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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - Oboe - Boy - Nan

SC-1 Class Submarine Chaser:

  • Laid down at the New York Navy Yard, Brooklyn, NY
  • Commissioned 19 October 1917 and was assigned to the Second Naval District, operating with the Experimental Unit at New London, Connecticut
  • Sold 24 June 1921 to Joseph G. Hitner of Philadelphia, PA
  • Fate unknown.


  • Displacement 85 t.
  • Length 110'
  • Beam 14' 8.75"
  • Max Draft (fl) 5' 8"
  • Speed 18 kts.
  • Complement 27
  • Armament: One single 3"/23 gun mount, two .30 cal. machine guns, and one depth charge projector "Y Gun"
  • Propulsion: Three Standard 220hp gasoline engines, three shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    SC-21 154k Photo contributed by Laura Hawkins The Subchaser Archives
    SC-19 193k SC-19 with other SC (submarine chaser) boats, at the U.S. Naval Experimental Station, New London, Connecticut, circa 1918. Among the SCs present are: USS SC-21 and USS SC-238
    Photo by Louis Harder, New London
    Naval History and Heritage Command photo NH 2458
    Mike Green
    SC-19 262k View of pier area at naval Experimental Station, New London, Connecticut, circa 1918. Ships present include: USS SC-19, USS SC-238, USS SC-21. The larger ship is probably the revenue cutter Onondaga
    Photo by Louis Harder, New London
    Naval History and Heritage Command photo NH 2462
    SC-19 274k 20 March 1918
    Report on camouflage patterns
    During World War I there were reports filed with the Office of Naval Intelligence of ships in camouflage that visited U.S. ports. Subchasers never had standard patterns, but some commanders took initiative and created designs locally. SC-19 is in a standard Mackay pattern used for lots of other ships and classes. The others, such as SC-21 are individual
    disruptive designs
    National Archives photo
    Aryeh Wetherhorn
    SC-21 394k 15 May 1918
    Report on Camouflaged Ships
    National Archives photo
    SC-21 131k National Archives photo

    Commanding Officers
    01LT Alfred Young Lanphier, USN - USNA Class of 191019 October 1917 - 6 May 1918
    02LTJG Henry Hartley, USN - Awarded the Navy Cross (1927), Navy Distinguished Service Medal (1926) and two Legion of Merits (1943/1944)
    Retired as Rear Admiral
    6 May 1918
    Courtesy Joe Radigan and Wolfgang Hechler

    There is no DANFS history available for SC-21
    Additional Resources and Websites of Interest
    Patrol Craft Sailors Association
    Back To The Main Photo Index Back To the Patrol Craft/Gunboat/Submarine Chaser Index Back to the 110' Submarine Chaser (SC) Photo Index

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    This page created by Joseph M. Radigan and maintained by Tom Bateman
    All pages copyright NavSource Naval History