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G-class frigate
TCG Gaziantep (F-490) in Cartagena, 2010.jpg
F-490 TCG Gaziantep, a G class (upgraded O. H. Perry class) frigate of the Turkish Navy, in Cartagena, Spain.
Class overview
Name: G class
Operators:  Turkish Navy
Completed: 8
Active: 8
General characteristics
Type: Frigate
Displacement: 4,100 long tons (4,166 t) full load
Length: 135.6 m (444 ft 11 in)
Beam: 13.7 m (44 ft 11 in)
Draught: 6.7 m (22 ft 0 in)
Propulsion: 2 × GE LM 2500 gas turbines, 41,000 hp (31 MW)
1 propeller and 2 × bow thrusters
Speed: 30 knots (56 km/h; 35 mph)
Range: 5,000 nmi (9,300 km) at 18 kn (33 km/h)
Complement: 222 (19 officers, 203 men)
Sensors and
processing systems:

Combat Management System: GENESIS (Gemi Entegre Savaş İdare Sistemi)[1]

Search radar: SMART-S Mk2[2]
Armament: • 1 x Mk 15 Phalanx CIWS
• 1 × Oto Melara 76mm DP gun
• 8 × Harpoon SSM
• 32 × SM-1 MR SAM
• 32 × ESSM launched from Mk-41 VLS[3] (4 ESSM missiles per MK-41 cell through the use of MK25 Quadpack canisters, total of 8 cells)[4]
Aircraft carried: 1 × S-70B Seahawk or AB-212 (ASW/ASuW/EW)

The G class (Turkish: Gabya sınıfı fırkateyn(ler)) is one of the frigate classes of the Turkish Navy. They are extensively modernized versions of ex-Oliver Hazard Perry class guided-missile frigates, 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).[5] The system was designed and implemented jointly by the Turkish Navy and Havelsan, a Turkish electronic hardware systems and software company.[6] The first GENESIS upgraded ship was delivered in 2007, and the last delivery is scheduled for 2011.[7][8] The GENESIS advanced combat management system includes the following characteristics and abilities:[9]

  • 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 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. F-495 TCG Gediz became the first ship in the class to receive the Mk 41 VLS installation.[14]

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.


See also


External links

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