Naval Historywith Dr. Alex

Q&A · 2:10:36-2:11:15

Larger Panama locks and Iowa-class design

Wider Panama Canal locks would let American battleships use fuller hull forms, improving stability and seakeeping instead of forcing the very fine Iowa-class bow.

BattleshipsIowa Class BattleshipsNaval ArchitecturePanama CanalUS Navy
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Question

How would larger Panama Canal locks have changed American battleship design in the 1930s and 1940s?

Short answer

Ships could be larger and use broader, less sharply narrowed hull forms, improving stability and ride, especially for the Iowa class.

Notes

The canal constraint appears in a ship's proportions as well as its beam number. Iowa's narrow forward form reflects the need to fit speed, length, and armament within the locks. Larger locks would permit a broader hull with better stability and seakeeping. Designers would also gain more freedom to increase displacement without producing such a fine bow.