It was sufficient to say you've got no idea about the Soviet space program (which benefited the most from Nazi tech), no need for long posts. Soviet rocketry w

It was sufficient to say you've got no idea about the Soviet space program (which benefited the most from Nazi tech), no need for long posts. Soviet rocketry was demonstratively, intentionally, in-your-face domestic, those low ranked Peenemunde engineers were sent home as soon as they helped to build R-1 which was a verbatim copy of V-2 indeed (US got much more from Nazis, namely the best engineers and actual V-2s and equipment and tech). For example practicaly everything in R-7, maybe except for the vague idea of the hydrogen peroxide gas generator to drive the turbopump, was novel at the time. In particular the control system, telemetry, aerodynamic modeling, material science, and both types of the hot separation mechanism. That was entirely intentional. What they got from Nazis more or less verbatim, was namely radars (later improved on and perfected) and electronic measurement equipment tech. Not nuclear weapons (part of the tech was later stolen by Fuchs and other commie sympathizers from US, but was used to control the scientists results, not directly as a base, so it didn't speed anything up). And especially not nuclear power tech.