a high - lift system on a wing of an aircraft is provided . the wing includes a right - hand and a left - hand wing half with movably held high - lift flaps and the right - hand and left - hand wing half are attached to an aircraft fuselage , thus forming a wing root . each wing half in a region in close proximity to the wing root , includes a drive unit . in each case this drive unit is joined to a transmission shaft mechanically connected to the respective drive unit , which transmission shaft extends from the drive unit in the direction of the end of the respective wing half and is designed to mechanically move the high - lift flaps arranged in the respective wing half . by means of such an arrangement it is possible to do without deflection gear arrangements from a central drive unit to the individual wing halves .