Flytec 6015 * Manuel d'utilisateur télécharger pdf (Page 20)

Operation Manual Flytec 6015-GPS 18

3.2.1 Track and Bearing

Track is the direction into which an aircraft is moving over ground. The geographic true North

is always 0 or 360 degrees. (East = 90 ; South = 180 ; West = 270 Grad)

Bearing is the direction (according to the system described above) to a selected Waypoint seen

from the viewer.

Geschwindigkeit

Speed

Peilung

Bearing

Distanz

Distance

Kurs

Track

Kursabweichung

Crosstrack error

Kurs Linie

Course

WP 1

WP 2

Caution: Track or Tracklog

is also called the sequence of recorded positions during one flight.

3.3 Waypoints and Coordinates

A waypoint is any single point on the earth’s surface that you would like to go to.

The 6015-GPS can save up to 200 waypoints. Each name of a waypoint can have up to 16

characters, e.g.:

"Fiesch Airfield". In determining the waypoint, it is also necessary to enter the

altitude, e.g.: "1123" meters (always above sea level). Now we only need the position of Waypoint

on the earth’s surface. For this purpose the 6015-GPS uses the geographical map system named

WGS84 (World Geodetic System 1984).

This reference system assumes that latitude is measured

from the equator to the North Pole, 90 ° N, and to the South Pole - 90 ° S. Longitude is measured

from the Greenwich zero meridian (near London), East is counted positive and West is negative

up to +/-180°.

In Basic Settings / Coordinate Format the data entry format is selectable between:

1) degrees minutes decimal places of minutes (dd°mm.mmm) (factory setting)

2) degrees minutes seconds (dd°mm’ss“)

3) degrees decimal places of degrees (dd.ddddd)

Basically one should always try to use possibility no. 1 (=factory setting), because only this format is

using exactly the same calculation format as the GPS receivers do. With all the other formats rounding

errors could sum up to 20 m.

It is exclusively calculated with the WGS84 system. Differing geodetic systems are no longer

selectable.

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Flytec 6015 * Manuel d'utilisateur Page 20

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