Japanese Navy commissioned new Submarine Rescue Ship

The Japan Maritime Self-Defense Force (JMSDF) commissioned a new submarine rescue ship, JS Chiyoda (ASR-404), on 20 March.

JS Chiyoda replaced its identically named predecessor which was decommissioned on the same day.

The vessel has been built by Mitsui Engineering & Shipbuilding (MES).

JS Chiyoda 01

According to specifications provided by MES, the vessel has a speed of 20 kt, displacement of 5,600 tonnes , beam of 20 m and a draught of 5.2 m. The ship is powered by two diesel engines, each of which generates 19,500hp

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Gulf Island Shipyards to build new salvage ship for US Navy

The contract awarded to Louisiana-based Gulf Island Shipyards has an initial value of $63.6 million to fund the first Towing, Salvage and Rescue Ship and includes options for the construction of seven additional T-ATS vessels.

The T-ATS Class will replace two different classes of vessels in the Navy: The Safeguard Class of Salvage and Rescue Ship (T-ARS) and the Powhatan Class Fleet Ocean Tug (T-ATF).

The firm-fixed-price and fixed-price with economic price adjustment contract is worth around $63.5 million. This contract includes options for seven additional vessels which, if exercised, would bring the cumulative value of this contract to around $522.7 million.

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The T-ATS will operate as the primary open ocean towing vessel for the U. S. Navy, and will have salvage operations and submarine rescue mission support capabilities. The T-ATS will be based on existing commercial towing offshore vessel designs which provide similar capabilities to those needed for U.S. Navy operations.

The vessel will be capable of performing towing, deep ocean search and recovery, mobile diving and salvage unit-embarked operations, submarine rescue vessel of opportunity, oil spill response, and humanitarian assistance.

The first ship in the class will be built at the company’s shipyard in Houma, Louisiana, and is expected to be completed by September 2020.

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Turkey is hosting Dynamic Monarch 2017, NATO submarine rescue exercise…

DYNAMIC MONARCH 2017 (DYMH17) is a Submarine Search, Escape and Rescue exercise.

The exercise is designed to demonstrate multi-national submarine rescue co-operation and to share related knowledge amongst worldwide partners.

Participants are from Canada, France, Italy, Norway, Poland, Spain, Turkey, and the United Kingdom. Additionally, representatives from Bangladesh, Chile, Israel and Sweden is participating the exeercise as observers.

The sea phase has been run for 10 days and consisted of numerous rescue and intervention exercises utilising rescue vehicles and chambers, remote operated vehicles, atmospheric diving suits and divers.


A Submarine Parachute Assistance Group (SPAG) rescued sailors during an escape scenario for exercise. After being rescued, the sailors simulated receiving medical care aboard Turkish rescue ship TCG Alemdar (A-582).

In the rescue phase; NATO Submarine Rescue System (NSRS) evacuated simulated casulities from Turkish submarine. During the exercise Italian, NSRS, Turkish rescue ships has worked with Spanish and Turkish submarines.

Turkish rescue ship TCG Alemdar (A-582) has conducted training with Spanish submarine Tramontana. After the bottomed distress submarine dedected and identified by Turkish Mine Hunter TCG Alanya (M-265), Turkish ADS (Atmospheric Diving Suit) has been launched from TCG Alemdar. ADS connected the SEVDS (Submarine Emergency Ventilation and Decompression System) hoses to Spanish submarine ESPS Tramontana for ventilating the ship with fresh air which was produced by high pressure breathing air compressors onboard of TCG Alemdar.

In another phase; Italian rescue ship ITS Anteo has deployed national SRV (submarine rescue vehicle) to be able to mate with bottomed submarine ESPS Tramontana.

Participants also executed a PHOTEX in the first day of exercise 🇨🇦🇫🇷🇮🇹🇧🇻🇵🇱🇪🇦🇹🇷🇬🇧🇺🇲

(All photos from NATO Maritime Command official facebook page)

Turkey; 1st ship of RATSHIP project, TCG IŞIN (A-583) commisioned to Navy on 22 July

TCG IŞIN (A-583) was designed by Turkish company SEFT and was built by Istanbul Shipyard in Tuzla, Turkey. She is a dedicated submarine rescue intervention ship to perform subsea and surface rescue operations and  fire fighting capabilities in various sea conditions.

She is equipped with a twin controlled pitch propeller (CPP) system, aft and bow tunnel thrusters and a recractable thruster which allows high manouverability and position keeping capability.

She has 2X3500 kw main engines and two shafts with cpp as main propulsion system. And she is capable of max. 18 knots with full load at 2400 tonnes.

The ship has a wide range of equipments for rescue and towing operations. She has the ability of intervention on a damaged submarine in 600 m with Submarine Emergency Ventilation and Decompression (SEVDS) System. There is also a diving stage, a decompression chamber for 6 people, towed side-scan sonar system and Remote Operation Vehicle (ROV) with their LARS.

TCG IŞIN (A-583) is also a diving support ship with high pressure breathing air compressors and HeO2 mixed gas system installed onboard the ship.

TCG AKIN (A-584), the second ship of the project is now conducting sea trials and according to navy authorities it is planned to deliver the ship at the end of Semptember 2017.

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TCG IŞIN (A-583) commissioning ceremony at İstanbul Shipyard
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TCG IŞIN (A-583) commissioning ceremony at İstanbul Shipyard

Please follow the below links for more information about the projects and the ship details:

İstanbul Shipyard Official WebSite…

Data Sheet for RATSHIP Project…

TCG Alemdar Submarine Rescue Mother Ship (MOSHIP), Turkey

TCG Alemdar Submarine Rescue Mother Ship (MOSHIP) entered service with the Turkish Naval Forces Command in January 2017.

It was designed by Turkish company SEFT based on the SNR-MOSHIP, and was built by Istanbul Shipyard in Tuzla, Turkey.

The ship is intended for a number of surface and underwater missions, such as search and rescue of submarine personnel, towing broken down and wrecked surface ships, removal of underwater debris, and underwater repair works.

The MOSHIP is capable of operating in adverse weather and sea conditions.

Original article here (naval-technology.com)