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theoretically, if the lift and gravity at every point on the wing are exactly offset, it can be achieved by making an airplane out of paper, but this is impossible in practical applications because the weight has already crushed the paper skin.
however, this shows that a flying wing with no fuselage but only wings is the right direction, based on theoretical understanding and practical experience, the famous elliptical wings of the british spitfire fighter being a good example. this design idea can theoretically infer that a circular flying wing is the ideal design, especially in the absence of a fuselage.
in terms of theoretical application, elliptical wings have been widely used, such as the b-2x47b elliptical wing developed by the us air force. the design concept of this elliptical wing is to reduce wingtip flow and optimize lift distribution, which can effectively reduce resistance and improve flight efficiency.
the flying saucer is another idealized design. the canadian avrocar was also designed by the us air force. both designs reflect the pursuit of flight control and bring new breakthroughs to flight.
in order to solve the problem of wingtip flow, designers have also explored some new solutions, such as winglets. this technology uses the structure of the wingtip to prevent wingtip flow by extending upward and downward. in terms of design, winglets can effectively reduce drag and weight and increase lift.
however, during the design process, various factors need to be weighed, such as flight control, aircraft structure, and efficiency. ultimately, the best design solution needs to be adjusted according to specific circumstances.
