Glossary

Bearing (BRG): The direction to any point, usually measured in degrees relative to true or magnetic north. The direction from your present position to your destination waypoint.

CCF: Final approach course Fix. This waypoint type is used when necessary to define a course to the FAF - all VOR DME approaches require a course fix waypoint. A code appended to a waypoint in the database that may not appear on a published map.

Circular Error Probable (CEP): As applied to GPS position fix accuracy, the radius of a circle inside of which there exists a 50 percent chance of being located.

Constellation: A group of stars or objects, such as GPS satellites, in the heavens.

Coordinates: Values for latitude and longitude that describe a geographical point on the surface of the earth.

Course: The planned direction of travel in a horizontal plane.

Course Deviation: A measurement of distance left or right from the desired course of travel.

Course Deviation Indicator (CDI): A graphic indicator of course deviation typically shown as a graduated horizontal bar with an icon indicating the deviation distance left or right of course.

Course Intercept: Similar to an arrival alert, arrival is related to a course or radial to a point. When flying an arc during an approach, the arrival alert is issued when the aircraft is 1 nm/100 kts of intercepting the inbound course. When Vector to Final is selected, or you are executing a procedure turn at the FAF, the course intercept alert occurs when the aircraft has a Track Angle Error ￿45° and the cross track deviation is ￿ 1 nm.

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