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NavSource Online:
Section Patrol Craft Photo Archive

Halcyon (SP 518)

Patrol Launch:

  • The first Halcyon was built in 1916 by Marine Construction Co., Boothbay Harbor, MA
  • Acquired by the Navy 14 May 1917 and commissioned the same day at Boston, MA
  • Decommissioned 24 June 1919
  • Struck from the Naval Register 31 July 1919 and returned to the Bureau of Fisheries on 5 August 1919
  • Fate unknown.


  • Displacement 65 t.
  • Length 61'
  • Beam 12' 4".
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    DANFS history entry located on the Naval History and Heritage Command website
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