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Fridtjof Nansen class



Overview


Fridtjof Nansen class

Lead ship of the Fridtjof Nansen class seen in the port of Oslo in 2006.
Source: Zorrolll - © GNU Attribution Share Alike license

Origin
Norway
Type
Frigate
Entered service
2006
Status
In service
Development
Late 1990's
Developer
Spain
Norway
Production
2003 - 2011
Producer
Spain - Navantia yard, Ferrol
Unit cost
USD 477 million in 2003
USD 640 million in 2010
Number produced
5 built, 1 lost
Designations
F310 (lead pennant number)
Notable users
Norway

Description


Introduction

The Fridtjof Nansen class is a Norwegian class of frigates built in Spain. They are modern multipurpose frigates with a balanced set of armament and high quality sensors and systems. All five ships are named after Norwegian explorers. A single ship was lost in a night time collision with a tanker in 2018.

Design

The design of the Fridtjof Nansen class is based on the Spanish Alvaro de Bazan class. It is a conventional modern frigate with a reduced radar signature design. The main gun and VLS are mounted at the front. The forward superstructure houses the bridge and SPY-1 radar system. The engines and funnel are mounted in the middle and the hanger and helicopter deck are at the rear.

Firepower

Against surface targets the 8 NSM missiles or single 76mm OTO Melara Super Rapid main gun can be used. Protection against aircraft is provided by an 8-cell Mk 41 VLS with 32 Evolved Sea Sparrow missiles. A 40mm anti-aircraft gun / CIWS can be installed, but is not fitted. Submarines can be engaged by two twin Stingray lightweight torpedo launchers. Four M2HB heavy machine guns are installed for self-defense. A single NH-90 NFH helicopter is carried for utility and anti-submarine warfare duties.

Sensors

The EAGIS combat data system is the main system on the Fridtjof Nansen class and is connected to a SPY-1F radar and various other sensors. A Link 11 and Link 16 system is fitted for information exchange. The sonar system is a combined active/passive array consisting of MRS 2000 hull mounted sonar and Mk 2 CAPTAS towed array.

Mobility

The main machinery is a CODAG system consisting of two Bravo diesel engines and a single LM 2500 gas turbine. These power two shafts with controllable pitch propellers. This setup is capable of a maximum speed of 26 knots and a 4.500 nm range at 16 knots. A retractable bow thruster improves maneuverability.

Users

The Fridtjof Nansen class is only used by Norway, which took delivery of 5 vessels. They replaced the older Oslo class and make up the entire Norwegian frigate force. Four of these remain in service, with one vessel scrapped due to a collision.

Media


Details


Facts Fridtjof Nansen class
General
Origin
Norway
Type
Frigate
Complement
123, plus 23 spare berths
Dimensions
Displacement
5.200 t full load
Length
133.2 m
Beam
16.8 m
Draft
4.6 - 4.9 m hull
7.6 m maximum
Propulsion
Arrangement
CODAG
Machinery
2x Bravo 12B diesel
1x LM 2500 gas turbine
MAAG gearbox
Power output
12.240 hp combined + 26.112 hp
Propulsion
2 shafts, controllable pitch propellers
Brunvoll 1MW bow thruster
Generators
4x MTU 396, 1250 KVA
Mobility
Speed
26 - 27 knots
Range
4.500 nm at 16 knots
Sensors
Air search radar
AN/SPY-1F
Air and surface search
RSR 210N
Fire control radar
2x Mark 82
Optronic director
Sagem Vigy 20
Navigation radar
Litton
Sonar
Spherion MRS 2000, hull mounted
Sonar
CAPTAS Mk 2 V1, towed array
Systems
Combat data management
AEGIS modules supplemented by Kongsberg MSI 2005F
Communications
Link 11, Link 16
ESM
Condor CS-3701
Decoys
Terma DL-12T SKWS chaff and flare
Decoys
Loki acoustic torpedo decoy
Guns
Dual purpose
1x 76mm Super Rapid
Self-defense
4x 12.7mm M2HB
Self-defense
2x LRAD
SSM
Anti-ship
2x4 NSM
SAM
Launcher
1x8 Mk 41 VLS
Short range
RIM-162B ESSM, quad pack for up to 32 missiles
ASW
Torpedo tubes
2x2 324mm
Torpedo type
Stingray mod 1
Depth charges
Optional
Aircraft
Facilities
Platform and hanger for 1 medium helicopter
Supported types
NH90 NFH

Subcomponents


76mm Super Rapid

1x 76mm Super Rapid in low RCS housing.

12.7mm M2HB

4x 12.7mm M2HB on pintle mount.

NSM

2x4 NSM subsonic anti-ship missile.

RIM-162 ESSM

32x RIM-162B ESSM in single 8-cell Mk 41 VLS.

Sting Ray

2x2 324mm torpedo tube for Sting Ray mod 1.