Armed merchant ship

The term armed merchant ship may describe a number of similar ship modifications intended for significantly different missions. The term armed merchantman is generally used.

  • East Indiaman describes late 18th and early 19th-century sailing ships engaged in trade while carrying guns similar to contemporary warships.
  • Defensively Equipped Merchant Ships were civilian-manned cargo ships carrying a small number of military personnel to operate an anti-submarine gun and anti-aircraft machine guns during the world wars of the early 20th century.[1]
  • Auxiliary cruisers were cargo ships commissioned as naval vessels with a military crew, converted to carry the guns of a light cruiser, and sometimes used as Merchant raiders.[2]
  • Armed merchant cruisers were fast passenger liners commissioned as naval vessels with a military crew and converted to carry the guns of a light cruiser.[3]
  • Naval trawlers were fishing trawlers commissioned as naval vessels with a military crew and equipped for minesweeping or anti-submarine escort.[4]
  • Q-ships were small civilian ships commissioned as naval vessels with a military crew, but retaining their original appearance while carrying concealed anti-submarine weapons.[5]
  • Armed boarding steamers were merchant steamers converted by the United Kingdom for boarding enemy vessels.

Sources
  • Hague, Arnold (2000). The Allied Convoy System 1939–1945. Naval Institute Press. ISBN 1-55750-019-3.
  • Lenton, H.T. & Colledge, J.J. (1968). British and Dominion Warships of World War II. Doubleday and Company.
  • Morison, Samuel Eliot (1975). History of United States Naval Operations in World War II, Volume I The Battle of the Atlantic 1939–1943. Little, Brown and Company.
  • Schmalenbach, Paul (1979). German Raiders. Naval Institute Press.

Notes
  1. Hague 2000 pp.101-105
  2. Schmalenbach 1979 pp.11-15
  3. Lenton and Colledge 1968 p.265
  4. Lenton and Colledge 1968 pp.403-404
  5. Morison 1975 pp.281-286
gollark: The only "difficult but rewarding" stuff here is extension papers like STEP and they don't really have... teaching... for that.
gollark: Not only does it do horrible abuse of notation but it does a "left-handed Riemann sum" with fixed thing widths, and thus breaks on certain exotic functions.
gollark: I know, yes.
gollark: Ironically, the spec here contains it (not by name) but the textbook gets it slightly wrong.
gollark: Isn't Riemann integration more of a definition than a practical approximation?
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