TIL The infamous sound German JU-87 dive bombers made while in a dive is due to a siren installed on the plane, and not just the sound of the plane diving on a bomb run.

Specifically designed to terrify, and doing its job terrifyingly well

Bluejavel

Just like Harley-Davidson, making more noise that it needs.

I_Mix_Stuff

I heard that the sirens grew to be very counter productive later on in the war, as it let the soviets know the exact location the stukas were coming from.

20BensonLikeAGoodLad

Psychological warfare

jbartix

My dad said this and katyusha rockets gave him nightmares for years.

Cool_Cartographer_39