The direction of the track relative to magnetic north.



Related Terms

NORTH

The primary reference direction relative to the earth; the direction indicated by 000° in any system other than relative. True north is the direction of the north geographical pole; magnetic north the direction north as determined by the earth’s magnetic compass; grid north an arbitrary reference direction used with grid navigation.

COMPASS TRACK

The direction of the track relative to compass north

GRID TRACK

The direction of the track relative to grid north

MAGNETIC AMPLITUDE

Amplitude relative to magnetic east or west.

SHADOW PIN

A small rod or pin used to cast a shadow on an instrument, such as a magnetic compass or sun compass, to determine the direction of the luminary; a GNOMON.

MAGNETIC LINES OF FORCE

Closed lines indicating by their direction the direction of magnetic influence.

LINE OF FORCE

A line indicating the direction in which a force acts, as in a magnetic field

VIBRATING NEEDLE

A magnetic needle used in compass adjustment to find the relative intensity of the horizontal components of the earth’s magnetic field and the magnetic field at the compass location. Also called HORIZONTAL FORCE INSTRUMENT.

CUTTING SPEED

The speed of relative motion between the tool and workpiece in the main direction of cutting. Also known as feed rate; peripheral speed.

ELECTROMAGNETIC WAVES

Waves of associated electric and magnetic fields characterized by variations of the fields. The electric and magnetic fields are at right angles to each other and to the direction of propagation. The waves are propagated at the speed of light and are known as radio (Hertzian) waves, infrared rays, light, ultraviolet rays, X-rays, etc., depending on their frequencies.

Related questions

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