The main advantage of new structure was using of RTM (Resin Transfer Moulding) method, allowing, according preliminary calculations, cut cost of flap’s manufacturing.
A simplified prototype of a product was made and tested to confirm existing conception. These tests confirmed that proposed conception was correct.
At the initial project phase 14 flap’s structure concepts were proposed by the cooperated team and there were also a number of optional solutions on some of the concepts, of which 3 were selected as advanced solutions for further development. At the last stage the concept of ECAR was chosen by the Customer as the most perspective and reasonable.