G-class frigate

Basic information

Type:

Frigate

Parent class:

Oliver Hazard Perry-class frigate

Operators:

Turkish Naval Forces

Country of build:

United States

Builder:

Todd Pacific Shipyards, Los Angeles Division

Vigor Industrial

Bath Iron Works (BIW)

Planned:

Completed:

In service:

1997 – present (27 years)

Ship measurements

Displacement:

4,166 t

Length:

135.6 m

Beam:

13.7 m

Draft:

6.7 m

Machine

Propulsion system:

COGAG

Propulsion:

2 * GE LM 2500 gas turbines, 41,000 hp (31 MW)
1 * propeller and 2 * bow thrusters

Speed:

30 knots

Range:

5,000 nmi (9,300 km) at 18 kn (33 km/h)

Personnel

Complement:

222

Combat assets

Electronics:

AN/SPS-49 Air Search Radar
AN/SPS-55 Surface Search Radar
Mk.92 Missile Fire Control System
AN/SLQ-32 Electronic Warfare System
AN/SQS-56 Sonar
Mk.36 SRBOC Decoy System
AN/SQR-19 Towed Array Sonar System
AN/SQQ-89 ASW Integration System
AN/SLQ-25 Nixie Torpedo Decoy System

Armament:

1 * Mk.13 Mod.4 single-arm missile launcher for
36 * RIM-66 Standard / SM-1MR SAM missiles and 4 * RGM-84 Harpoon SSM
1 * Mk.75 (3"/62 — 76mm/62caliber) rapid firing gun
1 * Mk.15 Phalanx close-in weapon system (CIWS)
2 * Mk.32 (12.75"/324mm) triple torpedo tubes for 6 * Mk.46 torpedos

Aircraft:

2 * AB-212 ASW or S-70B Seahawk helicopters

The G-class is one of the frigate classes of the Turkish Navy. They are extensively modernized versions of ex-Oliver Hazard Perry-class guided-missile frigates of the US Navy, mainly designed for air defense with a weapons configuration that is optimized for general warfare.

The G-class frigates have undergone a major modernization program which included the retrofitting of a Turkish digital combat management system named GENESIS (Gemi Entegre Savaş İdare Sistemi). The system was designed and implemented jointly by the Turkish Navy and HAVELSAN, a Turkish electronic hardware systems and software company. The first GENESIS upgraded ship was delivered in 2007, and the last delivery is scheduled for 2011.

The GENESIS advanced combat management system includes the following characteristics and abilities:

A modern and reliable system
High performance
Open architecture
Capacity of tracking more than 1,000 tactical targets
Modern digital sensor data fusion
Automatic threat evaluation
Weapon engagement opportunities
Link-16/22 system integration

The modernization program also includes:

The addition of an 8-cell Mk-41 VLS for Evolved Sea Sparrow, including the upgrade of the Mk-92 fire control system by Lockheed Martin
The retrofitting of a new advanced SMART-S Mk2 3D air search radar to replace AN/SPS-49
The addition of a new long range sonar

The Mk-41 VLS will be fitted in front of the Mk.13 launchers, similar to their installation on the Adelaide-class frigates of the Royal Australian Navy, which are Australian-built derivatives of the Oliver Hazard Perry-class frigates. TCG Gediz became the first ship in the class to receive the Mk 41 VLS installation.

The «short hull» ex-Perry class frigates that are currently being operated by the Turkish Navy were modified with the ASIST landing platform system at the Istanbul Naval Shipyard, so that they can accommodate the S-70B Seahawk helicopter.