The twin-engined one is reminiscent of the Beriev MDR-5, but it ain't it. Could it be the plane that beat the MDR-5 in production, the Chyetverikov MDR-6? I don't have a picture of this plane, just some info (not much!)
Those three tails and inline engines ring some bells. I know I've got something on it, probably in Technical Gen in a 1950's RAF Flying Revue magazine in the bottom of a trunk somewheres.