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One of the fundamental problems preventing commercial transport aircraft from supersonic flight is the creation of strong shock waves. Here, a biplane concept is proposed that will enable a significant reduction of shock waves: Introduce a second wing nearly parallel to the conventional wing, creating a biplane configuration. The interaction between the two wings will cancel or reduce the shock waves created by the individual wings. Several simple two-dimensional biplane configurations are currently under study, using CFD (computational fluid dynamics) codes, Euler calculations for inviscid flow analysis and inverse-problem analysis for wing design, to demonstrate our biplane concept.

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