Future air navigation system update#
Future air navigation system manual#

A TSO-177 compliant CVR will be required to meet this capability.

The world aviation authorities see the text messages sent between the cockpit and ATC as voice communications, and as such are required to be recorded on the CVR.

There are multiple equipment upgrades required including FMS, GPS, Datalink, potentially Satcom and the CVR.

Currently, STCs will be required to equip aircraft for FANS for multiple reasons: Because of this, there will be no single equipment solution to cover FANS.

AC 20-140A - gives guidance for design approvalįor those of us who have spent more than just a couple of days working on aircraft, we know there are wide variances in the equipment installed on aircraft.

AC 120-70B - gives guidance for operational authorization.

There are two main FAA advisory circulars to give guidance for FANS installations:

ICAO produced two main documents in this effort, the Global Operational Data Link Document or GOLD and the Fans Operating Manual or FOM.

It is now commonly referred to as FANS-1/A. FANS 1 was originally developed by Boeing, and later adopted by Airbus (FANS A). This council studied the technologies available and applied them to develop new concepts for future air navigation systems or FANS. In the early 1980s, the International Civil Aviation Organization (ICAO) developed a council to investigate ways to increase safety in aviation. Reduction of separation minimums between aircraft longitudinally and laterally.Reduction in the amount of frequencies required for aircraft ATC communications.This Emergency Contract is automatically triggered by the MAYDAY message.ĬPDLC - Controller Pilot Data Link Communication refers to the messages and responses sent from ATC and the flight crew. There is a fourth type of contract, but unlike the previous three it is initiated and cancelled by the pilot, not the controller. This does not affect an existing contact preset rate.

Demand Contracts - ATC can request a one-off update as needed.Event Contracts - Communicated if there is a change in Vertical Rate, Lateral Deviation or Altitude.Periodic Contracts - ATC can set or alter the update rate as needed (a higher update rate is usually required in high traffic areas).Following is a description for each of the three types of Contracts: There can be up to five separate ATC contracts at any one time. The Contract in ADS-C means that ATC will control the reporting system. There are two parts to FANS: ADS-C and CPDLC.ĪDS-C – Automatic Dependent Surveillance ContractĪutomatic Position Reports are known as ADS-C and require no pilot interaction. FANS 1/A uses an early version of protocol that has been used for 15 years by the airlines. FANS 1 was originally developed by Boeing and later adopted by Airbus (FANS A). You can think of this like texting, only in this case ATC and the flight crews are using text messages to replace many of the voice communications that are traditionally used.įuture Air Navigation System (FANS)-1/A is a format of communication for CPDLC. FANS 1/A – CPDLC is one of the many components of NextGen and will play an integral part in many aspects of future systems.ĬPDLC or Controller Pilot Data Link Communication is a means of communication between controller and pilot, using data link for Air Traffic Control (ATC) communication. One of the biggest changes is the FAA’s vision of the future of national airspace management and control called NextGen. The world’s aviation community is currently changing.

Future Air Navigation System (FANS) September 2011

Future air navigation system manual#

Future air navigation system update#