Apollo 65 Guia do Utilizador descarregar pdf (Página 234)

Track (TRK): The imaginary line that the flight path

of an airplane makes over the earth.

Track Angle: The angle of your actual direction of

travel. Track angle is computed using the magnetic

variation at the Present Position.

Track Angle Error (TAE): The difference between

the Desired Track and the Track Angle (Dtk - Trk =

Tae). A letter is shown next to the Track Angle Error

value showing the direction of error in reference to

the current Track.

True North: Geographic north, at the earth’s north

pole.

Tower (TWR): Airport tower communication

frequency.

U UNICOM: The radio frequencies assigned to

aeronautical advisory stations for communication

with aircraft. Unicoms may provide such airport

information as active runway, wind direction and

velocity and other conditions of importance to pilots.

UTC (Universal Time Coordinate): Greenwich

Mean Time, or the time at the Prime Meridian in

Greenwich, England. Also referred to as Zulu time.

15-10

Glossary

WPT

FROM

WPT

North

Track Angle

Error (Tae)

Present

Po s i t i o n

TRK

DTK

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Apollo 65 Guia do Utilizador Página 234