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Landing Ship Medium

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Title: Landing Ship Medium  
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Subject: Type 271 landing craft, Type 079 landing ship medium, USS Raritan (LSM-540), Australian landing ship medium Brudenell White (AV 1354), USS LSM(R)-189
Collection: Lists of Ships of the United States
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Landing Ship Medium

Landing Ship Medium were amphibious assault ships of the United States Navy in the World War II.

Of comparable size to Landing Ship, Tank and the Landing Craft, Infantry, there were 558 LSM (Landing Ship, Medium) made for the USN between 1944 and 1945. The majority of vessels built on this versatile frame were regular transports however there were several dozen that were converted during construction for specialized roles. Most vessels of this type were scrapped during the Cold War, but several were sold by the United States Department of Defense to foreign nations or private shipping companies.

Only one LSM, USS LSM-45 is known to still exist in its original configuration. It is in storage at Marine Station Camp Lejeune in Jacksonville, NC. It was slated to become the centerpiece of the Museum of the Marine, but due to changed plans, is now in danger of being scrapped or sunk as an artificial reef.

LSM-1-class Landing Ship Medium (Transport)

USS LSM-152, of the LSM-1 Class, while underway off Charleston Navy Yard in 1944.
USS LSM-152 underway off Charleston Navy Yard in 1944.
General characteristics
Class & 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:
Troops: 54 troops
Complement: 4 officers, 54 enlisted
Armament:

List of LSM-1-class ships

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

USS LSM(R)-194, of the LSM(R)-188 Class, passing under the Cooper River Bridge, Charleston, SC, 2 December 1944.
USS LSM(R)-194 passing under the Cooper River Bridge, Charleston, SC, 2 December 1944
General characteristics
Class & type: LSM(R)-188 class Landing Ship Medium (Rocket)
Displacement:
  • LSM(R)-188 to LSM(R)-195 :
  • 968 long tons (984 t) loaded
  • LSM(R)-196 to LSM(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, 2 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)-401-class Landing Ship Medium (Rocket)

USS LSM(R)-409, of the LSM(R)-401 class, underway off San Diego, California on 25 February 1954
USS LSM(R)-409 underway off San Diego, California on 25 February 1954
General characteristics
Class & 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, 2 screws
Speed: 13 knots (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:

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

USS Pee Dee River (LSM(R)-517), of the LSM(R)-501 class, underway in 1954
USS Pee Dee River (LSM(R)-517) underway in 1954
General characteristics
Class & 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, 2 screws
Speed: 13 knots (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:

Gypsy-class Salvage Lifting Vessels

USS Gypsy (ARS(D)-1), lead ship of the Gypsy class, underway at Houston, TX, in 1946.
USS Gypsy (ARS(D)-1) underway at Houston, Texas, in 1946
General characteristics
Class & 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, 2 screws
Speed: 13 knots (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

See also

References

  • LSM-LSMR: WWII Amphibious Forces, Turner Publishing Co.; Paducah, Kentucky, ISBN 1-56311-140-3
  • Jane's Fighting Ships, 1980-81

External links

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