National Vocational Qualification.

Dining room facilities and kitchen for crew separate from the passenger dining room and kitchen.

The windward side (from where the wind is blowing).

Non-Transportation Use

A sailor's trunk; the intake between the ship's side and a sea valve.

To break loose from a mooring, anchor or docking.

A unit used to rate the performance of a solar photovoltaic (PV) cells, modules, or arrays; the maximum nominal output of a PV device, in Watts (Wp) under standardized test conditions, usually 1000 Watts per square meter of sunlight with other conditions, ...

Marine Cranking Amps: MCA The amount of amps a battery can deliver at 32°F.

A halo consisting of a faint white circle passing through the Sun and running parallel to the horizon for as much as 360

A construction element that inhibits termites from entering building foundations and walls.

The top of a mast.

Mobility Requirements Study

A sailing ship with three to five masts, all of them square-rigged except the after mast, which is fore-and-aft rigged.

The maximum repeated stress that can he endured by a metal without failure under definite conditions of corrosion and fatigue and for a specific number of stress cycles and a specified period of time.

Heating a ferrous alloy to a suitable temperature above the transformation range and then cooling in air to a temperature substantially below the transformation range.

Sixteenth-century term for a sea distance at which high land could be observed from a ship. Varied between 14 and 22 miles according to average atmospheric conditions in a given area.

Kilograms per square centimeter absolute.

See radar theodolite, radio direction-finder.

The direction to which a compass points. Magnetic north differs from true north because the magnetic fields of the planet are not exactly in line with the north and south poles. Observed differences between magnetic and true north is known as magnetic var ...

A refraction phenomenon similar to a parahelion, but occurring generally at a distance of 120