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(Top) 1 LSM-1-class Landing Ship Medium (Transport) 1.1 List of LSM-1-class ships 2 LSM(R)-188-class Landing Ship Medium (Rocket) 3 LSM(R)-401-class Landing Ship Medium (Rocket) 4 LSM(R)-501-class Landing Ship Medium (Rocket) 5 Gypsy-class Salvage Lifting Vessels 6 Production 7 Legacy 8 See also 9 References 10 External links

Landing Ship Medium

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ALanding Ship Medium (LSM) was an amphibious assault ship of the United States NavyinWorld War II. Of a size between that of Landing Ships Tank and Landing Craft Infantry, 558 LSMs were built for the USN between 1944 and 1945. Most 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.

LSM-1-class Landing Ship Medium (Transport)

General characteristics
USS LSM-175 underway off Charleston Navy Yard in 1944
Class and type	LSM-1 class Landing Ship Medium
Displacement	530 long tons (539 t) empty 900 long tons (914 t) loaded
Length	203 ft 6 in (62.03 m)
Beam	34 ft (10 m)
Draft	Landing : 3 ft 6 in (1.07 m) forward 7 ft 8 in (2.34 m) aft Full load : 6 ft 4 in (1.93 m) forward 8 ft 3 in (2.51 m) aft
Propulsion	Fairbanks-Morse or GM Cleveland diesel engines, 2,800 shp (2,088 kW), direct drive, 2 screws
Speed	13.3 knots (24.6 km/h; 15.3 mph)
Range	5,000 nmi (9,300 km) at 7 kn (13 km/h; 8.1 mph)
Capacity	5 × medium tanks or 3 × heavy tanks (150 tons max. payload, beaching) or 6 × LVTs or 9 × DUKWs
Troops	54 troops
Complement	4 officers, 54 enlisted
Armament	Up to 2 × 40 mm AA guns 4-6 × 20 mm AA guns (typically 4 if Bofors shipped)

List of LSM-1-class ships

In total, 558 LSM ships were launched. Some notable examples include:

Name	Year launched	Fate	Short summary
USS LSM-17	May 7, 1944	Sold on November 15, 1974
USS LSM-19	May 14, 1944	Unknown
USS LSM-20	May 14, 1944	Sank on December 5, 1944
USS LSM-45	June 30, 1944	Scrapped after 1998
USS LSM-46	June 30, 1944	Sold on October 23, 1948
USS LSM-56	July 21, 1944	Sold on October 23, 1948
USS LSM-60	July 29, 1944	Scuttled on July 25, 1946
USS LSM-105	October 21, 1944	Sold on December 10, 1958
USS LSM-110	October 28, 1944	Scrapped on June 9, 1976
USS LSM-115	November 11, 1944	Sold on December 29, 1946
USS LSM-125	November 25, 1944	Scrapped on October 4, 1977
USS LSM-135	April 23, 1944	Sank on May 25, 1945
USS LSM-149	May 27, 1944	Grounded on December 5, 1944
USS LSM-157	—	Sank in September 1958	Transferred to Nationalist China in 1949, recommissioned as Mei Le, sunk by Red Chinese artillery 9/1958
USS Kodiak (LSM-161)	June 27, 1944	Scrapped on August 14, 1972
USS Oceanside (LSM-175)	August 3, 1944	Scrapped in 1989
USS LSM-216	—	Scrapped in 1960
USS LSM-217	—	Unknown
USS LSM-236	July 4, 1944	Scrapped in 1972
USS LSM-247	—	Sold in February 1947
USS LSM-256	—	Sank on June 16, 1969	Transferred to Nationalist China in 1949, recommisioned as Mei Hua, sunk in a collision with M.V. Ta Tung 16/6/69
USS LSM-275	September 11, 1944	Scrapped in 1976	Later renamed and reclassified USS Portunus (ARC-1)
USS LSM-297	October 30, 1944	Scrapped in 1958
USS LSM-315	—	Unknown
USS LSM-319	—	Sank in 1971
USS LSM-333	October 13, 1944	Scuttled on September 17, 2006
USS LSM-335	—	—	Later USNS LSM-335 (T-AG-335) Assigned Ryukyuan shuttle.^[1]
USS LSM-338	December 5, 1944	Scrapped
USS LSM-355	December 2, 1944	Unknown
USS LSM-380	January 13, 1945	Waiting for preservation
USS LSM-397	January 6, 1945	Sold in November 1958
USS Hunting (LSM-398)	January 6, 1945	Scrapped after 1983	Later reclassified (E-AG-398)
USS LSM-462	February 3, 1945	Unknown
USS LSM-469	February 17, 1945	Scuttled on February 1, 2003
USS LSM-471	February 17, 1945	Unknown
USS LSM-477	—	Sank in 1971
USS LSM-478	March 3, 1945	Unknown
USS Raritan (LSM-540)	August 1, 1945	Unknown
USS LSM-547	—	Abandoned by 1972

