Sailors Choice
Nautical Terms

  

DDD  DELTA  DDD

DAGGER BOARD  A centerboard that is instead raised and lowered vertically in a trunk
DAVIT A hoist that projects over the side of a ship or a hatchway and is used especially for boats, anchors, or cargo.  
DEAD RECKONING To plot a future position based on travel from a known position using speed, time and course
DEAD RISE The rise or upward slant of the bottom of the ship from the keel to the bilge, the measurement of the angle between the bottom of a boat and its widest beam. A vessel with a 0Âș deadrise has a flat bottom,  high numbers indicate deep V shaped hulls.
DEVIATION  The errors of a compass' reading due to the effect of magnetic forces on board the boat
DEVIATION CARD  A listing of a  particular boat's steering deviation on each point of the compass
DINGHY  A small rowboat or inflatable, usually used for transport
DINK  Nickname for dinghy
DISPLACEMENT  The weight of the water displaced by a floating boat which is equal to the its weight 
DITTY BAG  Canvas bag for a  sailor's personal tools
DOLPHIN a spar or buoy for mooring boats.  also a cluster of closely driven piles used as a fender for a dock or as a mooring or guide for boats 
DOUSE To take down a  sail quickly
DOWNHAUL, BOOM  Tackle attached to the gooseneck which pulls down the boom  when  the sail is raised to tighten the luff
DOWNWIND  To leeward
DRAFT  1)  How deep the water must be to float a boat.  
2)  The belly or chord depth of the sail, its fullness 
3)  The depth of the boat below the waterline 
4)  The amount of water the boat draws from the water line to its greatest extremity below the water line.
DRIFT  Speed or velocity of current
 
  
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These are informative only and are not the last word!
 
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