F-516 İZMİR Frigate Begins Critical Sea Acceptance Trials
On August 10, 2026, the Turkish naval defense industry achieved a significant milestone as the F-516 İZMİR, the second vessel of the MİLGEM İSTİF-class frigate program, officially commenced its Sea Acceptance Trials. Developed under the leadership of the Presidency of Defense Industries and constructed through a strategic partnership between TAİS and STM at the Anadolu Shipyard, this state-of-the-art warship represents a leap forward in national maritime security. The commencement of these trials marks the transition from intensive shipyard construction to operational validation, bringing the vessel closer to its eventual commissioning into the Turkish Naval Forces inventory.
- The F-516 İZMİR frigate launched its mandatory Sea Acceptance Trials on August 10, 2026.
- The vessel features an impressive domestic production rate exceeding 80 percent.
- The Turkish Navy plans to expand the total number of İSTİF-class frigates to eight units.
The Navy Evaluates Combat and Navigation Capabilities
The Sea Acceptance Trials serve as the final comprehensive assessment of the F-516 İZMİR before it transitions into active service. Engineers and naval officers are rigorously testing the platform’s infrastructure alongside its complex mission systems. The evaluation process covers a broad spectrum of critical functions, including navigation, maneuverability, propulsion efficiency, and electrical system reliability under various maritime conditions.
These frigates are engineered to perform diverse roles, ranging from air defense and surface warfare to anti-submarine operations and long-range reconnaissance. By ensuring that every subsystem communicates seamlessly within the central command architecture, the naval authorities aim to confirm that the ship meets the stringent performance standards required for modern oceanic security challenges.
The Industry Increases Domestic Components
A defining characteristic of the F-516 İZMİR is its high level of local manufacturing, with more than 80 percent of the ship’s components produced domestically. This commitment to self-reliance is evident in the vessel’s sophisticated combat suite. The ship is equipped with the CENK-S three-dimensional search radar and the AKREP fire control radar, both of which provide superior situational awareness.
Furthermore, the frigate integrates the GÖKDENİZ close-in weapon system for point defense, alongside the ATMACA anti-ship missile system and the MİDLAS vertical launch system. These national solutions allow the Turkish Navy to maintain full operational control over its combat systems without foreign dependency, ensuring that the fleet remains agile and difficult to compromise in contested environments.
The Production Strategy Expands the Fleet
Following the successful deployment of the TCG İSTANBUL (F-515), the F-516 İZMİR continues the momentum of the İSTİF-class program. The production pipeline remains active, with construction underway for the TCG İZMİT (F-517), TCG İÇEL (F-518), TCG AKDENİZ (F-519), and TCG KARADENİZ (F-520). A strategic decision made in 2024 has officially increased the total procurement target for the class to eight frigates.
These warships are designed with a length of 113.2 meters and a displacement of approximately 3,150 tons. They are capable of reaching speeds exceeding 29 knots, with an operational range of 5,700 nautical miles at a cruising speed of 14 knots. As the sea trials for the İZMİR continue, the project demonstrates Turkey’s growing capacity to sustain the serial production of advanced, multi-role naval platforms.
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