Purpose and proper use of a safety harness, tether and jacklines - ️️-A safety
tether has a heavy metal clip at each end. 1 secured to the harness, other clipped to a
jackline on deck (or hardware well inboard.)
-A Jackline usually runs on both sides of the deck, from the cockpit all the way...
ASA 103 Vocabulary Terms, Rules &
Maneuvers
Purpose and proper use of a safety harness, tether and jacklines - ✔️✔️-A safety
tether has a heavy metal clip at each end. 1 secured to the harness, other clipped to a
jackline on deck (or hardware well inboard.)
-A Jackline usually runs on both sides of the deck, from the cockpit all the way to the
bow, and is secured to the deck by pad-eyes.
-Purpose: to stay safe on deck in strong weather conditions or when sailing alone.
-A safety harness is worn outside the clothing. It has straps over each shoulder, one
around the rib cage, and possibly one between the legs, and is secured in the middle of
the chest with a heavy clasp.
Emergency tiller - ✔️✔️On boats with wheel steering, a tiller that can be fitted to the top
of the rudder stock so the boat could be steered in the event the wheel-steering
mechanism fails.
Turnbuckle - ✔️✔️A mechanical fitting attached to the lower ends of stays, which
connects them to the chainplate, allowing for the standing rigging to be adjusted
(tightened.)
Chainplate - ✔️✔️Metal plate bolted to the hull of a boat to which standing rigging is
attached.
Hatch - ✔️✔️A covered opening in the deck.
Transom - ✔️✔️The flat surface forming the stern of a vessel.
Self-bailing cockpit - ✔️✔️A cockpit that is high enough above the waterline that any
water that gets inside will drain overboard by gravity, through scuppers (drains) located
in the aft corner of the cockpit well.
Compass - ✔️✔️An instrument that indicates direction relative to Earth's magnetic field.
Binnacle - ✔️✔️The pedestal on which the boat's main compass is mounted.
Cockpit locker/Lazarette - ✔️✔️Storage compartment in the cockpit seating area.
Stemhead Fitting - ✔️✔️A stainless-steel fitting on the bow of a boat to which the
forestay and jib tack are attached, as well as the roller fairlead for the anchor rode.
, Companionway - ✔️✔️A staircase leading from a deck to the cabins or area below.
Saloon - ✔️✔️The area of a boat that serves as the living room, dining room, and
possibly extra sleeping quarters.
Galley - ✔️✔️The kitchen on a boat.
V-berth - ✔️✔️The forward cabin of a boat that takes the shape of the bow.
Auxiliary engine - ✔️✔️The source of auxiliary propulsion on a sailboat. Used also to
produce electricity needed to charge the house batteries.
Bilge - ✔️✔️The lowest interior region of the hull.
Bilge pump - ✔️✔️A pump used to remove water from the bilge. Usually there is an
automatic (electric) bilge pump and a manual bilge pump on every boat.
Through-hull fitting - ✔️✔️A fitting in the hull through which water can be drawn in or
discarded.
Seacock - ✔️✔️A marine valve which opens and closes a hole through the hull for
saltwater needed on board or for discharge.
Ground tackle - ✔️✔️A group term for all gear used in anchoring a vessel: anchor,
chain, rode.
Windlass - ✔️✔️A winch used primarily for lifting and lowering an anchor.
Federally required safety equipment for a 33-foot recreational vessel equipped with an
inboard diesel engine. - ✔️✔️-Boat registration certificate and hull numbers.
-PFDs: one per person (type I, II or III) + one type IV.
-Visual distress signals for day: distress flag and/or 3 smoke flares.
-Visual distress signals for night: 3 red night flares.
-Fire extinguishers: 2 B-I or 1 B-II.
-Sound producing device: air horn (hand-held or mouth-blown.)
-Navigation lights: sidelights, stern light, masthead light.
-Placards: "Discharge of Oil Prohibited" placard and a "MARPOL" placard (Marine
Pollution.)
-Marine Sanitation Device: type I, II or III.
PFDs characteristics - ✔️✔️-TYPE I - Offshore Life Jacket. Most buoyant, will roll
unconscious person face-up.
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