A winglet comprising first and second covers 20, (22, figure 2) and a mid spar 28 between front and rear spars 24, 26. Each spar is joined to the first and second covers. The mid spar has an I-shaped cross-section comprising a mid spar web (29, figure 5) a first pair of mid spar caps (29a, 30a), joining the mid spar to the first cover, and a second pair of mid spar caps (29b, 30b) joining the mid spar to the second cover. The mid spar curves along all or part of its length. A winglet cover assembly is disclosed with a cover and a spar formed from fibre reinforced composite material. The cover and spar(s) may be provided by co-infusing preforms with a matrix material and bonded by co-curing the matrix material. The spar and/or mid spar may follow a three dimensional curvature, twisting along its length.
Winglet and winglet cover assembly
2022-02-02
Patent
Elektronische Ressource
Englisch
IPC: | B64C AEROPLANES , Flugzeuge / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |