This De Havilland DHC-8-300 Dash 8 from Augsburg Airways (in Team Lufthansa colors) is correcting its approach to Hamburg on a windy afternoon. On the image above you can clearly see the flap-system extended on the trailing-edge of the wing. Flaps along the aft edge can be extended to increase the effective angle-of-attack of the wing for deflecting more airmass and thus creating lift when airspeed is low.