Flytec 6040 * Bedienungsanleitung PDF herunterladen (Seite 29)

Operation Manual FLYTEC 6040 GPS 27

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

Kurs

Track

Distanz

Distance

Peilung

Bearing

Geschwindigkeit

Speed

m/s

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Flytec 6040 * Bedienungsanleitung Seite 29