İndicator- something which shows information Descend

Definitions

Radar altimeter-Aircraft equipment that makes use of the reflection of radio waves from the ground to determine the height of the aircraft above the surface.

İndicator- something which shows information

Descend-to lose altitude, usually in a planned manoeuvre

Visibility- the ability to see unlighted objects by day and lighted objects by night, subject to atmospheric conditions

Altitude- the vertical distance between an aircraft, or a point, or a level.

İndependent-free from the influence or effects of other people or things

Reflect- to throw back something such as radio waves

Frequency- the number of times or the rate at which something happens in a given period of time