Please report any broken links or trouble you might come across to the Webmaster. Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online: Amphibious Photo Archive

USS LCI(M)-670
USS LCI(L)-670 (1944 - 1945)

International Radio Call Sign:
November - Papa - Sierra - Kilo
Awards, Citations and Campaign Ribbons

Precedence of awards is from left to right
American Campaign Medal - Europe-Africa-Middle East Campaign Medal (1) - World War II Victory Medal

USS LCI(L)-670 was transferred to Thailand, named HTMS Prap (LCI-741)
LCI-351 Class Landing Craft Infantry (Large):
  • Laid down, 21 March 1944, at George Lawley & Sons, Neponset, MA.
  • Launched, 28 March 1944
  • Commissioned USS LCI(L)-670, 4 April 1944
  • Reclassified Landing Craft Infantry (Mortar) LCI(M)-670, 5 May 1945
  • During World War II USS LCI(L)-670 / LCI(M)-670 was assigned to the Europe-Africa-Middle East Theater and participated in the following campaign;

    Europe-Africa-Middle East Campaign
    Campaign and Dates
    Invasion of southern France, 15 August to 16 September 1944
  • Decommissioned, date unknown
  • Struck from the Naval Register in 1946
  • Custody assumed by the State Department, 5 October 1946
  • Transferred by the State Department to Thailand in 1946
  • Commissioned into the Royal Thai Navy as HTMS Prap (LCI-741), date unknown
  • Final Disposition, fate unknown
  • USS LCI(L)-670 received one battle star for World War II service
    Displacement 246 t.(light), 264 t. (landing), 419 t.(loaded)
    Length 158' 5½"
    Beam 23' 3"
    Draft Light 3' 1½" mean, Landing, 2' 8" forward, 4' 10" aft, Loaded, 5' 4" forward, 5' 11" aft
    Speed 16 kts (max.), 14 kts maximum continuous
    LCI(L) Complement 4 Officers, 24 Enlisted
    LCI(M) Complement 4 Officers, 49 Enlisted
    LCI(L) Troop Capacity 6 Officers, 182 Enlisted
    LCI(L) Cargo Capacity 75 tons
    Armor 2" plastic splinter protection on gun turrets, conning tower and pilot house
    Endurance 4,000 miles at 12 kts, loaded, 500 miles at 15 kts; and 110 tons of fuel
    LCI(L) Armament five single 20mm guns, one bow mounted, one each port and starboard forward of wheelhouse, one each port and starboard aft of wheelhouse, on some LCIs two .50 cal machine guns were added
    LCI(M) Armament one single 40mm gun, forward, four 20mm guns, three 4.2mm chemical mortars mounted in three 4ft x 4ft wooden walled 2" x 6" high sand boxes on the well deck with the three tripod mortar tubes in position to fire forward over the bow, No. 2 Troop Compartment (under well deck) converted to a magazine
    Fuel Capacity 130 tons, lube oil 200 gal.
    Propulsion two sets of 4 GM diesels, 4 per shaft, BHP 1,600, twin variable pitch propellers

    Click On Image
    For Full Size Image
    Size Image Description Source
    USS LCI(L)-670
    LCI(L)-581 203k LCIs moored at Bizerte, Tunisia, circa May 1944. From left to right front row:
    USS LCI(L)-586
    USS LCI(L)-589
    USS LCI(L)-583
    USS LCI(L)-581
    USS LCI(L)-951
    USS LCI(L)-582
    LCIs left to right back row:
    Four unidentified LCIs
    USS LCI(L)-671
    USS LCI(L)-670
    USS LCI(L)-669
    USS LCI(L)-672
    USS LCI(L)-528
    Photo by Robert W. Van Keuren CO USS LCI(L)-665
    LCI(L)-591 1451k Members of the 30th Inf., 3rd Div. board LCI(L)s, 24 July 1944, near Naples, Italy, for a practice landing in anticipation of the coming Invasion of southern France in August of 1944.
    Recognizable ships are from right to left:
    USS LCI(L)-591,
    USS LCI(L)-671,
    USS LCI(L)-673,
    USS LCI(L)-672,
    USS LCI(L)-670,
    USS LCI(L)-594,
    USS LCI(L)-595,
    USS LCI(L)-593,
    USS LCI(L)-592,
    USS LCI(L)-587 and
    USS LST-141.
    US National Archives photo # III-SC-192675, Box 222, a US Army Signal Corps photo by Cuca 163rd Signal Photo Company, US Army Signal Corps.
    Dave Kerr
    LCI(L)-581 1162k 3rd Inf Div. troops disembark from USS LCI(L)-670, USS LCI(L)-672, USS LCI(L)-669, USS LCI(L)-673, and two unidentifiable LCIs in the distance, during practice landing operations in the Formta area of Italy, 31 July 1944, prior to the invasion of southern France in August 1944.
    US National Archives photo # III-SC 192677, Box 222, a US Army Signal Corps. photo now in the collection of the US National Archives.
    Dave Kerr
    HTMS Prap (LCI-741)
    LCI(L)-670 33k Ex-LCI(M)-670 in Royal Thai naval service as HTMS Prap (LCI-741) underway, circa 1950, location unknown. Robert Hurst
    LCI(L)-670 214k Decommissioned Royal Thai Navy LCIs Prap (LCI-741) (inboard) and HTMS Sattakut (LCI-742) [ex-LCI(G)-739)] (outboard) moored pierside at the Royal Thai Navy Dock Yard Phachunlachomklao, 12 January 2008. Photo by Nye Nava

    The history for LCI(L)-670 / LCI(M)-670 is from USS LCI "Landing Craft Infantry", Vol. II. Paducah, Kentucky: Turner Publishing Company, © 1995. (ISBN 1-56311-262-0)
    Crew Contact And Reunion Information
    U.S. Navy Memorial Foundation - Navy Log

    Additional Resources and Web Sites of Interest
    USS Landing Craft Infantry National Association
    Sinking of ex-USN LSM-333 and ex-US LCI(M)-670 by Thai Navy YouTube video
    Back To The Navsource Photo Archives Main Page Back To The Amphibious Ship Type Index Back To The Landing Craft Infantry (LCI) Photo Index
    Comments, Suggestions, E-mail Webmaster.
    This page is created by David W. Almond and maintained by Gary P. Priolo
    All pages copyright NavSource Naval History
    Last Updated 30 January 2015