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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During these trials, airplanes installed applications in their ACARS units which would automatically report positions. Aircraft are operated using two major methods; positive control and procedural control. The final report was released in with a plan released in The application is known as ADS-C automatic dependent surveillance, contract.

These trials demonstrated the potential benefits to the airlines and airspace managers.

Organisation européenne pour l’équipement de l’aviation civile — Wikipédia

The purpose rurocae this team is to monitor the performance of the end-to-end system, identify problems, assign problems and assure they are solved. This makes a huge difference in airspace capacity. Separation standards are what determine the number of airplanes which can occupy a certain volume of airspace. This involved a transition from voice communications to digital communications. This allowed other application improvements. Because the position of the aircraft is updated frequently and VHF voice contact timely, separation standards the distance by which one aircraft must be separated from another are less.

The current standard for message delivery is under 60 seconds one way.

Previously, flight crews would be notified of the system being used to calculate the position radios, or inertial systems alone. The latter can lead to very inefficient operation due to longer flying times and increased fuel burn. These contracts are set up between ATC and the aircraft’s systems, so that the flight crew has no workload associated with set-up. Procedural control is used in areas oceanic or land which do not have radar. A peer application exists on the ground for the Air Traffic Controller.

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


Eurocae ed-120 pdf

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

The INS systems have error introduced by drifting after initial alignment.

This allows the flight crew to select from a menu of standard ATC communications, send the message, and de-120 a response. In an effort to improve aviation communication, navigation, surveillance, and air traffic management ICAO standards for a future ehrocae 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.

They can select from a set of messages and send communications to the airplane. 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 This involves a transition from inertial navigation to satellite navigation using the GPS satellites. The HF radio operator can also be saturated with requests for communication. The voice quality of the connection is often poor, leading to repeated messages.

Boeing also extended the range of aircraft supported to include the Boeing and The FANS concept was developed to improve the safety and efficiency of airplanes operating under procedural control. If market demand pushes airlines to operate at the same time on a given route, this can lead to airspace congestion, which is handled by delaying departures or separating the airplanes by altitude.

In this system, an air traffic controller can set up a “contract” software arrangement eurpcae the airplane’s navigational system, to automatically send a position report on a specified periodic basis — every 5 minutes, for example. The separation standard is determined by the accuracy of the reported positions, frequency of position reports, and timeliness of communication with respect to intervention.


The deployment of FANS-1 was originally justified by improving route choice and thereby reducing fuel burn. This method uses time-based procedures to keep aircraft separated.

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So, the improvement not only provides the airplane with a much more accurate position, it also provides an alert eurcae the flight crew should the actual navigation performance exceed the required navigation performance RNP. Boeing worked with the airlines to develop a standard which would control the interface between FANS-capable airplanes and air traffic service providers.

Positive control is used in areas which have radar and so is commonly referred to as Radar control. It was followed by the first commercial surocae from Sydney to Los Angeles on June 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 communications include air traffic control clearances, pilot requests and position reporting.

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.

The members include airframe manufacturers, avionics suppliers, communication service providers, and air navigation service providers. All other airspace users must be ICAO compliant. Air traffic control’s ability to monitor aircraft was being rapidly outpaced by the growth of flight as a mode of travel.

The controller can also set up a deviation contract, which would automatically send a position report if a certain lateral deviation was exceeded.

This also introduced the concept of actual navigation performance ANP. This is because the air traffic controller can recognize problems and issue corrective directions to multiple airplanes in a timely fashion.

This involves the transition from voice reports based on inertial position to automatic digital reports.