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ASAS & Business Aviation

ASAS & Business Aviation. ASAS-TN2, PARIS Workshop April 14th 2008. Business Aviation Specificities. CRUISE OPERATIONS BusJets operate mostly above airliner traffic Large BusJets operates at high altitude (at and above FL 410)

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ASAS & Business Aviation

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  1. ASAS & Business Aviation ASAS-TN2, PARIS Workshop April 14th 2008 SL2008-13 ASAS TN2 Workshop 080414.ppt

  2. Business AviationSpecificities • CRUISE OPERATIONS • BusJets operate mostly above airliner traffic • Large BusJets operates at high altitude (at and above FL 410) • Low density traffic, with possibility to operate on free routes in climbing cruise mode • Possibility to develop a unique sector all over Europe • BusAv operate in all classes and types of airspace in the world • TERMINAL AREAS & AIRPORTS • Operations from local airports • BusJets operate from short runways (a Falcon 7X lands on a 4000 ft runway) • Most of these TMAs are Class G airspace and so not controlled • Safety of operations is a real concern • Operations from Hubs • BusAv must "adopt a low profile" • Development of wake vortex free approaches SL2008-13 ASAS TN2 Workshop 080414.ppt

  3. Business Aviation Wishes • THAT ALL AIRSPACE BE “MANAGED” • ATC role is essential for the safety of operations • But ATC must move from a "control of the airspace" to a "management of the airspace" • Pilot must be in a position to "avoid collision" • Collision avoidance no longer based on "see & avoid" but on systems and technology • Aircraft "separation & collision avoidance" based on safety objectives • No longer based on the applications of operational rules • THE SOLUTIONS • ADS-B everywhere • ADS-B "primary means of surveillance" to allow development of ASAS • ADS-B adapted to the airspace : 1090ES, but also UAT (local airport) and may be VDL4 • ATC Management of airspace • Location of all objects in the air (all flying machines equipped with position reporting device) • "Virtual remote tower" where there is no physical tower to manage the operations • Dynamic management of approaches & take off airspace areas UAT : Universal Access Transceiver SL2008-13 ASAS TN2 Workshop 080414.ppt

  4. Business AviationSpecific ASAS Needs • GENERAL REMARKS • Has to be considered as additional needs compared to Air Transport ones • BusAv specific ASAS needs are mainly relative to "low aircraft density airspace" • High altitude, Remote area, Local airport TMAs • ROLES OF ATC & PILOTS • ATC manages the airspace • Determines the "potential conflicts", separates the aircraft and delegates "basic separation" • ATC delegates the separation each time the pilot is in a better position to perform separation • In term of workload, in term of situation awareness (climbing cruise) • The ASAS mode can be defined as "Cooperative Self Separation" ASAS one • Pilot assures the safety of the separation & collision avoidance • In cruise pilot controls the separation (horizontal vertical and vortex) and avoid collision (TCAS) • In local TMA pilot makes a combination of surveillance, separation & collision avoidance SL2008-13 ASAS TN2 Workshop 080414.ppt

  5. Cessna 172 Skyhawk Cockpit SL2008-13 ASAS TN2 Workshop 080414.ppt

  6. NTS 000 62.5 nm 08:00 11 44 Z X1 5 SEPARATION F7X F-WIDE 3 nm 03:30 ASAS Symbology ADS-B will provide : An accurate position of the Intruder The Track of the Intruder The Ground Speed of the Intruderand so the intruder relative course F M S 1  The vertical location of the Intruder and its trend Appropriated route change might be proposed to the pilot ASAS : Airborne Separation Assistance System ADS-B : Automatic Dependance Surveillance Broadcast SL2008-13 ASAS TN2 Workshop 080414.ppt

  7. Modes & Symbology • RELATIVE MODE DISPLAY • Allows a permanent monitoring of the intruder trajectory • Adapted to "one to one separation", but allows detection of intruders in course collision • SPECIFICITY OF CLIMBING CRUISE • Above FL 410 minimum separation is 2000 ft • In climbing cruise there is altitude variations due to temperature and or wind gradients • Above FL410, aircraft separation based on altitude must be avoid • WAKE VORTEX FREE APPROACHES • Corresponds to a "4D" LPV (4°5) approach with a runway threshold shift (up to 6000 ft) • The pilot will monitor the preceding using the ASAS display : • Will check aircraft separation SL2008-13 ASAS TN2 Workshop 080414.ppt

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