Yeah, the Soviets really built one of these! Ciamosław Ciamek has created a model of this obscure and fascinating piece of engineering history. Designed by Boris Ushakov in the 1930s, then tested in the 1940s, the project unfortunately never seemed to "take off," and was cancelled in 1953. However, with today's technology, it's possible that someone may revisit the concept. That would be wicked!