YT-86-class tugboat

Class overview
Name	YT-86-class harbor tugboat
Builders	Mare Island Naval Shipyard, Vallejo, California Pearl Harbor Naval Shipyard, Hawaii
Built	1918-1920
Planned	15
Completed	15
General characteristics
Type	Tugboat
Tonnage	54 gross tons [1]
Length	65 ft 8 in (20.02 m) [1]
Beam	16 ft 2 in (4.93 m) [1]
Draft	6 ft 2 in (1.88 m) [1]
Propulsion	one Union 4 cylinder, 4 cycle gasoline engine, 150shp, single 12" X 15" propeller

The YT-86-class harbor tugboat was a wood-hulled tugboat design ordered by the U.S. Navy during World War I. ^[2] 15 ships of the type were launched and completed, 12 as harbor tugs (Nos. 86-90 and 92-99) and three as ambulance boats (Nos. 91, 100, and 101 were designated as Ambulance Boats No. 1, No. 2, and No. 3). ^[3] All were launched at the Mare Island Naval Shipyard in Vallejo, California except for one (No. 90) at the Pearl Harbor Naval Shipyard in Hawaii. ^{[3] [4]} In 1920, after the Navy's adoption of alpha-numeric hull designations, the ships were classified as yard tugs YT-86 though YT-90 and YT-92 through YT-99 and ambulance boats YH-1, YH-2, and YH-3.

See also

• YT-46-class harbor tugboat

References

1. Priolo, Gary P.; Wright, David L. "YTL-86, ex-YMT-1 (1929 - 1944), YT-86 (1920 - 1929), Harbor Tug No. 86 (1918 - 1920)". NavSource - Naval Source History. Retrieved June 7, 2022.
2. "U. S. Navy Harbor Tug No. 85, 1919-1920". Naval Historical Center . May 2007.
3. Ships' Data, U.S. Naval Vessels, department of the Navy. Government Printing Office. July 1, 1920. pp. 347 & 309.
4. Colton, Tim (May 7, 2011). "Yard Tugs (YT, YTB, YTM, YTL) Built or Acquired Before WWII". ShipbuildingHistory. Retrieved 10 July 2022.