Depending on which authority you're flying over, the Global (5000, Express and XRS) can do a "clean" takeoff. Normally we use slats and 6 degrees of flap. Calculation for the clean takeoff is convoluted so they're almost never done.
I imagine that a major limiting factor is the tyre speed. Too fast and they delaminate.
Last edited by welliewanger; 13th Sep 2012 at 04:17.