After
Chincoteague was transferred to South Vietnam, she was commissioned in the
Republic of Vietnam Navy as the
frigate '
RVNS Lý Thường Kiệt
. (HQ-16)' She was among seven
Barnegat- and
Casco-class ships transferred to South Vietnam in 1971 and 1972. Known in the Republic of Vietnam Navy as the s, they were the largest warships in the South Vietnamese inventory, and their
5-inch (127-millimeter) guns were South Vietnam's largest naval guns.
Service history Lý Thường Kiệt and her sisters fought alongside U.S. Navy ships during the final years of the Vietnam War, patrolling the South Vietnamese coast and providing gunfire support to South Vietnamese forces ashore.
The Battle of the Paracel Islands Possession of the
Paracel Islands had long been disputed between South Vietnam and the
People's Republic of China. With South Vietnamese forces stationed on the islands drawing down because they were needed on the Vietnamese mainland in the war with
North Vietnam, China took advantage of the situation to send forces to seize the islands. On 16 January 1974,
Lý Thường Kiệt spotted Chinese forces ashore on the islands. She and the Chinese ordered one another to withdraw, and neither side did. Reinforcements arrived for both sides over the next three days, including
Lý Thường Kiệt sister ship , which appeared on the scene on 18 January 1974 with the commander of the Republic of Vietnam Navy,
Captain Hà Văn Ngạc, aboard. By the morning of 19 January 1974, the Chinese had four
corvettes and two
submarine chasers at the Paracels, while the South Vietnamese had
Lý Thường Kiệt,
Trần Bình Trọng, the frigate , and the
corvette on the scene.
Trần Bình Trọng landed South Vietnamese troops on
Duncan Island (or
Quang Hoa in Vietnamese), and they were driven off by Chinese gunfire. The South Vietnamese ships opened fire on the Chinese ships at 10:24 hours, and the 40-minute
Battle of the Paracel Islands ensued.
Nhật Tảo was sunk, and the other three South Vietnamese ships all suffered damage,
Lý Thường Kiệt being one of the most heavily damaged ships; Chinese losses were more difficult to ascertain, but certainly most or all of the Chinese ships suffered damage and one or two may have sunk. Not equipped or trained for open-ocean combat and outgunned, the South Vietnamese ships were forced to withdraw. The Chinese seized the islands the next day, and they have remained under the control of the People's Republic of China ever since.
Flight to the Philippines When South Vietnam collapsed at the end of the Vietnam War in late April 1975,
Lý Thường Kiệt became a ship without a country. She fled to Subic Bay in the Philippines, packed with South Vietnamese refugees. On 22 and 23 May 1975, a U.S. Coast Guard team inspected
Lý Thường Kiệt and five of her sister ships, which also had fled to the Philippines in April 1975. One of the inspectors noted: "These vessels brought in several hundred refugees and are generally rat-infested. They are in a filthy, deplorable condition. Below decks generally would compare with a garbage scow." After
Lý Thường Kiệt had been cleaned and repaired, the United States formally transferred her to the Philippines on 5 April 1976. ==Philippine Navy service==