The Republic of Singapore Navy (RSN) is the naval branch of the Singapore Armed Forces (SAF), responsible for the defence of Singapore against sea-borne threats and protection of its sea lines of communications. The service was formally established in 1967 and has since undergone a substantial modernisation.
A Small Waterplane Area Twin Hull, better known by the acronym SWATH, is a twin-hull ship design that minimizes hull cross section area at the sea's surface. Minimizing the ship's volume near the surface area of the sea, where wave energy is located, maximizes a vessel's stability, even in high seas and at high speeds. The bulk of the displacement necessary to keep the ship afloat is located beneath the waves, where it is less affected by wave action. Wave excitation drops exponentially as depth increases, so wave action normally does not affect a submerged submarine at all. Placing the majority of a ship's displacement under the waves is similar in concept to creating a ship that rides atop twin submarines.
The "Kolkata class" (Project 15A) are a class of stealth guided missile destroyers constructed for the Indian Navy. The class comprises three ships – Kolkata, Kochi and Chennai, all of which were built by Mazagon Dock Limited (MDL) in India, and are the largest destroyers to be operated by the Indian Navy. Due to delays in construction and sea trials, the initial commissioning date of the first ship of the class was pushed back from 2010 to 2014.
The Sigma class is a Dutch-built family of modular naval vessels, of either corvette or frigate size, designed by Damen Group.
The four De Zeven Provinciën-class frigates are highly advanced air-defence and command frigates in service with the Royal Navy of the Netherlands. This class of ships is also known as LCF. The ships are similar to the German Sachsen-class frigates in role and mission.
USNS Stalwart (T-AGOS-1) was a Modified Tactical Auxiliary General Ocean Surveillance Ship and the lead ship of her class.
The Holland-class ocean-going patrol vessels are a class of four ocean-going patrol vessels constructed for the Royal Netherlands Navy. They are designed to fulfill patrol and intervention tasks against lightly armed opponents, such as pirates and smugglers, but have much higher level electronic and radar surveillance capabilities which are used for military stabilization and security roles, short of outright war. Without sonar or long range weapons, they utilize the surveillance capabilities of the Thales integrated mast, which integrates communication systems and two 4-faced phased arrays for air and surface search.
BRP Artemio Ricarte (PS-37) is third ship of the Jacinto-class corvettes currently assigned to the Offshore Combat Force of the Philippine Fleet. She is one of few ships in the Philippine Navy equipped with modern systems after the completion of combat, navigation and weapon systems upgrade of her class in August 2019. She was originally called HMS Starling (P241) during her service with the Royal Navy.
The Gowind design is a family of steel monohull frigates, corvettes and offshore patrol vessels developed since 2006 by France's Naval Group, formerly known as DCNS, to conduct missions in littoral zone such as anti-submarine warfare (ASW). The Gowind family includes vessels with lengths from 85 to 111 metres and displacement from 1,000 tons to 3,100 tons.
The BRP Apolinario Mabini (PS-36) is the second ship of the Jacinto-class corvettes currently assigned to the Offshore Combat Force of the Philippine Fleet. She is one of few ships in the Philippine Navy equipped with modern systems after the completion of combat, navigation and weapon systems upgrade of her class in August 2019. She is named after Apolinario Mabini, a hero of the Philippine revolution and a former prime minister. She was originally called HMS Plover (P240) during her service with the Royal Navy.
The Kalvari class is a class of diesel-electric attack submarines based on the Scorpène-class submarine being built for the Indian Navy. The class and submarines take their names from the first submarines inducted in the Indian Navy. The submarines are designed by French naval defence and energy company DCNS and are being manufactured by Mazagon Dock Limited in Mumbai.
The Izumo-class multi-purpose destroyers or 22DDH are helicopter carriers in service with the Japan Maritime Self-Defense Force (JMSDF). The class is designated as a multi-purpose operation destroyer by the Japanese government due to limits on the Japanese Constitution prohibiting the acquisition of offensive platforms. The ships of this class are currently the largest surface combatants of the JMSDF, taking over the mantle previously held by the Hyūga-class helicopter destroyers. The lead ship was officially unveiled at Yokohama on 6 August 2013. Both ships of the class could operate STOVL Lockheed Martin F-35 Lightning IIB aircraft after modifications.
The Sovremenny class, Soviet designation Project 956 Sarych (buzzard), is a class of anti-ship and anti-aircraft guided missile destroyers of the Soviet and later Russian Navy. The ships are named after qualities, with "Sovremenny" translating as "modern" or "contemporary". Most of the ships have been retired from active service and one converted into a museum ship in 2018; as of 2020 one remains in commission with the Russian Navy with several in overhaul. Four modified ships were delivered to the People's Liberation Army Navy, and remain in service.
JS Makinami (まきなみ) is the third vessel of the Takanami class destroyers of the Japan Maritime Self-Defense Force (JMSDF).
The Sandhayak-class survey ships are a series of eight vessels built by Garden Reach Shipbuilders and Engineers (GRSE), Kolkata and Goa Shipyard, Ltd., Vasco for the Indian Navy. While Sandhayak, Investigator, Nirdeshak, Nirupak were built in GRSE; Sarveshak, Jamuna, Darshak, Sutlej were built by Goa Shipyard. The vessels equipped with four survey motor boats, two small boats and are powered by two diesel engines with a top speed of 16 knots. They have a helicopter deck and are also armed with a Bofors 40 mm/60 gun mount for self-defense.
BRP Gregorio del Pilar (PS-15) is the lead ship of her class of offshore patrol vessels of the Philippine Navy. She is the second ship to be named after Gregorio del Pilar, a Filipino revolutionary general known for his role at the Battle of Tirad Pass. She was originally designated as "PF-15" from 2012 to mid-2016. Then the Navy adopted a new code designation system and she was redesignated as "FF-15". In February 2019, the Navy downgraded the status of the entire class from frigate to patrol ship and redesignated her to "PS-15".
The Hibiki-class ocean surveillance ship is a class of surveillance ships operated by the Japan Maritime Self-Defense Force. The ships have a small-waterplane-area twin hull (SWATH) design.
JS Hibiki (AOS-5201) is a Hibiki-class ocean surveillance ship of Japan Maritime Self-Defense Force.
JS Harima (AOS-5202) is a Hibiki-class ocean surveillance ship of Japan Maritime Self-Defense Force.
Japan