English Channel Defences 1940

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Clio13
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English Channel Defences 1940

Post by Clio13 » 27 Feb 2011 14:25

Dover barrage 11940.jpg
You really wouldn't want to take a U-boat through these waters would you ?
Source: BR736
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Silent Warriors: Submarines lost around the British coast in war and peace

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phylo_roadking
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Re: English Channel Defences 1940

Post by phylo_roadking » 27 Feb 2011 16:32

Thanks for the detailed close-up, I've been looking for one for some years now. One detail that's missing from it is that at least some of the mine barrages were remotely controlled from Dover, they could be shut down to let convoys through! 8O Which was a detail I wasn't aware of until I read it in Brian Lavery's "We Shall Fight On The Beaches". Possibly the ones covering the "Searched" and "Secret" channels?
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Clio13
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Re: English Channel Defences 1940

Post by Clio13 » 27 Feb 2011 16:43

Yes, I think you are right. U 12 was destroyed at 51 10 N 01 30 E by a conventional minefield on 8 October 1939. I plot this location as Field 'D2'. Now U 16 was certainly blown up on a Bragg Loop at 51 09 084 N 01 28 202 E on 25 October 1939. I think the Bragg Loop defences must have been across the searched channel shown in the chart. From my researches I do know that the one which destroyed U 16 was operated from the St Margaret's Bay Indicator Loop Station.

Below find a chart of the Folkestone-Griz Nez Barrage of 1918 for comparison
Folkstone II.jpg
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Silent Warriors: Submarines lost around the British coast in war and peace

Clio13
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Re: English Channel Defences 1940

Post by Clio13 » 27 Feb 2011 20:08

Eastcoast south.jpg
This is the East Coast (South) Mine Chart showing the Thames approaches. Note the 'Gaps' often used for destroyer and submarine patrols
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phylo_roadking
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Re: English Channel Defences 1940

Post by phylo_roadking » 27 Feb 2011 20:47

This time - are those "shallow" or "deep" fields??
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Clio13
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Re: English Channel Defences 1940

Post by Clio13 » 27 Feb 2011 21:18

The broken red lines signify deep fields while the solid red lines define shallow fields.
Silent Warriors: Submarines lost around the British coast in war and peace

Bergedorf
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Re: English Channel Defences 1940

Post by Bergedorf » 01 Mar 2011 01:44

Wonderfull Charts!

Could you please tell me what Source: BR736 is. It seems to be no code of Kew?

P.S.: Could it be this: ADM 234/560, Former reference (Department) BR 1736(56)(1) ?

Regards

Dirk

Clio13
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Re: English Channel Defences 1940

Post by Clio13 » 03 Mar 2011 06:49

I didn't even know it was at Kew. Could have saved myself a lot of effort had I known that...
Cover.JPG
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Urmel
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Re: English Channel Defences 1940

Post by Urmel » 14 Mar 2011 12:57

I am fairly certain that all of these histories are held at Kew. I have myself accessed two of them.
The enemy had superiority in numbers, his tanks were more heavily armoured, they had larger calibre guns with nearly twice the effective range of ours, and their telescopes were superior. 5 RTR 19/11/41

The CRUSADER Project - The Winter Battle 1941/42

Bergedorf
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Re: English Channel Defences 1940

Post by Bergedorf » 15 Mar 2011 05:15

They are, indeed... but a little problem is, that the charts are quite expensive:
ADM 234/561 £511.50
Your instructions Copy all pages in this document
Comments from staff
Copying Process No. of Units Unit Cost Process Cost
A2 Mono. prints (from digital scans) 93 £5.50 £511.50
it was a little shock to me :roll:

regards

Dirk

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Urmel
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Re: English Channel Defences 1940

Post by Urmel » 15 Mar 2011 22:36

Not a problem if you can go yourself and take the pictures. :milwink:
The enemy had superiority in numbers, his tanks were more heavily armoured, they had larger calibre guns with nearly twice the effective range of ours, and their telescopes were superior. 5 RTR 19/11/41

The CRUSADER Project - The Winter Battle 1941/42

Bergedorf
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Re: English Channel Defences 1940

Post by Bergedorf » 17 Mar 2011 04:19

JBond wrote:Not a problem if you can go yourself and take the pictures. :milwink:
yes... if... that´s the problem... but perhaps I can combine a visit to London to see the Ukes with a visit to Kew later this year...

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Urmel
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Re: English Channel Defences 1940

Post by Urmel » 17 Mar 2011 09:00

There are people who offer a paid service to do this for you, it'll be a lot cheaper.
The enemy had superiority in numbers, his tanks were more heavily armoured, they had larger calibre guns with nearly twice the effective range of ours, and their telescopes were superior. 5 RTR 19/11/41

The CRUSADER Project - The Winter Battle 1941/42

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