EUROCAE ED SAFETY AND PERFORMANCE REQUIREMENTS STANDARD FOR AIR TRAFFIC DATA LINK SERVICES IN CONTINENTAL AIRSPACE. f) performance requirements specified in Section of the EUROCAE. Document ED incl. change 1 & 2. ATC Communications Management service. EUROCAE ED Safety and Performance Requirements Standard For Initial Air Traffic Data Link Services In Continental Airspace (SPR IC).

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Procedural control is used in areas oceanic or land which do not have radar. The deployment of FANS-1 de-120 originally justified by improving route choice and thereby reducing fuel burn.

Boeing also extended the range of aircraft supported to include the Boeing and HF radio communication involves contacting an HF operator who then transcribes the message and sends it to the appropriate ATC service provider. Non-FANS procedural separation uses Inertial Navigation Systems for position, flight crew voice reports of position and time of next waypointand High Frequency radio for communication.

Positive control is used in areas which have radar and so is commonly referred to as Radar control. This involves the transition from voice reports based on inertial position to automatic digital eurofae.

They can select from a set of messages and send communications to the airplane.


A peer application exists on the ground for the Air Traffic Controller. The controller can also set up a deviation contract, which would automatically send a position report if a certain lateral deviation was exceeded. The application is known as ADS-C automatic dependent surveillance, contract.

The HF radio operator can also be saturated with requests for communication. Commercial aircraft operators typically get their long haul fleet connected and have dedicated personnel to monitor and maintain the satellite and ground link while business aircraft and military aircraft operators contact companies like AirSatOne to commission the system for the first time, conduct functionality testing and to provide ongoing support.

These procedures reduce the number of airplanes which can operate in a given airspace. The final report was released in with a plan released in Because of the deterministic nature of the GPS satellites constellation geometrythe navigation systems can calculate the worst case error based on the number of satellites tuned and the geometry of those satellites. The controller “sees” the airplanes in the control area and uses VHF voice to provide instructions to the flight crews to ensure separation.


The members include airframe manufacturers, eurocse suppliers, communication service providers, and air navigation service providers. Separation standards are what determine the number of airplanes which can occupy a certain volume of airspace. This allowed other application improvements. Air traffic eurcoae ability to monitor aircraft was being rapidly outpaced by the growth of flight as a mode of travel.

eurocae ed 120 pdf download

All other airspace users must be ICAO compliant. These trials erocae the potential benefits to the airlines and airspace managers. This makes a huge difference in airspace capacity. This involved a transition from voice communications to digital communications.

The INS systems have error introduced by drifting after initial alignment. During ev-120 trials, airplanes installed applications in their ACARS units which would automatically report positions. Since this time, other regions have initiated FIT groups. The voice quality of the connection is often poor, leading to repeated messages. Boeing worked with the airlines to develop a standard which would control the interface between FANS-capable airplanes and air traffic service providers.

This method uses time-based procedures to keep aircraft separated. The separation standard is determined by the accuracy of the reported positions, frequency of position reports, and timeliness of communication with respect to intervention.

This also introduced the concept of eurcoae navigation performance ANP. So, the improvement not only provides the airplane with a much more accurate position, it also provides an alert to the flight crew should the actual navigation performance exceed the required ed-20 performance RNP.

Eurocae ed-120 pdf

This is because the air traffic controller can recognize problems and issue corrective directions to multiple airplanes in a timely fashion.


In an effort to improve aviation communication, navigation, surveillance, and air traffic management ICAO standards for a future system were created, this integrated system is known as the Future Air Navigation System FANS and allows controllers to play a more passive monitoring role through the use of increased automation and satellite based navigation.

These contracts are set up between ATC and the aircraft’s systems, so that the flight crew has no workload associated with set-up. If market demand uerocae airlines to operate at the same time on a given route, this can lead to eurocea congestion, which is handled by delaying departures or separating the airplanes by altitude.

The development of the FANS-capable aircraft systems proceeded simultaneously with the ATC ground system improvements necessary to make it work.

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It was followed by the first commercial flight from Sydney to Los Angeles on June The FANS concept was developed to improve the safety and efficiency of airplanes operating under procedural control.

This allows the flight crew to select from a menu of standard ATC communications, send the message, and receive a response. The current standard for message delivery is under 60 seconds one way. The communications include air traffic control clearances, pilot requests and position reporting. This was based on the early ICAO technical work for automatic dependent surveillance ADS and controller—pilot data link communications CPDLCand implemented as a software package on the flight management computer of the Boeing In this system, an air traffic controller can set up a “contract” software arrangement with the airplane’s navigational system, to automatically send a position report on a specified periodic basis — every 5 minutes, for example.

The Future Air Navigation System FANS is an avionics system which provides direct data link communication between the pilot and the air traffic controller.