> without anything more complicated than slide rule The V2 was quite complex for it's time. It had two gyroscopes, an accelerometer and an analog computer to r

> without anything more complicated than slide rule The V2 was quite complex for it's time. It had two gyroscopes, an accelerometer and an analog computer to reach the target. As always, wikipedia knows more: http://en.wikipedia.org/wiki/V-2_rocket#Technical_details http://en.wikipedia.org/wiki/V-2_rocket#Technical_details