A system of aids to navigation in which the shape, color, and number distinction are assigned in accordance with location relative to the nearest obstruction. The cardinal points delineate the sectors for aid location. The cardinal system is partic- ularly applicable to a region having numerous small islands and isolated dangers. In the LATERAL SYSTEM, used in United States waters, the aids are assigned shape, color, and number distinction as a means of indicating navigable waters.

Related Terms

SAFETY CONTROL

Device to stop unit, equipment or system if unsafe pressure and/or temperatures and/or dangerous conditions are reached.

AGGLOMERATION

The potential of the system for particle attraction and adhesion.

REMOTE REFRIGERATING SYSTEM

Refrigerating system in which condensing unit is away from space to be cooled.

REFRIGERATING CAPACITY

The ability of a system to remove heat as compared with the cooling effect produced by melting of ice.

ADIABATIC PROCESS

A thermo-dynamic process in which no heat is extracted from or added to the system of the process.

RUNNING TIME

Amount of time an unit, equipment or system is run per hour or per 24 hours.

ACID CONDITION IN SYSTEM

Condition in which refrigerant or oil in a system, is mixed with vapor and fluids that are acidic in nature.

GULF STREAM SYSTEM

A system of ocean currents comprised of the Florida Current, the Gulf Stream, and the North Atlantic Current.

GRID TRACK

The direction of the track relative to grid north

HELIOCENTRIC

Relative to the sun as a center

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