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AAS 1.06 DATALINK APPLICATIONS – THE USE OF LOGICAL ACKNOWLEDGEMENT (LACK)

There are situations present within the ATN CPDLC SARPs in which the use of LACKs is necessary to have the system perform in an operationally acceptable way. However, the deployment of such systems as FANS 1/A does not utilise this … Continued

AAS 1.19 OPERATIONAL USE OF DOWN-LINK AIRCRAFT PARAMETERS (DAPS)

Many parameters are available from Mode S, ADS-B UAT (Universal Access Transceiver) and ADS-B ES (Extended Squitter) i.e. (Mach number, indicated airspeed, vertical speed, heading etc.) There are no provisions about how or if there a need to check them … Continued

ADME 2.15 CONDITIONAL CLEARANCES TO RESCUE AND FIREFIGHTING VEHICLES

In an emergency situation, controllers are always required to use professional judgement and experience to determine the best course of action. Sometimes this causes conflict with rules and regulations that might, in those circumstances, be unfit for purpose. All controllers … Continued

ATS 3.16 THE USE OF SAFETY NETS IN ATM

The use of safety nets within the ATM system has been established for many years. The scope of safety nets has extended to be not only airborne based but ground based as well. There is a move to extend their … Continued

ATS 3.32 RECATEGORIZATION OF AIRCRAFT FOR WAKE TURBULENCE

In recent years, there have been a number of initiatives to review and update the wake turbulence categories defined by ICAO and the corresponding state variations. IFATCA Policy is: Any aircraft wake turbulence recategorisation shall: Conduct appropriate safety assessments, including … Continued

COM 4.8 RTF PHRASEOLOGY IN CIVIL/MILITARY INTEGRATION

In the interests of safety and knowledge that everyone can understand exactly what is being asked of them it is important for military aircrew and civil controllers to be sure of others’ intentions. This is particularly true when the military … Continued

Policy Review AAS 1.8 – 4D Trajectory Concepts / Management

56TH ANNUAL CONFERENCE, Toronto, Canada, 15-19 May 2017 WP No. 91 Policy Review AAS 1.8 – 4D Trajectory Concepts / Management Presented by TOC Summary This paper reviews the status and validity of two provisional IFATCA policy statements on 4D … Continued

Virtual Centres – Review ATS 3.15 Functional Blocks of Airspace

56TH ANNUAL CONFERENCE, Toronto, Canada, 15-19 May 2017 WP No. 84 Virtual Centres – Review ATS 3.15 Functional Blocks of Airspace Presented by PLC and TOC Summary The worldwide patchwork of FIRs and associated ANSPs is a cause of operational … Continued

Investigate interactions between Traffic Collision Avoidance System and Mode S

44TH ANNUAL CONFERENCE, Melbourne, Australia, 17-22 April 2005 WP No. 86 Investigate interactions between Traffic Collision Avoidance System and Mode S Presented by TOC Introduction 1.1 The carriage of a functioning Mode S transponder is a basic requirement for any … Continued

Study the Virtual Tower Concept

45TH ANNUAL CONFERENCE, Kaohsiung, Taiwan, 27-31 March 2006 WP No. 90 Study the Virtual Tower Concept Presented by TOC Introduction 1.1. This work study is related to the “Remote Aerodrome Control Concepts” paper presented in Melbourne last year. 1.2. This … Continued