A promising direction of development of the aircraft is to develop design concepts that combine the use of closed-circuit security and adapt the design to the flight mode. The transition from traditional monoplane scheme of the aircraft to the circuit closed wing is accompanied by both positive changes in the characteristics (reduction of empty weight of 16%, lower specific fuel consumption by 7%) and negative (decrease aerodynamic efficiency averaged 4%), which, together, it is at high potential for komplekssnogo improve aircraft performance. Use of active and passive adaptation structure provides additional gain in weight and design characteristics. The method of synthesis of spatial curved axis of the closed wing, reducing the weight of the power set of longitudinal wing compared to the embodiment with a straight axis by 15-20%, and the deformation of the wing by 25-35%. The possibility of controlling deformation of the structure through the use of shape memory materials, in particular by varying the elastic modulus.