A synthetic rubber frequently used for vessel and liquid filter element gasket.

A large body of water taken aboard (ship a sea).

The person or company who is usually the supplier or owner of commodities shipped. Also called Consignor.

A knot used to fasten a line or cable to the anchor.

A white navigation light carried by vessels under way at night to indicate their presence and give an indication of their course.

A series of sound signals required by COLREGS to prevent collisions at sea.

Wooden shoulders attached below the masthead to either side of a wooden mast which originally supported the trestle trees.

Said of a boat which turns end over end in very rough seas.

A dynamic compressor. A machine in which air or gas is compressed by the mechanical action of rotating vanes or impellers imparting velocity and pressure to the air or gas. In a centrifugal compressor, flow is in a radial direction. Air enters the compres ...

A pneumatic percussive drill designed as a boring tool.

The frames or timbers of a ship as they rise from the keel to form the shape of the hull.

Maintenance performed after a machine has failed to return it to an operating state.

Specialty compressed air treatment meeting OSHA Grade D breathing air requirements.

a filter medium that retains contaminants primarily within tortuous passages.

Charge made for local hauling by dray or truck. Same as Cartage.

In a square rigged ship, the act of hauling the head sheets to windward and laying the head-yards flat aback in order to bring the ships head out of the wind while tacking. This is done when helm action alone is insufficient.

A support wire running from the upper part of the mast to the bow of the boat designed to pull the mast forward. A forestay that attaches slightly below the top of the mast can be used to help control the bend of the mast. The most forward stay on the boa ...

The large enclosed floor where the lines of a vessel are laid out and the molds or templates made.

A business firm which sells its services to organizations which operate vessels

A metal fitting on the mast that the stays attached to the mast; a fitting on the mast for securing rigging.