How to make a real life size stuka siren - Aircraft of World War II

SA80 · 01-09-2009, 08:14 AM

Could any one help me does anyone know the workings of the stuka siren i know it was propeller driven and went under the wing not much else thow.
How did it work? is it a simple design? does any one have blue prints? thanks very much for reading SA80

Colin1 · 01-09-2009, 08:59 AM

Wasn't the 'Jericho Horn' simply a variation on the air raid siren theme?
The air raid siren being hand-cranked and the variation in pitch provided by simply hand-cranking it faster?

Mounted on the Ju87, the manual drive was replaced by a suitable alternative, a small propeller driving the unit instead; the variation in pitch here being provided by the Ju87's increase in speed as its dive progressed.

I've an idea Doppler Effect would have been instrumental here, too, particularly if you were the position (or close to the position) being targetted.

Colin1 · 01-09-2009, 04:25 PM

Hi
home from work
This is about the best I could find in my library, it names the parts but rather unhelpfully, it doesn't point the names at anything although it's mainly self-explanatory.

Hope this helps

fly boy · 01-09-2009, 05:51 PM

thats what those are i thought it was to power lights

GrauGeist · 01-09-2009, 08:05 PM

There's a "brake" or more closely, a clutch, that keeps the siren mechanism from sounding until the drive brakes are released. As soon as the drive brakes are retracted, the Jerico Trumpet disengages.

As I posted in another thread regarding this, sometimes the brake didn't reset, and the pilot had to listen to the thing all the way back to base...

By the way, awesome detail image, Colin!

Colin1 · 01-10-2009, 04:36 AM

Quote:

Originally Posted by GrauGeist

sometimes the brake didn't reset, and the pilot had to listen to the thing all the way back to base...

By the way, awesome detail image, Colin!

Well, at least they'd know he was coming and could put the kettle on for a nice, soothing cup of tea...

Stuka Ju87
Alex Vanags-Baginskis
Illustrations by Rikyu Watanabe
Jane's Publishing Company Limited
ISBN: 0 7106 0191 3

I have to say I agree with you, Mr Watanabe is a master illustrator, as he is in the rest of the series.

Sadly, as is the case with so many other aircraft book series (Ian Allen 'at war' series springs to mind), they're out of print; they do crop up here and there in online book communities and on eBay every now and again.

01-09-2009, 08:14 AM	#1
SA80 Junior Member Join Date: Jan 2009 Posts: 1	How to make a real life size stuka siren Could any one help me does anyone know the workings of the stuka siren i know it was propeller driven and went under the wing not much else thow. How did it work? is it a simple design? does any one have blue prints? thanks very much for reading SA80

01-09-2009, 05:51 PM	#4
fly boy Senior Member Join Date: Jan 2008 Posts: 855	thats what those are i thought it was to power lights __________________

01-09-2009, 08:05 PM	#5
GrauGeist Senior Member Join Date: Aug 2008 Location: Redding, California Posts: 3,970	There's a "brake" or more closely, a clutch, that keeps the siren mechanism from sounding until the drive brakes are released. As soon as the drive brakes are retracted, the Jerico Trumpet disengages. As I posted in another thread regarding this, sometimes the brake didn't reset, and the pilot had to listen to the thing all the way back to base... By the way, awesome detail image, Colin! __________________ "Look back over the past, with its changing empires that rose and fell, and you can foresee the future." - Marcus Aurelius, Emperor of Rome > I Support Doug Gillis <

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01-09-2009, 08:59 AM	#2
Colin1 Senior Member Join Date: Jan 2009 Location: United Kingdom Posts: 2,418	Wasn't the 'Jericho Horn' simply a variation on the air raid siren theme? The air raid siren being hand-cranked and the variation in pitch provided by simply hand-cranking it faster? Mounted on the Ju87, the manual drive was replaced by a suitable alternative, a small propeller driving the unit instead; the variation in pitch here being provided by the Ju87's increase in speed as its dive progressed. I've an idea Doppler Effect would have been instrumental here, too, particularly if you were the position (or close to the position) being targetted.