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NavSource Online: Amphibious Photo Archive

USS Big Horn River (LSMR-402)
USS LSM(R)-402 (1945 - 1955)

Awards, Citations and Campaign Ribbons

Precedence of awards is from left to right
Top Row - American Campaign Medal - Asiatic-Pacific Campaign Medal - World War II Victory Medal

LSM(R)-401 Class Landing Ship Medium (Rocket):
  • Laid down, 2 January 1945, at US Navy Yard, Charleston, S.C.
  • Launched, 22 January 1945
  • Commissioned USS LSM(R)-402, 16 April 1945, LT. W. B. McCown, Jr., USNR, in command
  • During World War II USS LSM(R)-402 was assigned to the Asiatic-Pacific Theater
  • Decommissioned, 16 January 1948, at San Diego, CA.
  • Laid up in the Pacific Reserve Fleet, San Diego Group
  • Named USS Big Horn River (LSMR-402), 1 October 1955
  • Struck from the Naval Register, 1 October 1958
  • Final Disposition, sold in 1960, to Pacific Towboat & Salvage Co., Long Beach, CA., converted to a barge, fate unknown
    light 758 t.
    attack 994 t.
    fully loaded 1,084 t.
    Length 203' 6" o.a.
    Beam 34' 6"
    Draft 7' 2' (lim)
    Speed 12.6 kts.
    Officers 5
    Enlisted 133
    one single 5"/38 dual purpose gun mount
    two twin 40mm gun mounts
    four twin 20mm gun mounts (after Korean War)
    ten twin tube continuous loading 5" spin stabilizer rocket launchers (two removed after Korean War)
    four 4".2 mortars (removed after Korean War)
    two .50 cal machine guns on the forecastle
    two .30 cal machine guns on the bridge wings.
    Armor 10-lb. STS on conning station, pilot-house, radio room, radar plot, and rocket control, 10-lb. ASPP around 40 and 20mm gun mounts and directors
    Fuel Capacity
    Diesel 1,225 Bbls
    two General Motors 16-287A (non-reversing with airflex clutch) Diesel engines, direct drive with 1,440 BHP each @ 720rpm
    Ship's Service Generators
    four Diesel-drive 100Kw 450V A.C.
    two Diesel-drive 20Kw 120V D.C.
    twin screws 2,800 shp

    Click On Image
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    Size Image Description Contributed
    LSM(R)-402 162k USS LSM(R)-402 underway, date and location unknown. Photo from the ship's Christmas card. Photo courtesy Don Schwermer USS LSM(R)-402 and Jim Tusing LSM-372,
    Editor "Alligator Alley" The Newsletter
    of the USS LSM - LSMR Association
    LSM(R)-402 63k USS LSM(R)-402 underway, date and location unknown. Her launchers were capable of tossing 400 rounds a minute ashore. Joe Radigan MACM USN Ret. and USS LSM / LSMR Association
    LSM(R)-402 87k USS LSM(R)-402 underway, date and location unknown.
    Photo by Ted Stone.
    USS LSM / LSMR Association

    USS LSM(R)-402 / USS Big Horn River (LSMR-402)
    Dictionary of American Naval Fighting Ships (DANFS)
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log
    USS LSM-LSMR Association
    Back To The Navsource Photo Archives Main Page Back To The Amphibious Ship Type Index Back To The Landing Ship Medium (Rocket) (LSMR) Photo Index
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    This page is created and maintained by Gary P. Priolo
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    Last Updated 20 June 2014