USS Express No. 4

USS Express No. 4 (SP-745), sometimes written as Express # 4, was a United States Navy patrol vessel in commission from 1917 to 1919.

Express No. 4 as a private motorboat at the time of her completion in 1917.
History
United States
Name	USS Express No. 4
Namesake	Previous name retained
Builder	C. F. Ferguson, Groton, Connecticut
Completed	1917
Acquired	2 July 1917
Commissioned	2 July 1917
Stricken	23 January 1919
Fate	Returned to owner January 1919
Notes	Operated as private motorboat Express No. 4 from 1919
General characteristics
Type	Patrol vessel
Length	46 ft (14 m)
Beam	9 ft (2.7 m)
Draft	2 ft 3 in (0.69 m)
Speed	17 knots (31 km/h)
Complement	7
Armament	1 × 1-pounder gun

Express No. 4 was built as a private motorboat of the same name in 1917 by C. F. Ferguson at Groton, Connecticut. Upon her completion in early July 1917, the U.S. Navy leased her from her owner, M. F. Plant of Groton, for use as a section patrol boat during World War I. She was enrolled in the Naval Coast Defense Reserve and was commissioned on 2 July 1917 as USS Express No. 4 (SP-745).

Although assigned to the 2nd Naval District in southern New England, Express No. 4 operated on patrol duties along the United States East Coast as far south as Florida during World War I.

Decommissioned after the end of the war, Express No. 4 was stricken from the Navy List on 23 January 1919 and returned to Plant.