Landing Ship Medium (LSM) were amphibious assault ships of the United States Navy in World War II. Of a size between that of Landing Ships Tank (LST) and Landing Craft Infantry (LCI), 558 LSMs were built for the USN between 1944 and 1945. The majority of vessels built on this frame were regular transports, while several dozen were converted during construction to specialized roles. Most LSMs were scrapped during the Cold War, but several were sold by the United States Department of Defense to foreign nations or private shipping companies.
USS LSM-60 was a World War II era landing ship, medium (LSM) amphibious assault ship of the United States Navy. It was notable for being used as the float to suspend a fission bomb underwater during the Operation Crossroads BAKER test, becoming the first naval vessel to deploy a nuclear weapon.
USS Oceanside (LSM-175) was one of 558 LSM-1-class landing ship medium built for the United States Navy during World War II. Named for the town of Oceanside, California, she was the only U.S. Naval vessel to bear the name.
USS LSM-135 was a LSM-1-class landing ship medium built for the United States Navy during World War II. Like many of her class, she was not named and is properly referred to by her hull designation.
USS Clarion River was an LSM(R)-401-class medium-type landing ship (LSM) built for the United States Navy during World War II. Named for the Clarion River in west central Pennsylvania, she was the only US Naval vessel to bear the name.
USS LSM-149 was a LSM-1-class landing ship medium built for the U.S. Navy in World War II. Like most ships of her class, she was not named and known only by her designation.
USS LSM(R)-190 was a United States Navy LSM(R)-188-class Landing Ship Medium (Rocket). She was built at Charleston Navy Yard, Charleston, South Carolina and was commissioned on 21 November 1944. LSM(R)-190 took part in the Battle of Okinawa from 7 April–4 May 1945. She was hit and sunk by a Japanese suicide plane on 4 May 1945 while on the radar picket line. She later received a Navy Unit Commendation for her service off Okinawa. Her commanding officer was Lt. Richard H. Saunders, USNR.
LSM(R)-191 was a World War II LSM(R)-188-class Landing Ship Medium (Rocket) fitted for firing a rocket barrage.
LSM(R)-193 was an American Landing Ship Medium (Rocket) built in 1944, which provided naval gunfire and rocket support for US and Allied amphibious landings in World War II. It was laid down at Charleston Navy Yard and commissioned on 21 November 1944. It participated in the Battle of Okinawa as well as the run-up to the battle
USS LSM-45 was a LSM-1-class medium landing ship built for the United States Navy during World War II. The ship also served as Ypoploiarchos Grigoropoulos (L161) in the Hellenic Navy from 1958 to 1993. She was the last known surviving LSM in its original configuration. Her last location before scrapping was Marine Corps Base Camp Lejeune in North Carolina. LSM-45 was donated to the Museum of the Marine by the now defunct Amphibious Ship Museum under the understanding that it would be put on display at the museum, and was towed to North Carolina in 2004 from Omaha, Nebraska. The museum decided in 2007 that the ship would not be a part of the museum and tried looking for another home for the ship. In 2009, there were reports that the Museum was considering scrapping or sinking the ship as an artificial reef, and she was scrapped sometime between 2010 and 2014.
USS LSM(R)-194 was a LSM(R)-188-class Landing Ship Medium (Rocket) of the United States Navy during World War II, which took part in the Battle of Okinawa. LSM(R)-194 was laid down at the Charleston Navy Yard, Charleston, South Carolina on 21 November 1944. The ship was under the command of Lt.jg Allen M. Hirshberg, USNR. It sank on 4 May 1945 when it was hit by a Japanese suicide plane while on radar picket duty.
LSM(R)-196 was a US amphibious assault ship, laid down at Charleston Navy Yard. It was commissioned on 12 December 1944, Lt. Dennis D. O'Callaghan, USNR, in command.
LSM(R)-195 was laid down at Charleston Navy Yard. The ship was commissioned on 21 November 1944, Lt.(j.g.) William E. Woodson, USNR, in command
USS LSM-217 was a LSM-1-class landing ship medium built for the United States Navy during World War II. Like many of her class, she was not named and is properly referred to by her hull designation.
USS LSM-297 was a LSM-1-class medium landing ship built for the United States Navy during World War II.
USS LSM-105 was a LSM-1-class landing ship medium of the United States Navy, commissioned at Brown Shipyards in Houston, Texas, on 15 November 1944. During the remainder of World War II, it served in the Pacific.
USS LSM-20 was a LSM-1-class landing ship medium of the United States Navy, commissioned at Brown Shipyards in Houston, Texas, on 16 June 1944. During WWII, she operated in the Pacific. On 5 December 1944, the vessel sunk after she was hit by a Japanese kamikaze in the Surigao Strait in the Philippines. Five sailors were killed and another nine were wounded.
USS LSM-46 was a LSM-1-class landing ship medium in the United States Navy during World War II.
United States
