İstif-class frigate

	TCG Istanbul (F-515) at the Bosporus strait, during the naval parade for celebrating the centennial of the Turkish Republic, October 29, 2023.
Class overview
Name	Istif class
Builders	Istanbul Naval Shipyard
Operators	Turkish Naval Forces
Preceded by	Barbaros class
Built	2017–present
In commission	2024-present
Planned	8
Building	5
Completed	3
Active	1
General characteristics
Type	Multirole frigate
Displacement	3,100 tonnes
Length	113.2 m (371 ft 5 in)
Beam	14.40 m (47 ft 3 in)
Draft	4.05 m (13 ft 3 in)
Installed power	4 x 560kw Generator
Propulsion	1 x GE LM2500 Gas turbine; 2 x 5.766HP MTU Diesel Machine; 2 x Controllable Pitch Propeller (CPP);
Speed	Economy: 14 kn (26 km/h; 16 mph); Maximum: 29 kn (54 km/h; 33 mph);
Range	5,700 nmi (10,600 km; 6,600 mi) at 14 kn (26 km/h; 16 mph)
Boats & landing; craft carried	2 x RHIB
Complement	123
Sensors &; processing systems	Radars: Cenk-400N 4D AESA search radar, ASELSAN ALPER-200N LPI Surface Radar, AKREP-300N (AKR-D Block B-1/2) Fire Control Radar,; Systems: TAKS-100/76GFCS main gun fire control system, ATMACA 100/AFCS anti-ship missile fire control system, HİSAR 100N/FCS air defence missile fire control system, KULAÇ Sounder system, DEMES meteorological measurement system, AHTAPOT-100 Electro-optical director, PIRI-100 IRST, ANS 510-M gyro system, LIAS 200-N Advanced Laser Warning Receiver System, Infrared Trace Management System, SeaEye-AHTAPOT EO Reconnaissance and Surveillance system; Sonar: FERSAH 100N/MF hull mounted sonar; Communications: SATCOM, Link 11/16, Link 22 Local Area Network, Internal Communication System, Underwater phone; Combat Systems: ADVENT Combat Management system, GEMS Integrated combat system, IdentIFF M5 TPX & I/LR IFF system, AcroSAT Ku-120-M Satellite combat system, AcroSAT Ku-150-M Satellite combat system;
Electronic warfare; & decoys	ESM: ASELSAN ARES 2N/NGE; ECM: AREAS 2NC/E; ARES-NEWS Central management system; Decoy: Aselsan HIZIR Torpedo countermeasures system; KARTACA-N Decoy ejection system;
Armament	Guns:; 1 × OTO Melara 76 mm Super Rapid or MKE National Naval Gun main gun; 1 × Aselsan GOKDENIZ 35 mm dual barreled CIWS; 2 × Aselsan STOP 25 mm RCWS; Anti-ship missiles:; 2 × 8 Atmaca anti-ship missiles; Vertical launching system:; 16-cell MIDLAS Vertical Launching System:; up to 16 SAPAN or SIPER Block 1 Surface-to-air missiles or up to 64 smaller Hisar-D surface to air missiles ; Torpedoes:; ZIPKIN 100/D Torpedo tube system; 2 × 324 mm (13 in) Triple Torpedo launchers with MK-46M5 or Orka Torpedoes;
Aircraft carried	Hangar and platform for:; S-70B Seahawk ASW helicopter; Unmanned aerial vehicles (UAV);

The Istif-class frigates are a group of eight multirole frigates currently being constructed for the Turkish Naval Forces. Developed under the MILGEM national warship program as the I-class frigate, the Istanbul class is an enlarged version of the Ada-class anti-submarine corvette, with enhanced endurance and MIDLAS Vertical Launching System (VLS) for multi-role capability. On 19 January 2017, Turkish Navy held a ceremonial steel cut for the lead ship TCG Istanbul (F 515). Istanbul was laid down on 3 July 2017 and launched on 23 January 2021.

Class overview
TCG Istanbul (F-515) at the Bosporus strait, during the naval parade for celebrating the centennial of the Turkish Republic, October 29, 2023.
Name	Istif class
Builders	Istanbul Naval Shipyard
Operators	Turkish Naval Forces
Preceded by	Barbaros class
Built	2017–present
In commission	2024-present
Planned	8
Building	5
Completed	3
Active	1
General characteristics
Type	Multirole frigate
Displacement	3,100 tonnes
Length	113.2 m (371 ft 5 in)
Beam	14.40 m (47 ft 3 in)
Draft	4.05 m (13 ft 3 in)
Installed power	4 x 560kw Generator
Propulsion	1 x GE LM2500 Gas turbine 2 x 5.766HP MTU Diesel Machine 2 x Controllable Pitch Propeller (CPP)
Speed	Economy: 14 kn (26 km/h; 16 mph) Maximum: 29 kn (54 km/h; 33 mph)
Range	5,700 nmi (10,600 km; 6,600 mi) at 14 kn (26 km/h; 16 mph)
Boats & landing craft carried	2 x RHIB
Complement	123
Sensors & processing systems	Radars: Cenk-400N 4D AESA search radar, ASELSAN ALPER-200N LPI Surface Radar, AKREP-300N (AKR-D Block B-1/2) Fire Control Radar, Systems: TAKS-100/76GFCS main gun fire control system, ATMACA 100/AFCS anti-ship missile fire control system, HİSAR 100N/FCS air defence missile fire control system, KULAÇ Sounder system, DEMES meteorological measurement system, AHTAPOT-100 Electro-optical director, PIRI-100 IRST, ANS 510-M gyro system, LIAS 200-N Advanced Laser Warning Receiver System, Infrared Trace Management System, SeaEye-AHTAPOT EO Reconnaissance and Surveillance system Sonar: FERSAH 100N/MF hull mounted sonar Communications: SATCOM, Link 11/16, Link 22 Local Area Network, Internal Communication System, Underwater phone Combat Systems: ADVENT Combat Management system, GEMS Integrated combat system, IdentIFF M5 TPX & I/LR IFF system, AcroSAT Ku-120-M Satellite combat system, AcroSAT Ku-150-M Satellite combat system
Electronic warfare & decoys	ESM: ASELSAN ARES 2N/NGE ECM: AREAS 2NC/E ARES-NEWS Central management system Decoy: Aselsan HIZIR Torpedo countermeasures system KARTACA-N Decoy ejection system
Armament	Guns: 1 × OTO Melara 76 mm Super Rapid or MKE National Naval Gun main gun 1 × Aselsan GOKDENIZ 35 mm dual barreled CIWS 2 × Aselsan STOP 25 mm RCWS Anti-ship missiles: 2 × 8 Atmaca anti-ship missiles Vertical launching system: 16-cell MIDLAS Vertical Launching System: up to 16 SAPAN or SIPER Block 1 Surface-to-air missiles or up to 64 smaller Hisar-D surface to air missiles Torpedoes: ZIPKIN 100/D Torpedo tube system 2 × 324 mm (13 in) Triple Torpedo launchers with MK-46M5 or Orka Torpedoes
Aircraft carried	Hangar and platform for: S-70B Seahawk ASW helicopter Unmanned aerial vehicles (UAV)