Devices used between rotating and stationary parts to separate, and minimized leakage between, areas of unequal pressures.

Short pieces of line fastened to the sail at reef points, used for tying a reef to reduce sail area. The reef line will pass through reef cringles, which will become the new tack and clew of the reefed sail.

Any object that a navigator may use to find his position, such as permanent land or sea markers, buoys, radiobeacons, and lighthouses.

Loaded with more cargo than a ship can safely navigate with. Drunk.

Is the term used for average atmospheric air at sea level in a temperature zone where it contains some moisture. It is defined in the ASME Test Code For Displacement Compressors as being at 14.696 psiA, 68

In charge of twelve to four watch. Ships navigation officer. Keeps charts (maps) up to date and monitors navigation equipment on bridge.

a type of separator for removal of larger particles from an exhaust gas stream. Gas laden with particulates enters the cyclone and is directed to flow in a spiral causing the entrained particulates to fall out and collect at the bottom. The gas exits near ...

A measurement of vacuum or pressure that is used to measure the airflow restriction.

The strongest part of a vessel's side, to which the beams, knees, and foot-hooks are bolted. The part between the water's edge and the bulwarks.

A seaman's sewing outfit for heavy work.

The maximum continuous operating pressure as designed by the manufacturer.

The stationary seating surface, the inlet of a valve.

A notation on a bill of lading that the cargo has been stowed on the open deck of the ship.

Space booked by shipper or charterer on a vessel but not used

Landfall. To reach shore.

Old three-masted trading vessel which was square-rigged on the fore and main masts, and lateen rigged on the mizzen mast. Similar to the Caravel, but larger and more robust.

Are categorized as internal or external heat reactivated. Internal type - Process air enters the dryer through the inlet piping, is then dried as it passes through the desiccant bed, and discharges through the outlet piping as dry air. Regeneration of the ...

Self Contained underwater Breathing Apparatus - see Aqualung.

To make headway when there is no apparent wind.

A rope passed round a man in the chains, while sounding.