Russian airframer Irkut has taken delivery of the first composite wing panel structure for the MC-21 single-aisle twinjet.
The structure for the starboard wing has been developed by AeroKompozit using vacuum infusion and carbon lay-up processes.
AeroKompozit is completing work on similar panels for the port wing, says Irkut.
Irkut says it is currently installing various systems in the assembled fuselage of the initial MC-21 airframe.
First flight of the MC-21 is due to take place before the end of this year. The jet will be powered by Pratt & Whitney PW1400G or Aviadvigatel PD-14 engines.