LSM(R)-188-class Landing Ship Medium (Rocket)

General characteristics
USS LSM(R)-194 passing under the Cooper River Bridge, Charleston, SC, 2 December 1944
Class and type	LSM(R)-188-class Landing Ship Medium (Rocket)
Displacement	LSM(R)-188toLSM(R)-195 : 968 long tons (984 t) loaded LSM(R)-196toLSM(R)-199 : 1,008 long tons (1,024 t) loaded
Length	203 ft 6 in (62.03 m)
Beam	34 ft (10 m)
Draft	5 ft 6 in (1.68 m) forward 5 ft 9 in (1.75 m) aft
Propulsion	GM Cleveland diesel engines, 2,800 shp (2,088 kW), direct drive, two screws
Speed	13.2 knots (24.4 km/h; 15.2 mph)
Range	5,000 nmi (9,300 km) at 7 kn (13 km/h; 8.1 mph)
Complement	5 officers, 76 enlisted
Armament	LSM(R)-188toLSM(R)-195 : 1 × 5"/38 caliber gun 2 × 40 mm AA guns 3 × 20 mm AA guns 85 × Mk. 51 automatic rocket launchers LSM(R)-196toLSM(R)-199 : 1 × 5"/38 caliber gun 2 × 40 mm AA guns 75 × 4-rail Mk. 36 rocket launchers 30 × 6-rail Mk. 30 rocket launchers 85 × Mk. 51 automatic rocket launchers

LSM(R)-401-class Landing Ship Medium (Rocket)

General characteristics

Class and type	LSM-401(R)-class Landing Ship Medium (Rocket)
Displacement	1,175 long tons (1,194 t) loaded
Length	203 ft 6 in (62.03 m)
Beam	34 ft (10 m)
Draft	7 ft 9 in (2.36 m)
Propulsion	GM Cleveland diesel engines, 2,800 shp (2,088 kW), direct drive, two screws
Speed	13knots (24 km/h; 15 mph)
Range	5,000 nmi (9,300 km) at 7 kn (13 km/h; 8.1 mph)
Complement	6 officers, 137 enlisted
Armament	1 × 5"/38 caliber guns 2 × 40 mm AA guns 4 × 20 mm AA guns 4 × 4.2 in (110 mm) mortars 8-10 × continuous loading 5-inch (130 mm) Ship-to-Shore rocket launchers

USS Big Black River (LSM(R)-401), later reclassified (LFR-401)
USS Big Horn River (LSM(R)-402)
USS Blackstone River (LSM(R)-403)
USS Black Warrior River (LSM(R)-404), later reclassified (LFR-404)
USS Broadkill River (LSM(R)-405), later reclassified (LFR-405)
USS Canadian River (LSM(R)-406)
USS Chariton River (LSM(R)-407)
USS Charles River (LSM(R)-408)
USS Clarion River (LSM(R)-409), later reclassified (LFR-409)
USS Clark Fork River (LSM(R)-410)
USS Cumberland River (LSM(R)-411)
USS Desplaines River (LSM(R)-412), later reclassified (LFR-412)

LSM(R)-501-class Landing Ship Medium (Rocket)

General characteristics
USS Pee Dee River (LSM(R)-517) underway in 1954
Class and type	LSM-501(R)-class Landing Ship Medium (Rocket)
Displacement	1,175 long tons (1,194 t) loaded
Length	203 ft 6 in (62.03 m)
Beam	34 ft 6 in (10.52 m)
Draft	7 ft 9 in (2.36 m)
Propulsion	GM Cleveland diesel engines, 2,800 shp (2,088 kW), direct drive, two screws
Speed	13knots (24 km/h; 15 mph)
Range	5,000 nmi (9,300 km) at 7 kn (13 km/h; 8.1 mph)
Complement	6 officers, 137 enlisted
Armament	1 × 5"/38 caliber gun 4 × 40 mm AA guns 8 × 20 mm AA guns 4 × 4.2 in (110 mm) mortars 20 × continuous loading 5-inch (130 mm) Ship-to-shore rocket launchers

