Blended wing body aircraft design

 Blended wing body aircraft design




                                  Yeh more aircraft capacity then conventional aircraft

The BWB form minimises the total wetted area - the surface area of the aircraft skin, thus reducing skin drag to a minimum. It also creates a thickening of the wing root area, allowing a more efficient structure and reduced weight compared to a conventional craft. NASA also plans to integrate Ultra High Bypass (UHB) ratio jet engines with the hybrid wing body.




Potential advantage

A conventional tubular fuselage carries 12-13% of the total lift compared to 31-43% carried by the centerbody in a BWB, where an intermediate lifting-fuselage configuration better suited to narrowbody sized airliners would carry 25-32% for a 6.1% - 8.2% increase in fuel efficiency

Advantage

Significant payload advantages in strategic airlift, air freight, and aerial refueling roles
Increased fuel efficiency – 10.9% better than a conventional widebody,[8] to over 20% than a comparable conventional aircraft.[10]
Lower noise – NASA audio simulations show a 15dB reduction of Boeing 777-class aircraft,[11] while other studies show 22–42 dB reduction below Stage 4 level, depending on configuration.

Industrial scope

The BWB airframe merges efficient high-lift wings with a wide airfoil-shaped body, allowing the entire aircraft to generate lift and minimize drag. This shape helps to increase fuel economy and creates larger payload (cargo or passenger) areas in the center body portion of the aircraft














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