This is but one project that was under way before the end of WW2. Designed by KURT TANK (who went on to work in Argentina after the war and designed the Pulqui jet fighter). Avery advanced type for it's year! (The Colonel)

What might have been !

Kursk Battle (ПРИСЕКИН Н.С. Диарама «Курская битва». 1995)

Kursk

Hi Neutral. Here's another one for you! This intriguing project foreshadowed the American F-82 Twin Mustang in some ways, being a doubling of an existing design to yield higher performance and load carrying ability. With the advent of the jet engine though piston engined aircraft such as this were already being rendered obsolete .(The Colonel)