USS Constance II

USS Constance II (SP-633), later USS YP-633, was a United States Navy patrol vessel in commission from 1917 to 1922.

Constance II as a private motorboat sometime between 1914 and 1917.
History
United States
Name	USS Constance II (1917–1920) USS YP-633 (1920–1922)
Namesake	Constance II was her previous name retained YP-633 was her post-17 July 1920 hull code
Builder	Holmes Motor Boat Company, West Mystic, Connecticut
Completed	1914
Acquired	6 July 1917
Commissioned	30 July 1917
Renamed	YP-633 17 July 1920
Reclassified	"District patrol craft" (YP-633) 17 July 1920 "Small boat" 5 September 1922
Stricken	5 September 1922
Fate	Became non-commissioned U.S. Navy launch
Notes	Operated as private motorboat Constance II 1914–1917
General characteristics
Type	Patrol vessel
Length	41 ft (12 m)

Constance II was built as a private motorboat of the same name by the Holmes Motor Boat Company at West Mystic, Connecticut, in 1914. On 6 July 1917, the U.S. Navy acquired her from her owner, Joseph Gahm of Boston, Massachusetts, for use as a section patrol boat during World War I. She was commissioned as USS Constance II (SP-633) on 30 July 1917.

Assigned to the 1st Naval District in northern New England, Constance II performed patrol duty in the naval district for the next five years. When the U.S. Navy adopted its modern hull number system on 17 July 1920, Constance II was reclassified as "district patrol craft", redesignated YP-633, and renamed USS YP-633.

YP-633 was stricken from the naval district's list of district craft on 5 September 1922. Reclassified as a "small boat," she was reassigned to the Boston Navy Yard at Boston for use as a non-commissioned launch, in which capacity she served for some time thereafter.

References

•  This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
• Department of the Navy Naval History and Heritage Command Online Library of Selected Images: Civilian Ships: Constance II (American Motor Boat, 1914). Became USS Constance II (SP-633) in 1917 and YP-633 in 1920.
• Photo gallery of USS Constance II at NavSource Naval History