Alert Class Gunboat (1874)

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Two of the three Alert class gunboats were still in service with the U.S. Navy during the 1880s. The third was lost in 1877.

Overview of three vessels
Citations for this data available on individual ship pages
Name Hull No. Builder Laid Down Launched Commissioned Fate
Alert AS-4 John Roach & Sons Sep 1873 18 Sep, 1874 27 May, 1875 Sold 29 Jul, 1922
Huron John Roach & Sons 1873 2 Sep, 1874 15 Nov, 1875 Foundered 24 Nov, 1877
Ranger PG-23
Harlan & Hollingsworth 1873 10 May, 1876 27 Nov, 1876 Transferred 11 Apr, 1940

Design & Construction

Authorized simultaneously with the preceding Adams class, the three Alerts were built with iron hulls instead of wooden ones owing to political pressure.[1]




As Completed

  • one 11-inch smoothbore
  • two 9-inch smoothbores
  • one 60-pounder muzzle-loading rifle

For subsequent modifications, see individual articles.

See Also


  1. Bauer and Roberts. Register of Ships. p. 78.
  2. Bauer and Roberts. Register of Ships. p. 77.


  • Bauer, K. Jack and Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775-1990: Major Combatants. New York: Greenwood Press.
  • Chesneau, Robert; Kolesnik, Eugene (editors) (1979). Conway's All the World's Fighting Ships 1860–1905. London: Conway Maritime Press. (on and
  • Silverstone, Paul H. (2006). The U.S. Navy Warship Series: Civil War Navies, 1855-1883. New York: Routledge.
  • Silverstone, Paul H. (2006). The U.S. Navy Warship Series: The New Navy 1883-1922. New York: Routledge.

Alert Class Gunboat
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