PURSUIT OS 325 OFFSHORE, Owner'S Manual

Page: 101 / 168

Glossary of Terms
A-5
Appendix A
OS 325
Stringer
: Longitudinal members fastened
inside the hull for additional structural
strength.
Strut
: Mounted to the hull which supports
the propeller shaft in place.
Strut Bearing
: See “cutlass bearing.”
Stuffing Box
: Prevents water from enter-
ing at the point where the propeller shaft
passes through the shaft log.
Superstructure
: Something built above
the main deck level.
Swamps
: When a boat fills with water from
over the side.
Swimming Ladder
: Much the same as the
boarding ladder except that it extends down
into the water.
T
affrail
: Rail around the rear of the cock-
pit.
Thru-hull
: A fitting used to pass fluids (usu-
ally water) through the hull surface, either
above or below the waterline.
Topsides
: The side skin of a boat between
the waterline or chine and deck.
Transom
: A flat stern at right angles to the
keel.
Travel Lift
: A machine used at boat yards
to hoist boats out of and back into the water.
Trim
: Refers to the boat's angle or the way it
is balanced.
Trough
: The area of water between the
crests of waves and parallel to them.
Twin-Screw Craft
: A boat with two propel-
lers on two separate shafts.
U
nderway
: When a boat moves through
the water.
W
ake
: Disrupted water that a boat leaves
astern as a result of its motion.
Wash
: The flow of water that results from
the action of the propeller or propellers.
Waterline
: The plane of a boat where the
surface of the water touches the hull when it
is afloat on even keel.
Watertight Bulkhead
: Bulkheads secured
so tightly so as not to let water pass.
Wharf
: A structure generally parallel to the
shore.
Working Anchor
: An anchor carried on a
boat for most normal uses. Refers to the
anchor used in typical anchoring situations.
Windlass
: A winch used to raise and lower
the anchor.
Windward
: Toward the direction from
which the wind is coming.
Y
acht Basin
: A protected facility primarily
for recreational small craft.
Yaw
: When a boat runs off her course to
either side.