SHIPTALK: A GLOSSARY OF SHIPPING AND MARITIME TERMS

SATELLITE NAVIGATION – A form of position finding using radio transmissions from satellites with sophisticated on-board automatic equipment.
SCOPE – Technically, the ratio of length of anchor rode in use to the vertical distance from the bow of the vessel to the bottom of the water. Usually six to seven to one for calm weather and more scope in storm conditions.
SCREW – A boat's propeller.

SATELLITE NAVIGATION – A form of position finding using radio transmissions from satellites with sophisticated on-board automatic equipment.
SCOPE – Technically, the ratio of length of anchor rode in use to the vertical distance from the bow of the vessel to the bottom of the water. Usually six to seven to one for calm weather and more scope in storm conditions.
SCREW – A boat's propeller.
SCUPPERS – Drain holes on deck, in the toe rail, or in bulwarks or (with drain pipes) in the deck itself.
SEA COCK – A through hull valve, a shut off on a plumbing or drain pipe between the vessel's interior and the sea.
SEAMANSHIP – All the arts and skills of boat handling, ranging from maintenence and repairs to piloting, sail handling, marlinespike work, and rigging.
SEA ROOM – A safe distance from the shore or other hazards.
SEAWORTHY – A boat or a boat's gear able to meet the usual sea conditions.
SECURE – To make fast.
SET – Direction toward which the current is flowing.
SHIP – A larger vessel usually thought of as being used for ocean travel. A vessel able to carry a "boat" on board.
SLACK – Not fastened; loose. Also, to loosen.
SOLE – Cabin or saloon floor. Timber extensions on the bottom of the rudder. Also the molded fiberglass deck of a cockpit.