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:
Section Patrol Craft Photo Archive

Halcyon (SP 518)

Patrol Launch:

  • The first Halcyon was built in 1916 by Townsend Marine Railway and Construction Company, Boothbay Harbor, ME for the Bureau of Fisheries
  • Launched 30 November 1916
  • Competed and accepted 3 May 1917
  • Acquired by the Navy 14 May 1917 and commissioned USS Halcyon (SP 518) the same day at Boston, MA
  • Decommissioned 24 June 1919
  • Struck from the Naval Register 31 July 1919
  • Returned to the Bureau of Fisheries on 5 August 1919
  • Sold in November 1927
  • Registered in 1931 to B. A. Guinan of New York, NY as the miscellaneous vessel Halcyon
  • Fate unknown.


  • Displacement 65 t.
  • Length 61'
  • Beam 12' 4".
    Click on thumbnail
    for full size image
    Size Image Description Source
    No image of Halcyon (SP 518) is available at this time

    View the Halcyon (SP 518)
    DANFS history entry located on the Naval History and Heritage Command website
    Back to the Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back to the Section Patrol Craft (SP) Photo Index

    Comments, Suggestions, E-mail Webmaster

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