In the 1930's the Soviet Union had an intensive research program exploring the use of rockets for military use. Its most famous product was the Katyusha
salvo rocket launcher (aka. the "Stalin Organ").
A less well known item was the BI-1 rocket fighter (first flight was in May 1942), which rivalled the German Messerschmitt Me 163 "Komet". However, only a small test series was built. In WWII, the Soviet Air force had more pressing needs than a point-defence interceptor against strategic bombers.
has more information about the original.
This is an upscaled version of my 1/300 scale model. I have thinned the wings and control surfaces, but no other details have been added.