Flytec 6040 * - Manual (Page 29)

Operation Manual FLYTEC 6040 GPS
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3.2 Compass and flight direction
In contrast to a standard magnetic compass which is oriented to the
magnetic lines of force of the Globe, the GPS compass can show
direction only when the user moves about.
However, it has the advantage that it is not subject to any grid
deviation and does not show any deviation as a result of iron or any
magnetic material either. Its zero point always corresponds with true
geographic north (0 or 360 degrees).
The course, that is the flight direction (= Track), is calculated from a
series of positions. If the user remains stationary at the same
location, then the course (track) and compass needles are undefined.
The exact course, (this is the direction in which the user travels over
ground), is always at the top of the compass, but can also be read in
the display Track. When circling in a thermal the compass rose only
appears to turn; in reality the needle does not move; it’s the casing
along with the aircraft, which moves around the rose.
3.2.1 Track and Bearing
Track is the direction into which an aircraft is moving over ground. The geographic true
North direction is always 0 or 360 degrees. ( East = 90 ; South = 180 ; West = 270 degr. )
Bearing is the direction (according to the system described above) to a selected Waypoint seen from
the viewer
Caution: Track or Tracklog is also called the sequence of recorded positions during one flight.
WP 2
WP 1
Kurs Linie
Course
Kursabweichung
Crosstrack error
N
Kurs
Track
Distanz
Distance
Peilung
Bearing
Geschwindigkeit
Speed
3
3
4
4
2
m
P1
N E
S W
m/s 2
MC