TCG ''Derya'' (A-1590) is a Turkish fast combat support

auxiliary ship An auxiliary ship is a naval ship designed to support combatant ships and other naval operations. Auxiliary ships are not primary combatant vessels, though they may have some limited combat capacity, usually for purposes of self-defense. Auxili ...

of type

replenishment oiler A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers. Th ...

of the

Turkish Naval Forces The Turkish Naval Forces (), or Turkish Navy (), is the naval warfare service branch of the TAF. The modern naval traditions and customs of the Turkish Navy can be traced back to 10 July 1920, when it was established as the ''Directorate o ...

, commissioned in January 2024.

History

In 2016, the

Defence Industry Agency In Turkey, Defence Industry Agency ( (SSB)); formerly ''Presidency of Defence Industries'' and ''Undersecretariat for Defence Industries (SSM)'' before that, is a civil institution established by the government to manage the Defense industry of Tu ...

(SSB) of the

Ministry of National Defense A ministry of defence or defense (see spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and military forces, found in states where the government is divide ...

launched a project for the building of an auxiliary ship to meet the needs of the

. The vessel is to provide oil, water, provisions, spare parts, medical supplies, ammunition, etc. to multiple ships at the same time during operations in the high seas and transoceanic waters. It was planned that the ship would serve also as a command and control ship in wartime with its effective combat management capacity. A contract was signed between the SSB and Sefine Shipyard on 10 July 2018. For the building of the ship, 58 months were planned. State-owned defense companies Aselsan and Havelsan were subcontractors of the shipyard. A domestic contribution rate of 77% was targeted in the project. In later years, the technical characteristics of the ship were extended, and the initially planned armament changed to more contemporary weapons. The ship was launched from the Sefine Shipyard in Altınova,

Yalova Province Yalova Province () is a Provinces of Turkey, province in northwestern Turkey, on the eastern coast of the Sea of Marmara. Its adjacent provinces are Bursa Province, Bursa to the south and Kocaeli Province, Kocaeli to the east. Its area is 798 ...

in October 2021. After successfully completing acceptance tests, she entered service in a ceremony on 19 January 2024, named TCG ''Derya'' and with

hull number A hull number is a serial identification number given to a boat or ship. For the military, a lower number implies an older vessel. For civilian use, the Hull Identification Number (HIN) is used to trace the boat's history. The precise usage varie ...

A-1590. She is the second auxiliary ship with the same name following TCG ''Derya'' (A-576), ex USS ''Piedmont'' (AD–17), which served between 1982 and 1994 in the Turkish Navy.

Characteristics

''Derya'' provides replenishment at sea for solid, liquid materials and ammunition. She can be used in intelligence gathering,

search and rescue Search and rescue (SAR) is the search for and provision of aid to people who are in distress or imminent danger. The general field of search and rescue includes many specialty sub-fields, typically determined by the type of terrain the search ...

and humanitarian evacuation operations as well as

natural disaster A natural disaster is the very harmful impact on a society or community brought by natural phenomenon or Hazard#Natural hazard, hazard. Some examples of natural hazards include avalanches, droughts, earthquakes, floods, heat waves, landslides ...

relief tasks. The ship is long and has a beam of and a displacement tonnage . She has a maximum speed of , an operation range of with more than 30 days of endurance at sea. The ship's refuel capacities are for F-76 fuel, for F-44 fuel and for fresh water. She can carry 48 containers. The vessel is powered by two General Electric LM2500

gas turbine A gas turbine or gas turbine engine is a type of Internal combustion engine#Continuous combustion, continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas gene ...

s, two

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

s and two

electric motor An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a electromagnetic coil, wire winding to gene ...

s. She is equipped with Aselsan MAR-D surveillance radar, Havelsan ADVENT naval combat management system. The total number of the ship's crew is 326. The vessel is armed with one

Aselsan GOKDENIZ The GOKDENIZ () complex along with Aselsan ATOM 35mm airburst ammunition is an all-weather-capable Turkish 35 mm dual barrel close-in weapon system (CIWS) developed by Aselsan. It is a CIWS variant of KORKUT Self-propelled anti-aircraft g ...

35 mm

close-in weapon system A close-in weapon system (CIWS ) is a point-defense weapon system for detecting and destroying short-range incoming missiles and enemy aircraft which have penetrated the outer defenses, typically mounted on a naval ship. Nearly all classes of l ...

(CIWS) at the bow and one at the stem, two 25 mm Aselsan STOP remote weapon stations. She carries three helicopters, one on the

helipad A helipad is the landing area of a heliport, in use by helicopters, powered lift, and vertical lift aircraft to land on surface. While helicopters and powered lift aircraft are able to operate on a variety of relatively flat surfaces, a fa ...

and two in the

hangar A hangar is a building or structure designed to hold aircraft or spacecraft. Hangars are built of metal, wood, or concrete. The word ''hangar'' comes from Middle French ''hanghart'' ("enclosure near a house"), of Germanic origin, from Frankish ...

References

{{DEFAULTSORT:Derya (A-1590 Auxiliary ships of the Turkish Navy 2021 ships Ships built in Yalova Military vehicles introduced in the 2020s