The Tiny Propeller That Made the Stuka Scream



The little propeller on each Stuka leg is not a generator: it drives a siren, an official noise device (Lärmgerät) whose pitch rises as the dive speeds up, at a cost of up to about fifteen miles per hour of drag.

Sources:
– Wikipedia (German) – Lärmgerät –
– Wikipedia – Junkers Ju 87 –
– RAF Museum – Junkers Ju 87 individual history (G-2, W.Nr 494083) –
– Australian War Memorial – Wind-driven propeller generator, REL/07037 –
– National Museum of the United States Air Force – Wind Generator fact sheet –

All 3D models and animation are made by hand in Blender by ExplainForge, except:
Pilot coveralls: elvs_male_coveralls_1 by Elvaerwyn (MakeHuman community), CC BY

source

42 Comments

  1. "Early planes?" almost all current commercial plane have RAT(Ram Air Turbine) to generate electric and hydralic power in emergencies – for example if the main engine flip out, which allows the crew to run the systems until they can do a restart. That Jericho trumpets were fitted to early JU87s to instil panic is hardly a secret, they were removed around Battle of Britain as they only worked on hapless civilians fleeing villages in the Basque country and in Belgium and France.

  2. My mother lived in Liverpool, which was often bombed.
    One night I asked her about the sounds the bombs made on the way down. She said that they made various screams that got closer and closer until going boom. I asked her if it was scary. She told me that she actually liked the noisy ones. It was the silent ones that scared her the most.

  3. I like the Stuka D-5 Variant, it swapped its 2x 7.92mm machine guns for 2x MG151 20x99mm cannons and was sometimes equipped with a pod under each wing each housing 2x more MG151 for a total of 6x 20mm.

  4. Udet wasn't a "stunt pilot turned general". He was a WW1 ace with 62 victories and the receipent of Imperial Germany's highest gallantry award – the Pour le Merite.

  5. the Stuka had an automatic pullout and manual airspeed brakes, but the pilot may blackout visually, So the Jericho Siren tells the pilot by sound his airspeed, so he can pull on the stick and control airbrakes while grey-out blindness.

  6. Also german fascists hang up killed children on electric posts to show they are the menace to occupied population, even to children. That were germans in ww2

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