USS YP-400 explained

USS YP-400 was a seiner acquired by the U.S. Navy before completion during World War II to serve as a patrol boat.

History

She was laid down as a seiner^[1] at the Tacoma shipyard of the Tacoma Boat Building Company.^[2] On 24 May 1942, she was acquired by the U.S. Navy^[2] while still being built^[1] and completed later in the year.^[2] She was designated as a Yard Patrol Craft (YP) and assigned to the 13th Naval District.^[1] Her commanding officer was Lieutenant Commandeer Vernon Johnson.^[1] She was one of the initial ships assigned to Ralph C. Parker's Alaskan Sector of the 13th Naval District colloquially known as the "Alaskan Navy".

In 1946, she was transferred to the United States Maritime Commission; her ultimate fate is unknown.^[2]

Notes and References

1. April 1943. Aleutian Heroes, the "Yippiees". 7–10 . Pacific Motor Boat. The YP-400, a 94-foot, 400 hp Atlas diesel powered seiner taken over by the Navy while still on the builder's ways. Like other YP vessels, she's been in the thick of the Aleutian fighting ever since..
2. Web site: Gary P. . Priolo. David L. . Wright . YP-400 . NavSource – Naval Source History. 8 June 2020.