![](https://www.historynet.com/wp-content/uploads/2021/07/Soviet-swept-wing-German-design-EF-140.jpg)
The capture of Wocke along with much of the tooling and even a prototype of the German jet led to the production of a look alike EF-140. The proposed reconnaissance aircraft flew a number fo times but was ultimately unsuccessful because of severe wing flutter. (National Archives)