In Russia, a utility model has been devised for an aircraft with an unusual configuration, in which lift is generated not only by the wing, but also by the fuselage itself. The patent has already been registered in the official FIPS database.
The authors proposed designing the aircraft according to a tandem-triplane configuration. The fuselage will have side protrusions to which wings located at different heights are attached.
The middle wing is designed in a high-wing configuration, while the tail wings are in a low-wing configuration and positioned one below the other. One of the tail wings was made fully movable.
The key feature is the shape of the fuselage and the air intake. The lower surface under the cockpit was thickened and inclined toward the incoming airflow, while the upper surface was equipped with a prism-shaped air intake. It directs air straight into the engines mounted above the cockpit.
After leaving the engines, the flow enters a special duct formed by the fuselage surfaces and an inclined wall. Due to the Coanda effect, the jet attaches to the surface, reduces pressure above, and creates additional lift. As a result, the fuselage begins to function as an aerodynamic element rather than a passive “tube.”