Patent ID: 8025253
Filing Date: 2011-09-27
Classification: B64C

Abstract:
1. A commercial aircraft comprising: a fuselage, a main deck, a lower deck, an energy-absorbing deformation structure, wings, main landing gears, landing gear bays, and bottom longeron spars, wherein the fuselage comprises a lateral overall diameter of a wide-body aircraft, wherein at least one passenger cabin is provided on the lower deck, and wherein the energy-absorbing deformation structure is arranged underneath the lower deck cabin, wherein the wings are arranged on the fuselage in accordance with a high wing configuration, wherein the main landing gear are arranged each on one side of the fuselage, the main landing gears each being accommodated in a landing gear bay such that each landing gear bay extends partially outside of the fuselage, wherein the bottom longeron spars extend in a longitudinal direction of the fuselage and reinforce the fuselage in the region of cutouts formed by the landing gear bays, wherein the landing gear bays are spaced apart from one another laterally by a distance that is defined by the position of the bottom longeron spars, wherein a corridor is formed between the bottom longeron spars in the region of the cutouts formed by the landing gear bays, and wherein lower deck infrastructure areas selected from the group consisting of stairs, an on-board kitchen, a toilet and general services areas are located in the corridor between the bottom longeron spars in the region of the cutouts formed by the landing gear bays, wherein the deformation structure comprises an aerodynamically shaped external composite shell, the interior of which contains energy-absorbing elements, wherein the deformation structure is arranged outside on the fuselage and wherein the energy-absorbing elements of the deformation structure extend inward as far as the longeron spars of the lower deck.