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Current
The movement of the water in a hori-
zontal direction.
Deadrise
The rise of the bottom of a midships
frame from the keel to the bilge.
Deck
Any permanent covering over a com-
partment.
Deep-six
To discard or throw overboard.
Depth Sounder An electronic depth-finding instrument,
measuring the time a sound wave takes
to go from the vessel to the bottom and
return, then displaying the result in feet,
fathoms, or meters.
Dinghy
A small, open boat.
Displacement
Type of hull that plows through the
Hull
water even when more power is added.
Dock
An enclosed or nearly enclosed water
area; all the port installations; a place
where vessels can moor, as a pier,
wharf, or floating dock.
Documented
Vessel registered with the U.S. Coast
Vessel
Guard.
Dolphin
A small group of piles, in the water, gen-
erally used for mooring or as a channel
marker.
Draft
The depth of the vessel below the water
line, measured vertically to the lowest
part of the hull.
Dunnage
Mats, boughs, pieces of wood, or other
loose materials placed under or among
goods carried as cargo in the hold of a
ship to keep them dry and to prevent
their motion and chafing; cushioning or
padding used in a shipping container to
protect fragile articles against shock and
breakage; baggage or personal effects.
Ebb
An outgoing tide.
Estuary
An inlet or arm of the sea.
Fathom
Six feet.
Fenders
Objects placed along the side of the
boat to protect the hull from damage.
Flare
The outward spread of the boat’s sides
from the waterline to the rail at the bow.
Also, a pyrotechnic signaling device that
can indicate distress.
Fore
Used to distinguish the forward part of a
boat or things forward of amidships. It is
the opposite of aft or after.
Forward
Toward the bow.
Frame
Ribs of the hull, extending from the keel
to the highest continuous deck.
Freeboard
The vertical distance measured on a
boat’s side from the waterline to the
gunwale.
Galley
The kitchen area of a boat.
Gimbals
Swivels used to keep equipment level.
7.3
Current
The movement of the water in a hori-
zontal direction.
Deadrise
The rise of the bottom of a midships
frame from the keel to the bilge.
Deck
Any permanent covering over a com-
partment.
Deep-six
To discard or throw overboard.
Depth Sounder
An electronic depth-finding instrument,
measuring the time a sound wave takes
to go from the vessel to the bottom and
return, then displaying the result in feet,
fathoms, or meters.
Dinghy
A small, open boat.
Displacement
Type of hull that plows through the
Hull
water even when more power is added.
Dock
An enclosed or nearly enclosed water
area; all the port installations; a place
where vessels can moor, as a pier
,
wharf, or floating dock.
Documented
Vessel registered with the U.S. Coast
Vessel
Guard.
Dolphin
A small group of piles, in the water, gen-
erally used for mooring or as a channel
marker.
Draft
The depth of the vessel below the water
line, measured vertically to the lowest
part of the hull.
Dunnage
Mats, boughs, pieces of wood, or other
loose materials placed under or among
goods carried as cargo in the hold of a
ship to keep them dry and to prevent
their motion and chafing; cushioning or
padding used in a shipping container to
protect fragile articles against shock and
breakage; baggage or personal effects.
Ebb
An outgoing tide.
Estuary
An inlet or arm of the sea.
Fathom
Six feet.
Fenders
Objects placed along the side of the
boat to protect the hull from damage.
Flare
The outward spread of the boat’s sides
from the waterline to the rail at the bow.
Also, a pyrotechnic signaling device that
can indicate distress.
Fore
Used to distinguish the forward part of a
boat or things forward of amidships. It is
the opposite of aft or after.
Forward
Toward the bow
.
Frame
Ribs of the hull, extending from the keel
to the highest continuous deck.
Freeboard
The vertical distance measured on a
boat’s side from the waterline to the
gunwale.
Galley
The kitchen area of a boat.
Gimbals
Swivels used to keep equipment level.
7.3