Galdhøpiggen Class

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Galdhøpiggen Class Destroyer
Galdhøpiggen05.jpg
Galdhøpiggen Class Destroyer
Career Flag of Kalmar Union.png
Nationality: Skandinavia
Operated by: Kongelige Sjøforsvaret
Builder: Ingalls Shipbuilding
Refurbished by Aker Yards
Ordered: First of class: January 1994
Commissioned: First of class Mk2: January 2002
Status: In Service
General characteristics
Displacement: 8,440 tons
Length: 172 m
Beam: 16.8 m
Draft: 8.8 m
Power: Mk2
104 MW
Propulsion: Mk2
NAtech-GE COFCAG (multi-gas turbine and fuel cell propulsion system) with two pods
Speed: Mk2
33 knots
Maximum speed: Mk2
39 knots
Range: Mk2
8,800 nautical miles at 33 knots
Complement: 244 (48 officers)
Armament: Sensors Mk2
1 x Saab 9LV CMS Combat Management System
1 x Saab 9LV FCS Fire Control System
2 x Saab EOS 500 Electro Optical Fire Control
2 x TERMA SCANTER 4100 Surveillance Radar
1 x Kongsberg C-Scope Sonar System
Electronic warfare Mk2
1 x Saab SME-200 Tactical EMS / ELINT
1 x Saab NLWS Naval Laser Warning System
Decoys
1 x TERMA DL-12T decoy launcher
1 x TERMA Loki torpedo countermeasure
Armament Mk2
1 × 32-cell Mk41 Vertical Launching System w/ 72 × RIM-162 ESSM
16 × Naval Strike Missile SSMs
4 × torpedo tubes for Torpedo 2000
Depth charges
1 × 57 mm BOFORS Mk.3
4 x 30 mm Kongsberg Sea Protector CIWS
2 x Long Range Acoustic Device
Aircraft carried: 1 x AS532 SC Cougar ASUW / ASW
1 UAV

The Galdhøpiggen Class destroyer is the only destroyer class in service within the Kongelige Sjøforsvaret. The ships are named after highest norwegian peaks, with the lead ship of the class bearing the name of Galdhøpiggen, the highest one. The ships were Spruance Class Destroyers bough in 1994 from United Commonwealth.

Background[edit]

At the beginning of the 90s the government of Skandinavia began to negotiate with the government of the United Commonwealth the possibility of acquiring 8 of its Spruance Class Destroyers. After several years of negotiations the agreement was closed in 1994 and the vessels were transferred between 1995 and 1996 as Galdhøpiggen Class. Between 2000 and 2004, all vessels underwent a renovation process up to the current Mk2 standard. Its operational life is expected to extend to 2024 or beyond if necessary.

Design Mk2[edit]

The Spruance design was modular in nature, allowing for easy installation of entire subsystems within the ship. Although originally designed for anti-submarine warfare, once acquired by Kongelige Sjøforsvaret they should be used as multirole vessels. That's why FLOSK immediately began working on a series of upgrades (Mk2) that ended up in 2004 with changes in the following parts:

  • A brand new power system with NAtech-General Electric Hybrid Multi-Gas Power Plant
  • A new total power of 124 MW
  • A brand new fully electrical propulsion system with 2 ASEA AZIPODs azimut thrusters mounted externally to the main hull
  • Changes in all electronic systems to fully compatibility with new national standards
  • A new weapon system in accordance with new operational requirements, specially:

Power generation & propulsion Mk2[edit]

The power plant of the ship has been completely redesigned to suit the needs and requirements of the Sjøforsvaret and the new systems and elements of the ship. FLOSK chose to equip the ship with a mixed multi-gas turbine and fuel cell propulsion system (COFCAG) using the existing General Electric LM2500 gas turbine and adding a suit of NAtech fuel cells able to use natural gas. At low speed and during maneuvers the system uses the power delivered by the fuel cells, using the gas turbine system to achieve higher speeds. In addition, the system reuses the exhaust gases to supercharge the turbine and for the ship's heating systems, which considerably reduces the ship's thermal footprint. Power plant of the ship was designed taking into account the current needs of energy for propulsion and other systems on board, so it was possible to assume an increase in power required if new equipment or systems were installed in the future.

The propulsion system is fully electrical with four AZIPOD s (ASEA azimut thrusters) mounted externally to the main hull. The electricity for the motors is supplied by the power system.

Electronic systems Mk2[edit]

One of the main design premises was the need to mount Skandinavian made electronic systems in order to full integration with other Forsvaret systems and satellite net.

Sensors

  • 1 x Saab 9LV CMS Combat Management System
  • 1 x Saab 9LV FCS Fire Control System
  • 1 x Saab EOS 500 Electro Optical Fire Control
  • 1 x TERMA SCANTER 4100 Surveillance Radar
  • 1 x Kongsberg C-Scope Sonar System

Electronic warfare

  • 1 x Saab SME-200 Tactical EMS / ELINT
  • 1 x Saab NLWS Naval Laser Warning System

Decoys

  • 1 x TERMA DL-12T decoy launcher
  • 1 x TERMA Loki torpedo countermeasure

Armament Mk2[edit]

The weapons system of the class are:

Air wing[edit]

The ships have a fligh deck for:

List of ships[edit]

The ships are named after highest peaks in Norway.

# Name Ordered Launched Commissioned
D-101 KSS Galdhøpiggen June 1994 January 1995 January 1995
D-102 KSS Glittertind June 1994 January 1995 January 1995
D-103 KSS Store Skagastølstinden June 1994 September 1995 September 1995
D-104 KSS Sentraltind June 1994 September 1995 September 1995
D-105 KSS Skarstind June 1994 January 1996 January 1996
D-106 KSS Surtningssue June 1994 January 1996 January 1996
D-107 KSS Store Memurutinden June 1994 September 1996 September 1996
D-108 KSS Jervvasstind June 1994 September 1996 September 1996
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