China Tests Design for Giant Integrated-Wing Aircraft Capable of Carrying 800+ Passengers

Chinese researchers have developed and wind-tunnel tested a model of a massive integrated-wing passenger aircraft, a design that could revolutionize air travel by potentially carrying more than 800 people. This experimental concept, developed by the China Aerodynamic Research and Development Center (CARDC), represents a significant departure from conventional aircraft design.

Unlike traditional planes that separate the fuselage, wings, and tail, the integrated-wing design incorporates a substantial portion of the aircraft's body into the supporting structure. Researchers believe this configuration can significantly enhance aerodynamic efficiency. The model tested boasts an 85-meter wingspan and a 43-meter length, with a wing area of approximately 1,395 square meters, designed for a cruising speed of Mach 0.8.

The CARDC team tested a 1:52 scale model, about 80 centimeters long with a 1.6-meter wingspan, in a transonic wind tunnel. The tests focused on aerodynamic performance, stability, and structural deformation at speeds between Mach 0.4 and 0.8. The model achieved a maximum lift-to-drag ratio of around 20 at speeds below Mach 0.7. Researchers suggest this design could lead to greater aerodynamic efficiency, extended range, and reduced energy consumption.

This integrated-wing concept aligns with a global trend, with companies like the U.S.-based JetZero exploring similar designs, though on a smaller scale. China is also reportedly considering a similar integrated-wing cargo aircraft capable of carrying 120 tons over a distance of 6,500 kilometers, though this remains conceptual. The CARDC has a history of involvement in major Chinese aviation programs, including the C919 commercial jet and the Y-20 transport aircraft, and is also developing the wide-body C929 long-haul jet.