Hydrodynamic
A shape designed to move efficiently through the water.
Hydrofoil
A boat that has foils under its hull onto which it rises to plane across the water surface at high speed.
[edit] Hydrodynamic keels
[edit] Non-sailing keels
The keel surface on the bottom of the hull gives the ship greater directional control and stability.
hydrodynamics
The study of the flow of liquids. Compare with aerodynamics.
hydrofoil ...
A hydrodynamic shape attached to the chine that increases the area available for buoyancy.
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To gain hydrodynamic lift causing the boat to lift./font
Planking
The covering of the ribs of the boat./font ...
Usually used when referring to an objects aerodynamic or hydrodynamic properties.
In shallower water, a vessel's speed introduces hydrodynamic forces that are not present in deeper water. As a vessel moves forward, the water in front moves away and then closes in after the stern passes.
While the hydrodynamics are a bit more refined, the powerful lines and beautiful styling remain unchanged.
There are similar deflection forces and hydrodynamic lift created on the keel as it is pushed through the water. It's the combination of sails and keel that allows a boat to sail closer than (a beam reach at) 90° to the wind direction.
In boats and ships, keel can refer to either of two parts: a structural element, or a hydrodynamic element. These parts overlap. A structural keel is a large beam around which the hull of a ship is built. The keel runs in the middle of the ship, f...
Keel: A ballasted appendage projecting below the boat that keeps it from capsizing, and also supplies the hydrodynamic lateral force that enables the boat to sail upwind.
Knot: One nautical mile per hour.
The curvature of an object such as a sail, keel or deck. Usually used when referring to an objects aerodynamic or hydrodynamic properties.
can buoy ...
These compare with the crest lines obtained in the above hydrodynamical investigation; the transverse and diverging waves correspond to the different portions of the crest lines which are separated by the cusps.
An undesirable condition for safety and hydrodynamic reasons. (See WEATHER HELM) LEEWARD On a hull, the side away from the direction of the wind; the protected side.
 See also: Forward, Boat, Hull, Keel, Deck
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