It was a glider with a rocket, essentially. Apparently a lot of the test pilots liked it before they, well, died a death horrible enough that I don’t even feel that great wishing it on a nazi.

Edit: also it may have been the first aircraft to break the sound barrier, one of the test pilots maxed out the speedo and reported a noise that he thought was the rocket exploding.

If you know where you’re going, you don’t have to turn!