As Freeman Dyson (who was in operations research for the RAF during the
war, and was incidentally living in London during the heyday of the V-2)
At that time in London, those of us who were seriously engaged in the war were very grateful to Wernher von Braun. We knew that each V-2 cost as much to produce as a high- performance fighter airplane. We knew that the German forces on the fighting fronts were in desperate need of airplanes, and that the V-2 rockets were doing us no military damage. From our point of view, the effect of the V-2 program was almost as good as if Hitler had adopted a policy of unilateral disarmament...