An aircraft component, such as a wing, has perforations through an outer
wall for boundary layer suction. In the space between the outer wall and
an inner wall partition walls form pressure channels and suction channels
that are adjacent to each other and alternate, which channels communicate
with the perforations. For example, alternating channels may be formed by
a corrugated structure having trapezoidal corrugations providing a larger
area for the suction channels than for the pressure channels. The
pressure channels may be coupled to a hot-air reservoir by a control
device, lines and valves, and the suction channels may be coupled to a
vacuum reservoir, unless a short-circuit valve is used to cross connect
the lines.