Re: space technology from the Third Reich.
>Early rocketry tech perhaps....
Early or not it took decades for the US (and others) to equal or beat the technology in the A4 (V2) Particularly tricky bits were the high speed fuel/oxidizer pumps and the combustion chamber/nozzle and its cooling systems. Until SpaceX turned up we've not done anything much in the US since the ULA's rockets use motors purchased from Russia.
Biting the hand that feeds IT
