PURSUIT OS 375, Owner'S Manual, Page: 116 / 146

OS 375
116
Rubrail: Railing (often rubber or hard plastic) that runs along the boat’s sheer to protect the hull when coming
alongside docks, piers, or other boats.
Rudder: A moveable flat surface that is attached vertically at or near the stern for steering.
S
ea anchor: An anchor that does not touch the bottom. Provides drag to hold the bow in the most favorable
position in heavy seas.
Scupper: An opening in the hull side or transom of the boat through which water on deck or in the cockpit
is drained overboard.
Seacock: Safety valves installed just inside the thru-hull fittings and ahead of the piping or hose running from
the fittings.
Shaft Log: Pipe through which the propeller shaft passes.
Sheer: The uppermost edge of the hull.
Sling: A strap which will hold the boat securely while being lifted, lowered, or carried.
Slip: A boat's berth between two pilings or piers.
Sole: The deck of a cockpit or interior cabin.
Spring Line: A line that leads from the bow aft or from the stern forward to prevent the boat from moving
ahead or astern.
Starboard: The right side of a boat when facing the bow.
Steerageway: Sufficient speed to keep the boat responding to the rudder or drive unit.
Stem: The vertical portion of the hull at the bow.
Stern: The rear end of a boat.
Stow: To pack away neatly.
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 entering 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.