Line attached to the bottom of the boom used to flatten the sail by pulling the boom down, and thus tightening the luff of the sail. (2) A line used for hauling down a jib or staysail.

Old expression for the engraving of the wind-rose on charts.

An order to hold a vessel on the course she is heading.

A floatation device shaped like a U and thrown to people in the water in emergencies.

Passing another vessel.

Temporarily placed longitudinal bulkheads used to prevent bulk cargo from shifting.

(1) Shallow water. (2) An underwater sand bar or hill that has its top near the surface.

A certificate issued by the U.S. Department of Agriculture to satisfy import regulations of foreign countries; indicates that a U.S. shipment has been inspected and found free from harmful pests and plant diseases.

An order to make haste.

Document listing all personal goods of crew members.

Estimated account

The rotating element of a machine and, in the case of a compressor, is composed of the impeller (impellers) and shaft, and may include shaft sleeves and a thrust balancing device.

An expression of surprise or unbelief, as when a ship strikes a rock or shoal so hard that her timbers shiver.

Long-range navigation system that uses radio signals transmitted at specific times. An onboard receiver computes position by measuring the difference in time of signal reception. This system is being phased out in favor of GPS.

The maximum power required by a given compressor when operating at a (1) constant discharge pressure with variable intake pressure, or (2) constant intake pressure with variable discharge pressure.

Bank that opens a straight or negotiable letter of credit and assumes the obligation to pay the bank or beneficiary if the documents presented are in accordance with the terms of the letter of credit.

Cruising in shallow water and spending the nights in coves.

The state of a vessel when she is so loosened as to droop at each end.

The tackle used for running guns in and out.

The ship that carries an admiral's flag.