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Term: Image: Definition:
Chine
Portion of the hull where the bottom and sides intersect (can be rounded or angled).
Clam Shell Vent
clamshell vents are commonly used to vent bilges or as intake air supplements for active vents.
Cleat
Hardware piece on a boat or a dock to which lines are attached.
Coach Roof
The roof of the cabin on a small boat.
Coaming
A raised edge, as around the cockpit or around a hatchway, to keep water out.

Cockpit
Deck space for the crew of a boat, typically recessed.
Companionway
Entryway from the deck to the belowdeck cabin area.
Cutter
Single-masted sailboat similar to a sloop, but with the mast farther aft to allow for a double headsail.
Daggerboard
A keel-like device that is manually raised and lowered vertically without using a hinge.
Davit
A small crane used to hoist a boat or dinghy or other object.
Deep Fin Keel
By a fin, I refer to a simple deep keel that's length is less than 50% of the hull.
Deep-V
A hull shape characterized by a sharp deadrise, typically more than 20 degrees.
Dinghy
A small sailboat often raced that can be sailed on and off a beach. Also a tender, either rowed or equipped with power, used to go to and from a larger vessel.
Direct Drive
An engine configuration in which the drive shaft runs in a straight driveline through the bottom of the hull.
Draft
Vertical distance a boat penetrates the water.
Fenders
Made of plastic or rubber, the fenders prevent a vessel from moving onto a pier. They prevent damage to the boat as well as the pier should the two come into contact with each other.
Fiberglass
Fiberglass
Fin Keel
A keel shaped like the fin of a fish that is shorter and deeper than a full-length keel.

Flat-Bottom Boat
Type of boat or hull shape with very little or no deadrise.
Fly Bridge
Raised, second-story helm station, often located above the primary helm
Fore
Located at the front of a boat.
Freeboard
Vertical distance between the waterline and the top of the hull side.
Full Keel
A full keel by definition runs the length of at least 50% of the hull. The forward edge curves vertically while the aft edge often connects to a rudder.
Furler
Rolling or folding a sail on its boom.
Galley
The kitchen area on a boat.