Tragflügel mit Mitteln zum Verändern des Profils

摘要

An aerofoil 2, at least one section of the wing shell 4, on which local bulges 8 may be produced by deformation and which extends over a substantial part of the span of the wing, is provided as means to reduce ultrasonic shocks in the aft portion of the upper wing shell. The deforrnable section of the wing skin 4 is made of a fibre composite, the fibres of which are aligned orthotropically so that the wing skin has a low flexural strength in the direction of the wing chord and a high flexural strength in the direction of the span of the wing. Deformation may be eflected by a spannise arrays of lacks (26) (fig.2), bimorph elements, piezoceramic drives or memory elements. <IMAGE>