The Junkers Ju 87 was a German dive bomber that was used in World War II, primarily used for precision bombing. lt was a large aircraft for its intended role, and had a crew of two. (Pilot + Tail gunner) The most terifying feature of the Stuka was its siren. As the Stuka dived towards its target, it made a high pitched screaming noise, that often stunned people to the point where they just stood there and watched. However, by the Battle of Britain, most Stuka units had the sirens removed from the aircraft to reduce drag.