The of the photos of the Soviet K-7 bomber are real. The rest are are graphics supposedly rendered from old Soviet designs. The enormous craft allowed placing the load in the wings of the aircraft- a flying wing. The airplane was tested in tunnel of wind in 1928 and the archetype initiated in 1929. The ratios were gigantic for the time - 53m of spread of wing, with about 452 square meters of surface.
More About the Kalinin Cassete