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  3. Minimum safe altitude warning - Wikipedia

    en.wikipedia.org/wiki/Minimum_Safe_Altitude_Warning

    Minimum safe altitude warning (MSAW) is an automated warning system for air traffic controllers (ATCO). It is a ground-based safety net intended to warn the controller about increased risk of controlled flight into terrain accidents by generating, in a timely manner, an alert of aircraft proximity to terrain or obstacles.

  4. Jeju Air Flight 2216 - Wikipedia

    en.wikipedia.org/wiki/Jeju_Air_Flight_2216

    Jeju Air initially said that the crashed aircraft was not involved in any prior incident, but data from the Korea Airports Corporation showed that in February 2021, the aircraft was damaged when its tail struck the runway during takeoff from Gimpo International Airport in Seoul, for which Jeju Air was fined 2.2 billion won ($1.5 million) by the ...

  5. SELCAL - Wikipedia

    en.wikipedia.org/wiki/SELCAL

    In international aviation, SELCAL or SelCal is a selective-calling radio system that can alert an aircraft's crew that a ground radio station wishes to communicate with the aircraft. SELCAL uses a ground-based encoder and radio transmitter to broadcast an audio signal that is picked up by a decoder and radio receiver on an aircraft. The use of ...

  6. Low-level windshear alert system - Wikipedia

    en.wikipedia.org/wiki/Low-level_windshear_alert...

    Arriving aircraft on descent, generally within six nautical miles of touchdown will fly within this low level, maintaining a glide slope and may lack recovery altitude sufficient to avoid a stall or flight-into-terrain if caught unaware by a microburst. LLWAS microburst alerts are issued for greater than 30 knot loss of airspeed at the runway ...

  7. Missile approach warning system - Wikipedia

    en.wikipedia.org/.../Missile_approach_warning_system

    Light aircraft, helicopters, and fighters usually have limited space and mass capacity for additional equipment. The system may also cause adverse aerodynamic drag which demands minimal physical size and number of boxes. The power consumption must further be kept within the capacity of the platform's electrical system.

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  9. Transponder (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Transponder_(aeronautics)

    When ground-based radar equipment [9] receives the IDENT bit, it results in the aircraft's blip "blossoming" on the radar scope. This is often used by the controller to locate the aircraft amongst others by requesting the ident function from the pilot, e.g., "Cessna 123AB, squawk 0363 and ident". [6] [7]