Pohang-class corvette
The ship is designed for patrolling maritime border, including the Northern Limit Line, protecting the littoral zone, and combating the North Korean vessels.[6] Captain Eom subsequently persuaded ROKN naval command to change the hull design for the construction of the second batch of the Donghae-class corvette.However, the ship lacks air-search radar along with anti-air weapon, which was the biggest topic among the militaries of the world as a result of the Falklands War, due to low on budget.The ship has limited defense capability against air and missile attack, only assisted by GoldStar ULQ-12K ESM (electronic support measures) and Mk 36 SRBOC (Super Rapid Bloom Offboard Countermeasures).[9] Additional system changes include Marconi S1810 fire control radar and Radamec 2400 optronic director, both localized by Samsung.In 1986, ROKS Pohang sunk an armed North Korean vessel as it ignored warnings after crossing the NLL of the Sea of Japan.[13] On 1:30 AM of 18 September 1996, a local taxi driver found a grounded North Korean Sang-O-class submarine on the coast of Gangneung.On 15 June, a North Korean torpedo boat opened fire at Chamsuri-class with grenades, rifles, and 25 mm cannons.[22] On 29 September 2006, the Defense Acquisition Program Administration (DAPA) approved the batch 2 production of SSM-700K C-Star surface-to-surface missile for the year 2007 to 2010.On 20 May 2010, a South Korean-led investigation group announced that all evidence pointed to a North Korean torpedo being responsible for the sinking of ROKS Cheonan.[27][4] On 23 March 2014, the development of STX Engine SPS-300K surface search radar, which can detect small objects such as submarine periscope, was announced after being tested on ROKS Iksan.The ESM detects electromagnetic waves emitted from the hostile missile and radar, allowing to track, analyze, identify, then warn the main system to automatically activate defensive measures such as Mk 36 SRBOC.[28][29] On 17 February 2020, BRP Conrado Yap encountered the People's Liberation Army Navy Type 056A corvette Liupanshui on its patrol mission.The ship received significant maintenance programs including disassembly and regeneration of diesel and gas turbine engines before the transfer to the Peruvian Navy.