On the alert: watchful.
Builder: Pioneer Boat & Pattern Company, Bay City, Michigan
Beam: 11' 7"
Draft: 3' 6"
Displacement: 75 tons
Commissioned: 1910 (purchased)
Machinery: Gasoline engine
Performance: 8 knots maximum
The Vigilant was a harbor launch that served at the Sault Sainte Marie locks. She was purchased for the Service in 1910. She was redesignated as AB-17 on 6 November 1923.
Dictionary of American Naval Fighting Ships. Washington, DC: USGPO.
Donald Canney. U.S. Coast Guard and Revenue Cutters, 1790-1935. Annapolis, MD: Naval Institute Press, 1995.
U.S. Coast Guard. Record of Movements: Vessels of the United States Coast Guard: 1790 - December 31, 1933. Washington, DC: U.S. Government Printing Office, 1934; 1989 (reprint).