Purple colours indicate cruising altitudes. White colours indicate the plane is on the ground. As a plane takes off, the colours change from white, to yellow, to green, to light blue, to dark blue and finally to purple.
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On the map a coloured line shows the route of the aircraft. Purple colours indicate cruising altitudes.White colours indicate the plane is on the ground. As a plane takes off, the colours change from white, to yellow, to green, to light blue, to dark blue and finally to purple.
Our most asked question on social media: “What do the blue planes mean?” Blue planes indicate aircraft are being tracked by satellite-based ADS-B receivers.
On the map a coloured line shows the route of the aircraft. Purple colours indicate cruising altitudes.White colours indicate the plane is on the ground. As a plane takes off, the colours change from white, to yellow, to green, to light blue, to dark blue and finally to purple.
Blue: Aircraft displayed as blue icons are currently being tracked via satellite. Satellites are collecting the ADS-B signals from aircraft and transmitting them to the Flightradar24 network. Space-based ADS-B tracking will be used to supplement our terrestrial receiver network.
SQUAWKing is the process of communicating between the air and the ground, the process is essential for keeping planes in the air safe and ensuring a smooth and manageable air traffic control process, both for pilots and air traffic controllers.
The callout from the pilots like LOC blue serves to remind themselves of the current flight guidance modes, and to maintain awareness of mode changes. This is also to ensure that their mental idea of what the aircraft will do next is up to date and fits to the current flight situation.
A discrete transponder code (often called a squawk code) is assigned by air traffic controllers to identify an aircraft uniquely in a flight information region (FIR). This allows easy identification of aircraft on radar.
In most cases, our receiver network is no longer receiving a signal from the aircraft. This tends to be more common when an aircraft is flying over large bodies of water. It can also be a technical problem somewhere. FR24 has not a global coverage.
Flightradar24 Support centerThe numbers are in meters. If the aircraft is below 100 meters in altitude, the trail will be white. If it is above 100 meters, the trail will be yellow, and with an increase in altitude, will be green, and so on.
Under no circumstances should a pilot of a civil aircraft operate the transponder on Code 7777. This code is reserved for military interceptor operations.
“Squawk 1234” means to just dial 1234 into your transponder. The ATC radar will show the controller that number in the tag associated with your plane. If the tell you, “squawk 1244 and ident”, you should put in the code first, and then press and release the Ident (or ID) button on the transponder.
Aircraft must fly over residential areas because of the small distances between some airports and neighborhoods. Therefore, it is sometimes necessary for aircraft to fly over these residential areas in order for aircraft to safely reach the airports.
CODE RED is used by the flight attendants to alert fellow crew members that a passenger is experiencing cardiac arrest and to grab certain medical equipment.
The Aviation Colour Code (ACC) system is based on four colours and is only intended for use by the civil aviation community. The Aviation Colour Codes provide the aviation community with information about volcanic activity and the potential presence of volcanic ash in the atmosphere.