These are V1 rockets, that used the pulse jet rocket motor and flew akin to a cruise missile. The first cruise missile if you will. These caused
massive damage and the British tried all kinds of tricks to neutralise them. The most economical way they devised was to use balloons and large nets
anchored to the ground.
The V2 was a much larger much more dangerous device which the British could not counter because it was supersonic. Very similar to a ballistic
missile. In fact that was the precursor to the development of ballistic missile and modern rocketry in the US after we took Von Braun back to
posted on 18-9-2007
Oops, Thanks IAF, I edited the first post to show V1 instead of V2 (duh)