magnetic course


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magnetic course

[mag′ned·ik ′kȯrs]
(navigation)
Course relative to magnetic north, with the compass course corrected for deviation.

magnetic course

magnetic course
Magnetic compass.
magnetic courseclick for a larger image
The direction of the longitudinal axis of an aircraft in flight measured clock-wise from magnetic north. It is the heading indicated by a magnetic compass after correcting for deviation.
References in periodicals archive ?
where [psi] is magnetometer determinate value of magnetic course, but [phi] is true value of magnetic field angle.
Corrected course can be determined by summing measured value of magnetic course [psi] with compensation value for course [phi] calculated from GPS data [[psi].sub.GPS].
The FAA uses grid and magnetic courses for approaches north of approximately the Arctic Circle, but all other published FAA courses are still referenced to magnetic north.
Slight differences in displayed magnetic courses are not a significant issue because GPS units are direct-to devices.
A caveat is that occasionally the magnetic course on an en route chart will differ slightly from the track value necessary to hold the desired course.
The GPS calculates the magnetic course by conjuring the great circle route based upon the lat/long value of two VORs, and then adds the local magnetic variation at the aircraft's present position.
Likewise, a minor amendment could change charted magnetic courses due to magnetic variation since the ground track remains the same.