An empty wine bottle after its contents have been drunk.

An officer taking his turn as officer of the watch.

Power as calculated from compressor-indicator diagrams.

Sailing close hauled. Sailing toward the wind as much as possible with the wind coming from the bow.

A float with a flag at the top of a pole. Used to mark a position such as for a mooring, a race or a man overboard.

Used for sending messages to outside companies. Messages are transmitted via Western Union, ITT and RCA. Being replaced by fax and internet.

The energy in foot pounds required to compress polytropically and to transfer one pound of a given gas from one pressure level to another.

Customs form permitting in bond cargo to be moved from one location to another under Customs control, within the same Customs district. Usually in motor carrier's possession while draying cargo.

The oxidation of conventional hydrocarbon lubricants when they reach the end of their useful life and begin to breakdown. Can cause operating temperature increase, increase brake horsepower and plugs separator, can destroy air end.

The conversion of mechanical, electrical or magnetic energy into heat.

Measure of alkalinity or acidity in water and water containing fluids. Can be used to determine the corrosion inhibiting characteristic in water based fluids. Typically, pH > 8.0 is required to inhibit corrosion of iron and ferrous alloys in water based f ...

A rope attached to the clew of the foresail and rove through a block on the swinging boom. Used for guying the clews out when before the wind.

Filled with water but afloat.

An additional keel secured outside the main keel, usually as protection in the event of grounding.

A suspension of fine solid or liquid particles in a gas.

To attach a line to something so that it will not move.

The drying of compressed gases other than air. Equipment size, choice of materials and other specifications may be decidedly different for drying gases other than air because of the specific properties of the gases. Properties include specific gravity, sp ...

Sailing other than close; hauled or into the wind (wind astern).

Dangerously steep and breaking seas due to opposing currents and wind in a shallow area.

Measuring point for compressor acceptance test. Distribution pressure (headers).