Saw on the History Channel the story of how the Soviets copied the american B-29. Three bombers were interned and Tupolov the designer waw ordered to copy them. WI Tupolov designed another bomber rather than the TU4. Let's say he talked Stalin out of the copy. The TU4 it issaid could NEVER reach the west coast of US. What would the rplacement be? BTW-what bombsight did they use- a copy of the Norden? Thought that personell were given STRICT orders to destroy the bombsight on threat of capture.