HD Hyundai Heavy Industries Co., Ltd. is the world's largest shipbuilding company and a major heavy equipment manufacturer. Its headquarters are in Ulsan, South Korea.
A patrol boat is a relatively small naval vessel generally designed for coastal defence, border security, or law enforcement. There are many designs for patrol boats, and they generally range in size. They may be operated by a nation's navy, coast guard, police, or customs, and may be intended for marine, estuarine, or river environments.
A stealth ship is a ship that employs stealth technology construction techniques in an effort to make it harder to detect by one or more of radar, visual, sonar, and infrared methods.
MILGEM project (Turkish:Milli Gemi Projesi, English: National Ship Project) is a national warship program of the Republic of Turkey. Managed by the Turkish Navy, the project aims at developing multipurpose corvettes, frigates and destroyers that can be deployed in a range of missions, including reconnaissance, surveillance, early warning, anti-submarine warfare, surface-to-surface and surface-to-air warfare, and amphibious operations.
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 the 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 Emilio Jacinto (PS-35) is the lead 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 Peacock (P239) during her service with the Royal Navy.
The Jacinto-class patrol vessels currently in service with the Philippine Navy are three ships formerly belonging to the Royal Navy's Hong Kong Squadron as Peacock-class corvettes until 1997. The ships have undergone combat, electronics, weapon, propulsion and hull upgrades, with the most recent upgrade completed in August 2019. These increased their capabilities compared to the original Peacock-class vessels.
The Arafura class is a class of offshore patrol vessels being built for the Royal Australian Navy (RAN). Initially proposed in the 2009 Defence White Paper and marked as procurement project SEA 1180, it was originally planned that 20 Offshore Combatant Vessels (OCV) would replace 26 vessels across four separate ship classes: the Armidale-class patrol boats, the Huon-class minehunters, the Leeuwin-class survey vessels, and the Paluma-class survey motor launches. Although having a common design, the ships would use a modular mission payload system to fulfill specific roles; primarily border patrol, mine warfare, and hydrographic survey. The 2013 Defence White Paper committed to the OCV project as a long-term goal, but opted in the short term for an accelerated procurement of an existing design to replace the Armidales, and life-extension refits for the other types. This resulted in the Offshore Patrol Vessel (OPV) project and the number of vessels reduced to 12. However, this was further increased to 14 when 2 further Mine Counter Measures variants were proposed under SEA 1905.
The Del Pilar-class are offshore patrol vessels currently in service with the Philippine Navy and previously in service with the US Coast Guard as Hamilton-class high endurance cutters. The Department of National Defense is currently in the process of upgrading their systems and capabilities under a modernization project awarded to Hanwha Systems of South Korea.
The TRML is a family of air defense radars first developed by Telefunken and currently produced by Hensoldt. It is a development of the earlier TRMS.
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 Turkish Navy has commissioned all four Ada-class corvettes.
The Jose Rizal-class of multi-role guided missile frigates, currently in service with the Philippine Navy, are a heavily modified variant of the ROK Navy's Incheon-class frigates. The ships, which were built by Hyundai Heavy Industries (HHI), are specifically accommodated to fit the requirements of the Philippine Navy. The introduction of the frigates improved the capabilities of the Philippine Navy's Offshore Combat Force, which is mostly composed of ships that were retired from other countries and subsequently transferred to the Philippines.
The Thaon di Revel class is a class of multipurpose offshore ships built by Fincantieri for the Italian Navy.
The Avante 2200 is a corvette design by the Navantia shipyard of Spain. Navantia has developed an Avante family of ships with different sizes, and adapted to different missions. They share the same design standard.
BRP Jose Rizal (FF-150) is the lead ship of her class of guided missile frigates of the Philippine Navy. She is the first purpose-built frigate of the service, as its previous major warships were mostly obtained from retired patrol ships of other countries. She is also one of the navy's primary warships able to conduct multi-role operations, such as coastal patrol, anti-air and anti-submarine warfare.
BRP Antonio Luna (FF-151) is the second ship of the Jose Rizal-class of guided missile frigates in service with the Philippine Navy. She is able to conduct multi-role operations such anti-surface warfare (ASUW), anti-submarine warfare (ASW), and limited anti-air warfare (AAW). She is one of the service's primary warships until the introduction of new and more powerful contemporaries.
HMS Spey is a Batch 2 River-class offshore patrol vessel of the Royal Navy. Named after the River Spey in Scotland, she is the eighth Royal Navy ship to be named Spey and is the fifth Batch 2 River-class vessel to commission and is forward deployed long-term to the Indo-Pacific region with her sister ship HMS Tamar.
The Miguel Malvar-class frigate is a class of frigates designed and currently built by Hyundai Heavy Industries (HHI) for the Philippine Navy. It was previously known as the HDC-3100 corvette based on the company's product nomenclature system and the service's acquisition project name until it was reclassified to its current "FF" frigate designation.
The Wonhae class are a series of six offshore patrol vessels being built for the Philippine Navy by Hyundai Heavy Industries (HHI) at its Ulsan shipyard in South Korea. The last will be completed in 2028.
Philippine Navy 
