Main deck

The main deck of USS Wainwright supports the 5"/54 gun aft, but is not the weather deck for the greater length of the forward portion of the ship.

The main deck of a ship is the uppermost complete deck extending from bow to stern.[1] A steel ship's hull may be considered a structural beam with the main deck forming the upper flange of a box girder and the keel forming the lower strength member. The main deck may act as a tension member when the ship is supported by a single wave amidships, or as a compression member when the ship is supported between waves forward and aft.[2]


  1. ^ Knight, Austin M. (1937). Modern Seamanship (Tenth ed.). New York: D. Van Nostrand Company. p. 31.
  2. ^ Manning, George Charles (1930). Manual of Naval Architecture. New York: D. Van Nostrand Company. pp. 102&103.

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