are leading aerodynamics institute sagi made a crucial contribution to this project their experts produced a new concept for wing design. it has an altogether new profile for supercritical airfoils all of their work helps greatly improve the plane's aerodynamics in addition to this super critical design high wing aspect ratio on the wide reaching airplane is a further aerodynamic advantage but it's largely what the wings are made of champs . you can see a compass it wing books for the m c twenty one airliner it uses unique advanced technology what's called vacuum and fusion in a joint project between the main design an aero composite and the sukhoi companies design bureau on the russian side as well as. on the material supply side take from the us these materials and technologies have made it possible to improve the aerodynamic characteristics of the wing reduce its weight and as a result increase the airplane fuel efficiency by up to twelve percent of the. awful lot of parts that have to fall into place for a passenger plane to break into the cutthroat commercial market but the m c twenty