USS Elk River (LSM(R)-501), later reclassified (IX-501)
USS Escalanteo River (LSM(R)-502)
USS Flambeau River (LSM(R)-503)
USS Gila River (LSM(R)-504)
USS Grand River (LSM(R)-505)
USS Green River (LSM(R)-506)
USS Greenbrier River (LSM(R)-507)
USS Gunnison River (LSM(R)-508), later reclassified and renamed USS Targeteer (YV-3)
USS Holston River (LSM(R)-509)
USS James River (LSM(R)-510)
USS John Day River (LSM(R)-511)
USS Lamiolle River (LSM(R)-512), later reclassified (LFR-512)
USS Laramie River (LSM(R)-513), later reclassified (LFR-513)
USS Maurice River (LSM(R)-514)
USS Owyhee River (LSM(R)-515), later reclassified (LFR-515)
USS Pearl River (LSM(R)-516)
USS Pee Dee River (LSM(R)-517)
USS Pit River (LSM(R)-518)
USS Powder River (LSM(R)-519)
USS Raccoon River (LSM(R)-520)
USS Rainy River (LSM(R)-521)
USS Red River (LSM(R)-522), later reclassified (LFR-522)
USS Republican River (LSM(R)-523)
USS Saint Croix River (LSM(R)-524)
USS St. Francis River (LSM(R)-525), later reclassified (LFR-525)
USS St. Johns River (LSM(R)-526)
USS St. Joseph's River (LSM(R)-527)
USS St. Mary's River (LSM(R)-528)
USS St. Regis River (LSM(R)-529)
USS Salmon Falls River (LSM(R)-530)
USS Smoky Hill River (LSM(R)-531), later reclassified (LFR-531)
USS Smyrna River (LSM(R)-532)
USS Snake River (LSM(R)-533)
USS Thames River (LSM(R)-534)
USS Trinity River (LSM(R)-535)
USS White River (LSM(R)-536), later reclassified (LFR-536)

Gypsy-class Salvage Lifting Vessels

General characteristics
USS Gypsy (ARS(D)-1) underway at Houston, Texas, in 1946
Class and type	Gypsy-class Salvage Lifting Vessels
Displacement	816 long tons (829 t)
Length	224 ft 9 in (68.50 m)
Beam	34 ft 10 in (10.62 m)
Draft	8 ft 4 in (2.54 m)
Propulsion	Fairbanks-Morse diesel engines, 1,440 shp (1,074 kW), direct drive, two screws
Speed	13knots (24 km/h; 15 mph)
Range	4,900 nmi (9,100 km) at 12 kn (22 km/h; 14 mph)
Complement	65 officers and enlisted
Armament	2 × 20 mm AA guns

USS Gypsy (ARS(D)-1), authorized as LSM-549
USS Mender (ARS(D)-2), authorized as LSM-550
USS Salvager (ARS(D)-3), authorized as LSM-551, later reclassified to YMLC-3
USS Windlass (ARS(D)-4), authorized as LSM-552, later reclassified to YMLC-4

Production

Dates are launch dates.^[2]

Brown Shipbuilding: Houston, TX: 254 (May 1944 - Apr 1946)
- purpose-built yard for the war effort
Charleston Navy Yard, North Charleston, SC: 121 (May 1944 - Nov 1945)
- traditional military yard
Dravo Corporation, Wilmington, DE: 65 (Apr 1944 - May 1945)
- purpose-built yard for the war effort
Pullman Company, Chicago, IL: 44 (May 1944 - May 1945)
- traditional rail car manufacturer
Federal Shipbuilding and Drydock Company, Newark, NJ: 42 (May 1944 - Feb 1945)
- traditional civil and military yard
Western Pipe and Steel, San Pedro, CA: 32 (Aug 1944 - Mar 1945)
- traditional civil yard

Delivery:^[2]

Q2 1944: 74
Q3 1944: 129
Q4 1944: 132
Q1 1945: 111
Q2 1945: 58
Q3 1945: 30
Q4 1945: 15
1946: 9

Legacy

One LSM, USS LSM-45, survived in its original configuration until around 2010. It was in storage at Marine Station Camp LejeuneinJacksonville, North Carolina. It was slated to become the centerpiece of the Museum of the Marine, but due to changed plans, was scrapped between 2010 and 2014.^{[citation needed]}

References

^ "Meet the Fleet – USNS LSM-335". Sealift Magazine. Vol. 14, no. 8. Washington, D.C.: Military Sea Transportation Service. August 1964. p. 24. Retrieved 29 December 2020.

^ ^a ^b "Landing Ships, Medium - LSM, LSM(R), LSV". Shipbuilding History. 6 January 2018.

LSM-LSMR: WWII Amphibious Forces, Turner Publishing Co.; Paducah, Kentucky, ISBN 1-56311-140-3
Jane's Fighting Ships, 1980–81
US Navy, ONI 226, Allied Landing Craft and Ships, April 1944

External links

USS LSM/LSMR Association
NavSource Photo Archives
Landing Ships ibiblio.org
My Life Aboard the LSM-319 by Eugene Carey
The Navy's Smallest Aircraft Carrier, July 1958, Popular Mechanics small article on conversion of LSM-445 to a target drone launching vessel

v t e Naval ships and warships in 19th and 20th centuries
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Transport	Amphibious transport dock Amphibious warfare ship Attack transport Dock landing ship Landing craft Landing craft carrier Landing Craft Support Landing Ship Heavy Landing ship, infantry Landing Ship Logistics Landing Ship Medium Landing Ship, Tank Landing Ship Vehicle Troopship
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Related	Ship types Sailing vessels

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