MC-21's 'Black' Wing vs Boeing and Airbus: Which Technology Reigns Supreme

The Russian-made MC-21 aircraft has been making waves in the aviation industry due to its unique 'black' wing, which features composite power elements manufactured using vacuum infusion without autoclave curing. In contrast, the Boeing 787 and Airbus A350 use automated prepreg layup with subsequent autoclave curing.

According to a comparison of five key parameters - production cost, weight and strength, part size and integration, serial production, and technological complexity - neither technology emerges as an absolute winner. The MC-21's vacuum infusion process offers potential savings on equipment and materials, but requires high precision tooling and control over resin supply.

The Boeing 787 and Airbus A350 rely on a mature production base and the widespread use of prepreg in aircraft construction. However, this method also has its drawbacks, such as strict storage temperature conditions for prepregs to prevent premature resin curing.