Page 24 - PPL-engelsk 2025
P. 24

Air Law


                IAS (Indicated Air Speed)

                IFR (Instrument Flight Rules)


                Overtaking Aircraft – An aircraft approaching another aircraft from behind at
                an angle of less than 70 degrees measured from the length axis of the overtaken

                aircraft.

                Interception  –  A  military  action  against  an  aircraft,  usually  aimed  at

                determining its identity.

                Clearance – Permission to perform air traffic operations in accordance with the

                specific conditions issued by an air traffic control unit.

                Controlled Aerodrome – An aerodrome where air traffic control services are

                provided for aerodrome traffic.


                Controlled Flight – Any flight for which a clearance has been issued.

                Critical  Phase  –  A  collective  term  for  uncertainty  phase,  alert  phase,  and

                emergency phase.

                MSL (Mean Sea Level)

                Emergency Phase – A situation where there is reasonable certainty that an

                aircraft  and  its  occupants  are  in  serious  and  imminent  danger  and  require

                immediate assistance. Code designation DETRESFA.

                RCC (Rescue Coordination Centre) – A unit responsible for organizing search

                and rescue services and coordinating search and rescue operations within a

                search and rescue region.

                TIA  (Traffic  Information  Area)  –  A  non-controlled  airspace  created  in

                conjunction with a TIZ, extending upwards from a defined boundary above the

                earth's/water's surface to a defined upper boundary.

                Service  Hours  –  The  period  during  which  a  public  aerodrome  provided

                aerodrome and traffic services.

                TMA (Terminal Control Area) – A control area created in connection with an

                aerodrome.


                Uncertainty Phase – A situation where there is uncertainty about the safety of

                an aircraft and its occupants. Code designation INCERFA.



           Flight Theory PPL(A)(UL)/LAPL             Henning Andersen, Midtjysk Flyveskole© 2025           24
   19   20   21   22   23   24   25   26   27   28   29