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SALON: The main social cabin of a yacht.
SCREW: A propeller.
SCUPPER: A drain from the edge of the
deck or cockpit that discharges over-
board.
SEACOCK: A positive action shut-off valve
connected directly to the hull seawater in-
take valve.
SHAFT: The long round member that con-
nects the transmission to the propeller.
SHAFT LOG: A fi tting at the hull bottom
where the propeller shaft penetrates the
hull. The shaft log permits rotation of the
shaft while simultaneously preventing water
from entering the hull.
SHEER: The top of the hull from bow to
stern. The point where the hull meets the
deck.
SHEER STRAKE: The upper edge of the
hull immediately below the deck.
SOLE: Term used to refer to the cockpit
fl oor or fl oor of the cabin.
SPRING LINE: A pivot line used in docking
or to prevent the yacht from moving forward
or astern while made fast to a dock.
STARBOARD: Looking forward, the right
side of a yacht from bow to stern.
STARBOARD BOW: Looking forward, the
front, right side of the bow.
STARBOARD QUARTER: Looking for-
ward, the right rear section of a yacht.
STEM: The leading edge of a yacht’s hull.
STERN: The rear of a yacht.
STRINGER: A fore and aft continuous mem-
ber located in the bottom of the hull used to
provide longitudinal strength.
STRUT: A propeller shaft support that is
below the hull. The main strut is a large strut
that is mounted immediately forward of the
propeller. An intermediate strut is smaller
than the main strut and is mounted between
the main strut and the shaft log.
SUMP: A pit or well into which water is
drained.
SUPERSTRUCTURE: A fl ying bridge or
other structure that extends above the
deck.
TOPSIDE: To go to the uppermost deck.
TRANSOM: The stern cross section of a
yacht.
UNDERWAY: A vessel that is not moored,
docked, at anchor or aground.
V-BOTTOM: A hull with the bottom section
that is in the shape of a “V”.
V-DRIVE: A drive system that has the output
of the engine facing forward and is coupled
to a transmission, which then changes the
output aft.
WATERLINE: The line of water on the hull
when the boat is afl oat and at rest.
WEATHER DECK: A deck with no overhead
protection.
WINDLASS: A device used to raise and
lower an anchor.
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