Dag Viking
ScanFlyer Mile High Club
Reference (ICAO report "Wake Vortex aspects of the Airbus A380 aircraft" 11/10/2005: T 13/3-05-0661.SLG) Preliminary data from A380 wake turbulence test are in, and it looks like Airbus predictions are totally outside the ball park with regards to the A380 wake. Flight test data shows that the A380 wake vortices will descend further and are significantly stronger at 1000ft (300m) below the generation altitude than for any other aircraft in its weight category (747 etc). On occasions the A380 wake vortices may descend 2000ft (600M) below the aircraft and pose possible passenger comfort issues, but not a hazard.
Initial ICAO guidance is as follows:
1) one additional min to be added to all separations, when the A380 is the leading aircraft.
2) Horizontal spacing on final approach to be no less than 10 NM between A380 and following aircraft.
3) vertical spacing to be no less than 2000ft when following behind the A380.
Den økte separasjonen i forhold til f.eks 744, gjør at gevinsten på slot-restricted flyplasser egentlig ikke blir noe å snakke om for totalantallet passasjerer. Selskapene med 388 blir vinnerene, siden de får pøst inn flere passasjerer. Andre selskaper og passasjerene i andre fly blir taperene, siden det blir enda mer forsinkelser på f.eks LHR.
Separasjon på 10NM er MYE. Etter f.eks 744 bruker man 6SM