An agreement to hold a carrier harmless with regard to a liability.

(1) The condition of a vessel stranded on a reef or a rock when the seas break over her deck. (2) Half drunk; incapacitated by drink.

A keel that is narrow and deeper than a full keel.

The condition when a perfect gas is isentropically compressed, and the gas inlet temperature and also the amount of work spent is the same for each stage.

The fitting which connects the boom to the mast.

A triangular fore-and-aft sail carried on a stay. A sail that is set on a stay, and not on a yard or a mast. On a cutter this is the sail located between the jib and the main sail

A signboard attached to a daybeacon to convey navigational information presenting one of several standard shapes (square, triangle, rectangle) and colors (red, green, orange, yellow, or black). Daymarks usually have reflective material indicating the sha ...

A tube with a narrow throat (a constriction) that increases the velocity and lowers the pressure of the liquid passing through it, creating a partial vacuum immediately after the constriction in the tube. The vacuum created has a sucking effect, and a ven ...

Direction from which the wind is blowing; an unsailable sector between close hauled headings.

The number of degrees of list a vessel has. The first indication that a vessel may need to reef is when there is too great an angle of heel.

Said of cable when it extends vertically and taut from anchor to hawsepipe.

A wind shift that allows a boat to sail above its mean wind course.

A sail set forward of the foremast on the headstay; a foresail

Compressors of 20 HP or less, generally combined with all the components required to put the into operation.

Sailing vessel with three or more masts. Square rigged on foremast, fore and aft rigged on all others.

Owners or operators of vessels providing transportation to shippers. The term is also used to refer to the vessels.

A capacity measurement equal to one-fourth of a barrel.

A hole in the hull for mooring lines, cable, or chain to run through.

Assault upon a seaman, by Master, while at sea.

A naval rank next below that of admiral.