I would use a three times profile and then buffer it by allowing a decel phase of taking 1 mile to lose 10kts of airspeed.So 300kts to say 210 kts i would allow 9 miles of decceleration.Obviously varied slightly with weight and wind as well,but rough rule of thumb worked for me on the A330 300.
Last edited by Iakklat; 9th October 2004 at 12:16.