Which are in active service today? Regardless, the US beat Russia to that too: https://en.wikipedia.org/wiki/Collins_X-112 https://en.wikipedia.org/wiki/Colli

Which are in active service today? Regardless, the US beat Russia to that too: https://en.wikipedia.org/wiki/Collins_X-112 https://en.wikipedia.org/wiki/Collins_X-112 oorah!