What is the best wing shape for supersonic flight?
The Lockheed tests, however, determined that the most efficient shape for high-speed supersonic flight was a very small, straight, mid-mounted, trapezoidal wing. The elliptical wing was decided upon quite early on. Aerodynamically it was the best for our purpose because the induced drag, that caused in producing lift, was lowest when this shape was used; the ellipse was an ideal shape, theoretically a perfection.An elliptical planform is the most efficient aerodynamic shape for an untwisted wing, leading to the lowest amount of induced drag.
Is a supersonic flying wing possible?
The problem becomes more acute at supersonic speeds, where the drag of a thick wing rises sharply and it is essential for the wing to be made thin. No supersonic flying wing has ever been built. Supersonic aircraft have poor lift/drag ratios at subsonic speeds as compared to subsonic aircraft (unless technologies such as variable-sweep wings are employed), and hence burn more fuel, which results in their use being economically disadvantageous on such flight paths.
Which wing would fly best at supersonic speeds?
Delta wings are a wing configuration typically used in military aircraft due to their suitability for subsonic and supersonic aircraft flight when paired with jet engines. Most jet fighters of the period used a swept-wing or delta-wing, which balanced aerodynamic performance, lift, and internal space for fuel and equipment. The Lockheed tests determined that the most efficient shape for high-speed supersonic flight was a very small and thin, straight, mid-mounted, trapezoidal wing.Swept Wings, characterized by their rearward angle from the fuselage towards the tips, are a defining feature of high-speed aircraft designed for transonic and supersonic flight. This design reduces aerodynamic drag and delays shock wave formation, enhancing performance and efficiency at high speeds.US fighter jets commonly use a trapezoidal wing design because it offers outstanding flight performance. The trailing edge of the wing sweeps forward while the leading edge sweeps back. The delta wing is not even close to efficient at all speeds. It is most efficient at high speeds.
Why delta wing for supersonic?
Supersonic aircraft typically feature airfoils with t/c around 3%–6%. This poses multiple challenges for the wing structure. The delta wing’s large root chord provides substantial structural thickness that allows landing gear and fuel to be accommodated as well. Aircraft designed for sustained supersonic flight inevitably have much higher sweepback angles than subsonic airplanes; the best planform shape for supersonic flight approaches a classic “Delta” shape.