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Cheranovski BICh-22 / Che-22
BI Cheranovski developed between 1947 and 1948 a set of novel designs, among which a new glider stands out that returned to the old “Parabola” scheme, but this time introducing the leading edge with variable angle of incidence. This glider was developed in the bureau of experimental constructions of the Moscow Aviation Institute, where Cheranovski worked at that time, and it became known as BICh-22 (Russian Черановский БИЧ-22) or Che-22 from the new Soviet designation system.
The BICh-22 was conceived as a single-seater experimental glider and featured a flying wing configuration. A scale model was built and studied in the wind tunnel of the Moscow Aviation Institute. The results of these tests showed good stability and validated the new shape.
The wing had a leading edge with variation in the angle of incidence and was made up of a short, parabolic centroplane to which the tapered trapezoidal wing consoles were attached. Vertical empennages were located on the wingtips (although in one of the project’s configurations these empennages were eliminated). The trailing edge of the consoles and the center plane featured control surfaces along the entire span. The ailerons were located on the consoles, while the elevator rudders were attached to the centroplane.
The wing profile was designed by the builder himself. The closed cockpit for the pilot was located in the central area of ​​the centroplane, covered frontally by an oval and transparent cover that ended in an aerodynamic drop-shaped fairing.
The entire glider was made of wood with plywood and calico coating and its weight reached only 60 kg.
In 1948 the Che-22 prototype was built in the MAI workshops which was successfully tested and certified.
On 17 July 1949 during an air show at Tushino the flyover, among the aircraft was the Che-22, piloted by IA Petrov.
Cheranovski and Pilot Petrov
After some flight tests, the Central Committee of the DOSAV (Society for Cooperation with Aviation), placed an order with the OKB of Cheranovski to build a small series of 10 Che-22 gliders. At the end of 1949 in the DOSAV workshops in the Moscow suburb of Chornoye an accident occurred during a flight of the Che-22, killing the test pilot IA Petrov. Development work on the glider series was cancelled.
The prototype provided the theoretical basis for the development of more advanced models powered by ramjets and turbo jets.
Che-22 (BICh-22)
Wingspan: 7.50 m
Wing area: 14.03 m²
Length: 5.04 m
Height: 0.93 m
Empty weight: 60 kg
Glide ratio: 18-1
Accommodation: 1

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