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From: Charles Lindbergh <spirit@stlouis.com>
Newsgroups: alt.binaries.pictures.aviation
Subject: Re: Junkers Ju 87 (Stuka)
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Date: Wed, 20 Jul 2016 15:26:39 +0000
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On Wed, 20 Jul 2016 08:55:26 +0200, Rene <dont@bother.com> wrote:
>On 12 Jul 2016 08:29:13 -0700, Miloch <Miloch_member@newsguy.com>
>wrote:
>
>>https://en.wikipedia.org/wiki/Junkers_Ju_87
>>
>>The Junkers Ju 87 or Stuka (from Sturzkampfflugzeug, "dive bomber") was a German
>>dive bomber and ground-attack aircraft designed by Hermann Pohlmann and first
>>flew in 1935. The Ju 87 made its combat debut in 1937 with the Luftwaffe's
>>Condor Legion during the Spanish Civil War. It served the Axis forces in World
>>War II.
>>
>
>A beautiful series!
>
>I am very curious how those psycholochical warfare sirens actually
>worked ("Trumpets of Jericho")
>I know the were driven by small propellors in the slipstream; I have
>seen several photos of these units, but I fail to see how the actual
>noise is made.
>All I can see is a ram air propeller on a smooth tube without obvious
>holes for sound emission.
>Does anybody have an exploded view or such of the internals of these
>parts?
>
>Just a curious mind that wants to know how such small devices could
>make so much noise!
I think this is a better picture.
http://static.rcgroups.net/forums/attachments/2/1/3/5/2/4/a4380467-193-Stuka-Siren.jpg
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