To hold the mainsail or jib off to the side to cause the wind to blow onto the backside of the sail, used to slow a boat

(1) The metal present in the largest proportion in an alloy; brass, for example, is a copper-base alloy. (2) An active metal that readily oxidizes, or that dissolves to form ions. (3) The metal to be brazed, cut, soldered, or welded. (4) After welding, th ...

The amount of heat given off by a person at rest in a comfortable environment; approximately 50 Btu per hour (Btu/h).

Where

To produce a zinc-iron alloy coating on iron or steel by keeping the coating molten after hot dip galvanizing until the zinc alloys completely with the base metal.

A letter of credit that contains a limited engagement clause which states that the issuing bank promises to pay the beneficiary upon presentation of the required documents at its counters or the counters of the named bank.

On the deck (not over it - see ALOFT)

A pressure-operated switching device used in a radiosonde. In operation, the expansion of an aneroid capsule causes an electrical contact to scan a radiosonde commutator composed of conductors separated by insulators.

The title of a commander of a fleet or a subdivision of it.

The ratio of light output of a fluorescent lamp operated on a ballast to the light output of a lamp operated on a standard or reference ballast.

Any small enclosed space in which unwanted items are stowed when clearing up decks.

A sunshine recorder of the type in which the time scale is supplied by a chronograph. It consists of two bulbs, one of which is blackened, which communicate through a glass tube of small diameter. The tube is partially filled with mercury and contains two ...

In the direction of the vessel's head. Wind ahead is from the direction toward which the vessel's head points. In a forward direction.

Reinforced cringles or thimbles in the sail designed to hold the reefing lines when reefing the sail.

A recording anemoclinometer.

An instrument for measuring electrical current in amperes.

An instrument designed to measure quantities of heat. Sometimes used in meteorology to measure solar radiation.

A rain gauge which indicates but does not record the amount of precipitation captured.

Placing a port on a vessel's itinerary because the volume of cargo offered at that port justifies the cost of routing the vessel.

The captain of the ship.