[freebeard]

en.wikipedia.org/wiki/Blackburn_Buccaneer#Boundary_layer_control

Boundary layer control

A depiction of the Buccaneer, the blowing slots visible on the leading edges, flaps, and horizontal stabiliser are highlighted; these aerodynamic features contribute to the Coandă airflow over the wing

In order to dramatically improve aerodynamic performance at slow speeds, such as during takeoff and landing, Blackburn adopted a new aerodynamic control technology, known as boundary layer control (BLC). BLC bled high-pressure air directly from the engines, which was "blown" against various parts of the aircraft's wing surfaces and horizontal stabiliser. A full-span slit along the part of the wing's trailing edge was found to give almost 50% more lift than any contemporary scheme.[46]

In order to counteract the severe pitch movements that would otherwise be generated by use of BLC, a self-trimming system was interconnected with the BLC system, and additional blowing of the wing's leading edge was also introduced. The use of BLC allowed the use of slats to be entirely discarded in the design.[46]

Also highlighted is the split-tail air brake.