Ukraine Ada class corvette Hetman Ivan Mazepa is being completed.

According to information published by Военный Осведомитель on January 4, 2023, the Ada class (MILGEM) anti-submarine corvette Hetman Ivan Mazepa is being completed at the Turkish Shipyard RMK Marine.
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Future Ukrainian Ada class corvette Hetman Ivan Mazepa. (Picture source: Военный Осведомитель)

Hetman Ivan Mazepa (F211) is an Ada-class anti-submarine corvette of the Ukrainian Navy currently under construction. Hetman Ivan Mazepa was named after Ivan Mazepa, a prominent Ukrainian Cossack leader. The ship was officially laid down on 7 September 2021, and launched on 2 October 2022.

The Ada class is a class of anti-submarine corvettes developed primarily for the Turkish Navy during the first stage of the MILGEM project.

The class vessels are propelled by a RENK CODAG Cross-Connect propulsion plant. It consists of a gas turbine rated at 23,000 kilowatts (31,000 hp) and two diesel engines rated at 4,320 kW (5,790 hp).

Each diesel engine drives one controllable pitch propeller via a two-speed main reduction gear. The cross-connect gear splits the power from the gas turbine via both main reduction gears to the two shafts.

The ship can be operated in Diesel mode, in single gas turbine mode, or in CODAG mode. CODAG is where diesel and gas turbine engines are providing combined power (27,320 kW).

The class ships have a national hull-mounted sonar developed by the Scientific and Technological Research Council of Turkey. The sonar dome has been developed by STM's subcontractor ONUK-BG Defence Systems, extensively employing nano-enhanced Fiber Reinforced Polymer.

The Ada class features an Electronic Chart Precise Integrated Navigation System (ECPINS), supplied by OSI Geospatial. Integrated Platform Management System (IPMS) for controlling machinery, auxiliary systems, power generation and distribution was delivered by STM's subcontractor Yaltes JV.

Main systems integrated to IPMS are power management system, fire detection system, fire fighting, damage control system, CCTV system and stability control system.