having 252 rounds on mount is enough for 10 to 20 aircraft engagements.
3) Millennium mountings generally use only AHEAD ammunition.
|Keep-out Ranges||With 1.65 lbs. (0.75 kg) AHEAD Shell|
|Fighter aircraft/attack helicopters||3,830 yards (3,500 m)|
|Guided missiles/cruise missiles||2,190 yards (2,000 m)|
|Anti-radiation and sea-skimmer missiles||1,640 yards (1,500 m)|
1) Flight time for AHEAD at a muzzle velocity
of 3,445 fps (1,050 mps):
2) Flight time for HEI at a muzzle velocity
of 3,854 fps (1,175 mps):
3) Flight time for APDS-T at a muzzle velocity
of 3,950 fps (1,440 mps):
|1,100 yards (1,000 m)||3.5 in (9 cm)|
|Note: Assumes 90 degree impact.|
|Designation||Naval Mount: Millennium GDM-008|
|Weight||7,055 lbs. (3,200 kg) including 200 rounds
Weight can be between 3.6 and 5.2 tons (3.7 and 5.3 mt) depending upon configuration
|Elevation||-15 / +85 degrees|
|Elevation Rate||70 degrees per second maximum
Acceleration 130 degrees per second2
|Train Rate||120 degrees per second maximum
Acceleration 160 degrees per second2
|Gun recoil||0.79 inch (2.0 cm)|
1) This mounting operates from 24 Vdc.
2) Naval mounts can be swapped out in about 30 minutes.
22 October 2008 - Benchmark
03 June 2010 - Added information about selectable firing rates, links to papers presented at NDIA Joint Armament Conference, miscellaneous additions
02 January 2012 - Corrected typographical error, added miscellaneous information
24 March 2014 - Corrected cartridge size
06 November 2015 - Added use by Taiwan and Venezuela