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NavSource Online: Amphibious Photo Archive


Contributed by Mike Smolinski

USS Mahnomen (LST-912)
ex
USS LST-912 (1944 - 1955)


International Radio Call Sign:
November - Victor - Pap - Quebec
NVPQ
Awards, Citations and Campaign Ribbons




Precedence of awards is from top to bottom, left to right
Top Row - Combat Action Ribbon (retroactive, 8 January 1945) - China Service Medal (extended) - American Campaign Medal
Second Row - Asiatic-Pacific Campaign Medal (4) - World War II Victory Medal - Navy Occupation Service Medal (with Asia clasp)
Third Row - National Defense Service Medal (2) - Vietnam Service Medal (2) - Philippines Presidential Unit Citation
Fourth Row - Philippines Liberation Medal (2) - Republic of Vietnam Gallantry Cross Unit Citation - Republic of Vietnam Campaign Medal

Individual Awards

Purple Heart (4-KIA, 4-WIA - 8 January 1945)

LST-542 Class Tank Landing Ship:
  • Laid down, 5 February 1944, at the Bethlehem-Hingham Shipyard in Hingham, MA.
  • Launched, 22 April 1944
  • Commissioned, USS LST-912, 21 May 1944, Ltjg. L. R. White, USN in command
  • During World War II USS LST-912 was assigned to the Asiatic-Pacific Theater;
    LST Flotilla Eight, CAPT. E. Watts, USN;
    LST Group Twenty-Three, CDR. T.C. Linthicum, USN;
    LST Division Forty-Five and participated in the following campaigns:
    Asiatic-Pacific Campaigns
    Campaign and Dates Campaign and Dates
    Western New Guinea operations
    Morotai landings, 15 September 1944
    Luzon operations
    Lingayen Gulf landing, 4 to 17 January 1945
    Leyte operations
    Leyte landings, 5 to 18 November 1944
    Consolidation and capture of the Southern Philippines
    Palawan Island landings, 28 February to 2 March and 6 to 7 March1945
    Mindanao Island landings, 17 to 23 April 1945

  • Following World War II USS LST-912 was assigned to Occupation service in the Far East and in Europe for the following periods:

    Navy Occupation Service Medal
    (Asia) 23 September to 24 October 1945
    (Asia) 18 November to 8 December 1945
    (Asia) 18 December 1945 to 1 January 1946
    (Europe) 23 September 1948 to 22 January 1949

  • Named USS Mahnomen County (LST-912), 1 July 1955
  • Decommissioned, 25 August 1955
  • Recommissioned, 27 March 1963
  • During the Vietnam War USS Mahnomen County (LST-912) participated in the following campaigns:
    Vietnam War Campaigns
    Campaign and Dates Campaign and Dates
    Vietnam Counteroffensive
    27 May to 7 June 1966
    Vietnam Counteroffensive - Phase II
    3 July to 14 July 1966
    26 to 29 September1966
    11 to 21 October 1966
    22 to 24 October 1966
    15 to 25 November 1966
    6 to 15 December 1966

  • USS Mahnomen County (LST-912) ran aground at Chu Lai, South Vietnam during a typhoon on 30 December 1966. After four weeks of unsuccessful attempts to re-float her she was stripped for salvageable materials
  • Final Disposition, demolished by personnel of the Navy Support Detachment, Chu Lai
  • Struck from the Naval Register, 31 July 1967
  • USS Mahnomen County (LST-912) earned four battle stars for World War II service and two campaign stars for Vietnam service
    Specifications: (as reported by Office of Naval Intelligence-1945)
    Displacement 1,625 t.(lt), 4,080 t.(fl) (sea-going draft w/1675 ton load)
    Length 328' o.a.
    Beam 50'
    Draft
    (light) - 2' 4" fwd, 7' 6" aft
    (sea-going) 8' 3" fwd, 14' 1" aft
    (landing) 3' 11" fwd, 9' 10" aft (landing w/500 ton load)
    Speed 12 kts. (maximum)
    Endurance 24,000 miles @ 9kts. while displacing 3960 tons
    Complement
    (2-boat davits) 7 officers, 104 enlisted
    (6-boat davits) 9 officers, 120 enlisted
    Troop Accommodations
    (2-boat davits) 16 officers, 147 enlisted
    (6-boat davits) 14 officers, 131 enlisted
    Boats 2 or 6 LCVP
    Cargo Capacity (varied with mission - payloads between 1600 and 1900 tons)
    Typical loads
    One Landing Craft Tank (LCT), tanks, wheeled and tracked vehicles, artillery, construction equipment and military supplies. A ramp or elevator forward allowed vehicles access to tank deck from main deck
    Additional capacity included sectional pontoons carried on each side of vessel amidships, to either build Rhino Barges or use as causeways. Married to the bow ramp, the causeways would enabled payloads to be delivered ashore from deeper water or where a beachhead would not allow the vessel to be grounded forward after ballasting
    Armament (varied with availability when each vessel was outfitted. Retro-fitting was accomplished throughout WWII. The ultimate armament design for United States vessels was
    2 - Twin 40MM gun mounts w/Mk. 51 directors
    4 - Single 40MM gun mounts
    12 single 20MM gun mounts
    Propulsion two General Motors 12-567, 900hp diesel engines, two shafts, twin rudders

    Click On Image
    For Full Size Image
    Size Image Description Contributed
    By
    LST-912 Mahnomen County 56k USS LST-912 underway, date and place unknown. LST 912 web site
    LST-912 Mahnomen County 114k USS LST-912 beached while discharging vehicles, date and place unknown.
    US Navy photo from "All Hands" magazine, December 1947
    LST 912 web site
    LST-912 Mahnomen County 57k USS Mahnomen County (LST-912) impaled on rocks off Chu Lai, South Vietnam. Salvage efforts being unsuccessful her cargo was removed, she was stripped of salvageable materials and demolished by personnel of the US Navy Support Detachment, Chu Lai, circa January 1967.
    US Naval Instituted photo.
    Photos of the hulk of ex-USS Mahnomen County (LST-912)
    Robert Langill

    USS LST-912 / USS Mahnomen County (LST-912)
    DANFS history entry located at the US Naval History and Heritage Command
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log

    Additional Resources and Web Sites of Interest
    The USS LST Ship Memorial
    Naval Landing Ship Tank U.S.S. LST 912
    Mobile Riverine Force Association
    LST Home Port
    State LST Chapters
    United States LST Association
    Back To The Navsource Photo Archives Main Page Back To The Amphibious Ship Type Index Back To The Tank Landing Ship (LST) Photo Index
    Comments, Suggestions, E-mail Webmaster.
    This page is created and maintained by Gary P. Priolo
    All pages copyright NavSource Naval History
    Last Updated 22 March 2013