Hull (watercraft) - Appendages

Appendages

  • A protrusion below the waterline forward is called a bulbous bow and is fitted on some hulls to reduce the wave making resistance drag and thus increase fuel efficiency. Bulbs fitted at the stern are less common but accomplish a similar task. (see also: Naval architecture)
  • A keel may be fitted on a hull to increase the transverse stability, directional stability or to create lift.
  • Control devices such as a rudder, trim tabs or stabilizing fins may be fitted.

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