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İstif vs Sigma

İstif vs Sigma at a glance — displacement 3,100 vs 1,692 tons, length 113 vs 90 m, speed 29 vs 28 knots, crew 123 vs 80.

Specifications
İstif Sigma
Origin 🇹🇷 Turkey 🇳🇱 Netherlands
Category Frigate Frigate
Type Multi-role frigate Multi-purpose corvette / frigate
Manufacturer Istanbul Naval Shipyard Damen Schelde Naval Shipbuilding
Year introduced 2024 2007
Number built 3 units 10 units
Estimated unit price $500 million $222 million
Displacement 3,100 tons 1,692 tons
Maximum speed 29.0 knots 28.0 knots
Range 5,700 nm 4,800 nm at 14 knots
Length 113.2 m 90.7 m
Beam 14.4 m 13.0 m
Crew 123 80
Performance Radar Chart
Armament & Systems
İstif Sigma
Armament
  • 1 × MKE 76 mm/62-caliber gun or OTO Melara 76 mm Super Rapid main gun
  • 1 × Aselsan GOKDENIZ 35 mm dual barreled CIWS
  • 2 × Aselsan STOP 25 mm RCWS
  • 16 × Atmaca anti-ship missiles
  • 16-cell MiDLAS vertical launching system (SAPAN, SIPER Block 1, or Hisar-D missiles)
  • 2 × 324 mm Triple Torpedo launchers (Roketsan Orka or MK-46M5 Torpedoes)
  • 1 × Oto Melara 76 mm gun
  • 2 × 20 mm Denel GI-2 gun
  • 2 × quad (8) Mistral TETRAL Anti-air missile
  • 4 × Exocet MM40 Block II/MM40 Block III anti-surface missile
  • 2 × B515/3 triple launchers for lightweight WASS A244-S mod.3 / EuroTorp MU 90 torpedoes
Propulsion 1 x GE LM2500 Gas turbine, 2 x 5.766HP MTU Diesel Machine, 2 x Controllable Pitch Propeller (CPP) 2 × SEMT Pielstick 20PA6B STC rated at 8910 kW each driving a lightweight Geislinger coupling; 4 × Caterpillar 3406C TA generator rated at 350 kW each; 1 × Caterpillar 3304B emergency generator rated at 105 kW; 2 × shaft with Rolls-Royce Kamewa 5 bladed controllable pitch propeller
Change comparison vs
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Frequently Asked Questions

Which has greater displacement, the İstif-class or Sigma-class?
The İstif-class has greater displacement at 3,100 tons compared to the Sigma-class's 1,692 tons.
Which is faster, the İstif-class or Sigma-class?
The İstif-class is faster with a maximum speed of 29 knots compared to the Sigma-class's 28 knots.
Which has longer range, the İstif-class or Sigma-class?
The İstif-class has a longer range at 5,700 nautical miles compared to the Sigma-class's 4,800 nautical miles.
Which is longer, the İstif-class or Sigma-class?
The İstif-class is longer at 113.2 meters compared to the Sigma-class's 90.7 meters.
How many crew members do the İstif-class and Sigma-class have?
The İstif-class has a larger crew complement of 123 compared to the Sigma-class's 80 crew members.
Which is more expensive, the İstif-class or Sigma-class?
The İstif-class is more expensive at approximately $500 million per unit compared to the Sigma-class at $222 million.
Which has been built in greater numbers, the İstif-class or Sigma-class?
The Sigma-class has been built in greater numbers with 10 vessels compared to 3 vessels of the İstif-class.