Compass course

Compass course
Tags: FAA Pilot's Handbook
Compass course. A true course corrected for variation and deviation errors.

Compass course. A true course corrected for variation and deviation errors.
Compass locator. A low-power, low- or medium-frequency (L/MF) radio beacon installed at the site of the outer or middle marker of an ILS.

COMPASS COURSE - A bearing as indicated by the horizontal angle between the compass needle and the centerline of the aircraft. A Compass Course is equal to a True Course ± variation and deviation; also equal to a Magnetic Course ± deviation.

Compass Course. The angle between the: longitudinal axis of an aeroplane and the compass needle, measured clockwise from the compass needle between 0 degrees and 360 degrees.

Confirm heading indicator is set with compass course and heading bug set
Verify altimeter setting and FAF altitude
Confirm altimeter bug is set for glide slope altitude at FAF
Review place as to when missed point is reached and when to turn to where ...

In comparing his computed course with the course actually indicated by passing over these landmarks the rule should be made that, in case of doubt when a landmark is not distinctly recognized, take the compass course; ...

The compass heading or compass course (7) has to be corrected first for deviation (the "nearer" error), wherefrom results the magnetic heading (8). Correcting this for variation yields true heading (2).

runway is numbered based upon its magnetic or compass orientation; every heading assigned by air traffic control (ATC) is given based upon magnetic course; and every airway, jetway, or other predefined route segment is assigned a compass course.

See also: Compass, Range, Bearing, Course, Speed