AIRFOIL SURFACE OF ULTRALIGHT AIRCRAFT Russian patent published in 1994 - IPC

FIELD: aviation technique. SUBSTANCE: ribs 3,4,5,6,7 are mounted on longerons 8,9 with possibility of motion along them. Guiding sleeves, that may have spherical surface, are mounted in through openings of the ribs 3,4,5,6,7. Ends of the longerons 8,9 and the terminal rib 7 are provided by fixing members for mutual fixation. The soft skin 1 is made of a cloth, whose weft and warp filaments are inclined by the same angles relative to a plane of the ribs 3,4,5,6,7. EFFECT: enhanced serviceability due to possibility of folding a skin over a period of transportation or storage. 5 cl, 10 dwg