Compass error. The difference between the reading of a compass and the actual magnetic course or bearing due to errors in the compass reading. These errors can be caused by metals, magnetic fields and electrical fields near the compass. The act of checkin ...

The relationship (ratio) between the sails height (luff length) and length along the foot. High aspect ratio means a sail that is tall and narrow, low aspect ratio is a short, squat sail. A high aspect ratio sail is very efficient in sailing close to the ...

Indicates the jib or staysail being boomed out on the opposite side of the mainsail in a following wind, giving a large amount of sail area presented to the wind. see Wing and Wing

Said of a vessel when unable to maneuver.

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.

A single inlet compressor with the impeller or impellers mounted on a shaft supported by two bearings in a pedestal, with the driver coupled to the compressor shaft.

Dining room facilities for officers separate from the crew and passenger dining room.

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 container fitted with a solid removable roof, or with a tarpaulin roof so the container can be loaded or unloaded from the top.

A sailboat is always on one tack or the other; that is the sail is always on one side or the other.

Any small collar made with spunyarn or light line to hold something in place.

A stay leading from one mast, such as the main mast to another, such as the mizzen mast.

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

To stop, especially to stop work.

An arrangement whereby a steamship company, under rules and regulations established in the freight tariff of a given trade, accepts small packages at rates below the minimum bill of lading, and issues a parcel receipt instead of a bill of lading.

Time period from when a compressor loads until it unloads.

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.

An order given to take hold of a rope and pull.

Abbreviation for (1) "Interstate Commerce Commission," (2) "International Chamber of Commerce."

Sailing downwind with the wind blowing over the leeward side of the boat, increasing the possibility of an unexpected jibe.