The flying-wing concept-chances and risks

Abstract

Aeronautical specialists are continuously searching for new technical solutions increasing the efficiency of aviation technology. One of possible directions in improving the aerodynamic efficiency of an aircraft is a decrease in the area of the configuration components not involved in producing the lift. This effect is realized when a flying-wing concept is used [1-3]. The theoretical and experimental investigations of a flying-wing aircraft and its main characteristics (aerodynamics, strength, control systems, etc.) carried out at TsAGI have revealed that application of the proposed concept for highcapacity aircraft makes it possible to increase lift-todrag ratio by 20-25% and reduce direct operating costs by 7-8% against conventional aircraft of equal capacity. The flying-wing feasibility is at the level of advanced projects of conventional configurations. Studies on the peculiarities of passenger accommodation within a wide cabin are of great importance. © 2003 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.