A type of radio carried on a boat to transmit long distances.

A hawser or line attached to an anchor.

As close to the wind as possible, with all sails full, and no wrinkles in them.

Watertight housing for the centerboard.

Small hole bored in cask or barrel to allow air to enter when emptying.

A vessel of amy rig, mounting between 18 and 32 guns.

The maximum cylinder volume on a working side of the piston, minus the piston displacement volume per stroke. It is usually expressed as a percentage of the displace volume.

Slacking a rope smartly, carefully and in small amounts.

(1) A point of sail between close-hauled and a run, with the wind coming from abeam. (2) A distance, or fetch. (3) Straight stretch of water between two bends in a river or channel.

(1) Free, not entangled (2) To finalize all formalities in a Customs House.

This term is used for turbo compressors and represents the maximum flow condition. It is sometimes also referred to as stonewalling.

The operation of reducing a sail by taking in one or more of the reefs.

Convention on International Regulations for Preventing Collisions at Sea.

A short length of small rope "ratline stuff" running horizontally across shrouds, for a ladder step.

Seaman's name for the excitement on board as the ship approachs her destination, giving the crew some liberty ashore.

Any paint gun which uses air flowing over an opening to create a vacuum to draw paint up a tube to be atomized.

Cargo that will fit into a container and result in an economical shipment.

The shaft input per unit of compressor capacity.

Type of bulk carrier built for the carriage of coal.

A hand held pneumatic tool. Designed to chip masonry, plaster, concrete etc.