- References
{{Orphan|date=January 2011}}{{use dmy dates |date=July 2013}}William M}}>William M{{Infobox ship image| Ship image= | Ship caption=C-Tractor 3, sister ship to William M, escorts the U.S. Navy ballistic-missile submarine USS Rhode Island (SSBN-740).
}}{{Infobox ship class overview | Builders=North American Shipbuilding | Operators=Bay-Houston Towing Company | Class before= | Class after= | Subclasses= | Built range=1989–1993 | In service range=1989–present | Total ships building= | Total ships planned= | Total ships completed=14 | Total ships cancelled= | Total ships active=14 | Total ships laid up= | Total ships lost= | Total ships retired= | Total ships scrapped= | Total ships preserved=
}}{{Infobox ship career | Hide header= | Ship name=*C-Tractor 1 (1989–) | Ship owner=*Alpha Marine Services (1989–2005)- Bay-Houston Towing Company (2005–)
| Ship operator= | Ship registry= | Ship route= | Ship ordered= | Ship builder=North American Shipbuilding | Ship original cost= | Ship yard number=133 | Ship way number= | Ship laid down= | Ship launched=1989 | Ship completed= | Ship christened= | Ship acquired= | Ship maiden voyage= | Ship in service= | Ship out of service= | 8835140}}- {{MMSI Number|367019240}}
- Callsign: WDC4110
| Ship fate= | Ship status=Active | Ship notes=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship type=Z-drive tug | 189}} | Ship displacement= | 109|ft|m|abbr=on}} | 37|ft|m|abbr=on}} | Ship height= | Ship draught= | 17|ft|m|abbr=on}} | Ship depth= | Ship decks= | Ship deck clearance= | Ship ramps= | Ship ice class= | Ship sail plan= | 4000|shp|abbr=on}} | Ship propulsion=Z-drive | 12|kn}} | Ship capacity= | Ship crew= | Ship notes=
}} | | Bollard pull: | 110000|lbs|abbr=on}} | | Water cannons: | 3500|USgal/min|m3/h|abbr=on}} | Tractor Tug William M is a harbor tug, originally built in 1989 as C-Tractor 1 for Alpha Marine Services, a subsidiary of Edison Chouest Offshore.[1][2]She was the first in a series of 14 tractor tugs built by North American Shipbuilding for Edison Chouest Offshore.[3] In 2005, she was sold to Bay-Houston Towing Company, and is now based in Corpus Christi, Texas. William M and her sister ships' measure {{GRT|189|link=off}}.[1] They are propelled by Z-drive pods, powered by twin EMD 16-645 engines rated at {{convert|4,000|shp}}. The tugs mount fore and aft fire-fighting monitors, capable of pumping a total of {{convert|3500|USgal/min|m3/h}}. Her sister ships continue to be owned by Alpha Marine and six of them, C-Tractor 2, C-Tractor 3, C-Tractor 4, C-Tractor 5, C-Tractor 12, C-Tractor 13 are currently chartered to the United States Navy.[5][6] References[1][2][3][4][5]{{DEFAULTSORT:William M}} 2 : Tugboats of the United States|1989 ships |