The motion of air relative to a body in it.

An enterprise in which there is a risk of loss.

To unfold or unroll a sail. The opposite of furl.

The distance between the water level at chart datum and an overhead obstacle such as a bridge or power line.

A unit of electrical current or rate of flow of electrons through a conductor. One volt across one ohm of resistance causes a current flow of one ampere. One ampere is equal to 6.25 x 1018 electrons per second passing a set point in a circuit.

A grooved metal extrusion fitted on a forestay and used to secure the luff of a sail by holding its bolt rope in place.

In sailboat racing, to disturb the wind of a windward boat by positioning your boat a bit ahead and to leeward. If done correctly, the disturbed air hitting the windward boat will slow it down, leaving it at a distinct disadvantage and causing it to tack ...

Anti-clockwise circular motion. Left-handed ropes are coiled down in this way.

A freight booking made by a skipper or freight forwarder to serve space but not actually having a specific cargo at the time the booking is made. Carriers often overbook a vessel by 10 to 20 percent in recognition that "windy booking" cargo will not act ...

A Short line used to attach one thing to another - a short rope or cord that secures or attaches an item onboard a boat, usually for keeping it attached to the boat

A sliding type of bearing having either rotating or oscillatory motion and in conjunction with which a journal operates. In a full or sleeve type bearing, the bearing surface is 360 degrees in extent. In a partial bearing, the bearing surface is less than ...

Measuring point for compressor acceptance test. Pressure before an orifice or nozzle, downstream of compressor discharge.

Artificial objects to supplement natural landmarks indicating safe and unsafe waters.

Guarantee issued by a bank to a carrier to be used in lieu of lost or misplaced original negotiable bill of lading.

Some governments require certain commodities to be licensed prior to exportation or importation. Clauses attesting to compliance are often required on the B/L.- Various types issued for export (general, validated) and import as mandated by government(s).

Cargo more than eight feet high which thus cannot fit into a standard container.

Is the suction pressure attained by an ejector or positive displacement vacuum pump at zero capacity with the suction absolutely blanked off.

The tendency of the strands of a line to fray out at the ends.

A mechanical cleat used to hold a line automatically. It uses two spring loaded cams that come together to clamp their teeth on the line, which is place between them.

(1) To float a vessel off the ways in a building yard after it is completed. (2) A small boat used to ferry people to and from a larger vessel.