Hyannis (YTB-817)

Hyannis (YTB-817) was a United States Navy Natick-class large harbor tug named for Hyannis, Massachusetts.

Hyannis (YTB-817)

History
United States
Namesake	Hyannis, Massachusetts
Awarded	9 August 1971
Builder	Marinette Marine
Laid down	12 July 1972
Launched	15 March 1973
Acquired	17 May 1973
In service	1973
Out of service	1997
Stricken	21 August 1997
Identification	IMO number: 8744688 MMSI number: 316011504 Callsign: CFG582
Fate	Transferred to USFWS 17 October 1997
General characteristics
Class & type	Natick-class large harbor tug
Displacement	286 long tons (291 t) (light) 346 long tons (352 t) (full)
Length	109 ft (33 m)
Beam	31 ft (9.4 m)
Draft	14 ft (4.3 m)
Propulsion	One diesel propulsion engine, 2000 HP
Speed	12 knots (14 mph; 22 km/h)
Complement	12
Armament	None

Construction

The contract for Hyannis was awarded 9 August 1971. She was laid down on 12 July 1972 at Marinette, Wisconsin, by Marinette Marine and launched 15 March 1973.

Operational history

Stricken from the Navy List 21 August 1997, Hyannis was transferred to the United States Fish and Wildlife Service at Midway Atoll and renamed Constant II.^[1] In 2006, she was sold and renamed Sea-Link Pusher.^[2]