Algoma-class sloop

Painting of USS Plymouth from 1884
Class overview
NameAlgoma class
Builders
OperatorsUnited States Navy
Preceded byTiconderoga-class sloops
Built1867–1868
In service1869–1891
Planned11
Completed4
Retired4
General characteristics
Class & typeScrew sloop
Displacement2,394 long tons (2,681 short tons)
Length250.4 ft (76.3 m) lbp
Beam38 ft (12 m)
Depth16.5 ft (5.0 m)
PropulsionSails and steam
Complement291
Armament
  • 10 × 9 in (23 cm) guns
  • 1 × 60 lb (27 kg) rifle
  • 1 × 11 in (28 cm)-inch pivot gun

The Alaska or Algoma-class sloop was a series of screw sloops operated by the US Navy during the later parts of the 19th century. Designed during the American Civil War, only 4 of the 11 planned ships were built, all after the war's end. The class had a brief service life and were all out of service by the early 1890s.