USS Halcyon (SP-518)

USS Halcyon (SP-518) was a United States Navy patrol vessel in commission from 1917 to 1919. She saw service during World War I and its immediate aftermath. After the conclusion of her naval service, she was in the United States Bureau of Fisheries fleet as the research vessel USFS Halcyon from 1919 to 1927.

USS Halcyon (SP-518)

USS Halcyon (SP-518) was a United States Navy patrol vessel in commission from 1917 to 1919. She saw service during World War I and its immediate aftermath. After the conclusion of her naval service, she was in the United States Bureau of Fisheries fleet as the research vessel USFS Halcyon from 1919 to 1927.