Bring back the biplane? Chinese researchers eye old design for hypersonic flight

https://www.rt.com/news/417499-china-hypersonic-plane-design/

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Chinese researchers have proposed a new design for hypersonic aircraft that could reintroduce the biplane to modern aviation.

In a scientific article published by Science China Press, four Chinese researchers propose the creation of a “high-pressure capturing wing” (HCW), which could be used to help aircraft with large volumes achieve hypersonic speeds.

Using a biplane-like design, the hypersonic craft’s lower wing would serve as a common compression surface, while its upper wing would serve as the HCW – acting as a kind of supersonic surfboard that would help increase the plane’s lift.

The Chinese researchers created a scaled test model of their revolutionary design, confirming that a two-winged craft offers opportunities for aerodynamic performance improvement.

The authors believe their present study will promote further research in the aerodynamic design of high-speed aircraft, which may ultimately lead to the development of a new class of hypersonic planes.

READ MORE: China tests hypersonic glide weapon as US footprint in Asia Pacific grows

Biplanes – fixed-wing aircraft with two wings stacked one above the other – were among the first kind of planes to take to the skies. The Wright Flyer, the first successful powered aircraft, was a biplane. The biplane configuration became largely obsolete by the late 1930s.

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