Abstract: A flap system along the trailing edge of a transonic aircraft wing which system includes segments arranged in span direction, a driving system for protraction and retraction of the segments includes a plurality of spindle drives connected to the segments such that each segment is connected to at least two spindle drives; are controlled the spindle drives in such a manner that at least some of the drives are independently controlled from each other so that the segments can pivot on vertical axes, in addition to a regular pivoting about respective horizontal axes.

Abstract: A flap arrangement for an aircraft wing having along its trailing edge independently actuated high lift flap and spoiler. During cruising the flap is used for camber line curvature control while the spoiler is controlled in a follow up configuration such that a gap between the spoiler and the high lift flap does not form.