Details have emerged regarding the creation of the unique composite wing for the MS-21 aircraft. The so-called "black" element is built using vacuum infusion technology — dry carbon materials are "grown" inside a giant mold, impregnated with resin under vacuum.
The main feature of the technology is the minimal number of seams and joints. Unlike aluminum structures, the composite wing is monolithic, which reduces the weight of the structure and improves aerodynamics.
Yakovlev added that it is the extended composite wing that helps the MS-21 reduce air resistance and save fuel.
The idea of making a composite wing was laid down from the beginning, and the calculation paid off: the wing and empennage turned out to be all-composite.
Aviation expert Roman Gusarov explained to "Pervy Tekhnichesky" that the current modest range of the MS-21 at 3800 km is not the limit of its capabilities. The aircraft is yet to follow the path of the Boeing 737, which increased its flight capabilities during modernization.
One of the reasons for the current flight range of the MS-21-310 is said to be overweight wings. However, aviation expert and blogger SkyExpert refuted this point of view.
