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Discussion Starter #1
Hello,

I'am trying to identify the armor of the suncken merchant vessel SS thistlegorm.
Also I am looking for day pictures of the armor of this ship to put on my site.

More information about this ship

http://www.ssthistlegorm.com/
http://www.duikenonline.com/Andre/Onder water/target268.html




Low Angle Gun – (for use against surfaced submarines and surface raiders).
This was a 4 inch (102mm) calibre weapon. It was most probably a Mark III weapon dating from WWI which was specially designed for Defensively Armed Merchant Ships. The barrel was 40 calibres and it fired a 25lb (11.4kg) shell with an effective range of about 6 miles (10,000 metres). Rate of fire was up to 14 rounds per minute. This gun is mounted at the after end of the poop deck.

Anti-Aircraft Gun
This was a 3 inch (76mm) calibre weapon with a 40 calibre barrel length frequently referred to as a 12 pounder. It was most probably a Mark I weapon introduced during WWI which fired a 12 pound (5.5 kg shell). It was loaded with fixed ammunition, i.e. the shell, propellant charge and detonator contained in a brass cartridge case for speed of loading. The maximum range was about 11,000yards (10,000 metres). Rate of fire was up to 20 rounds per minute. This is mounted on a low stand about the middle of the poop deck.
According to AFO 1571/1941 the standard anti-aircraft ammunition allowance for merchant vessels was 198 high-explosive time fused shells and 72 practice rounds.
Some ammunition would be stored near the guns in ready-use ammunition lockers but most would be in a hold below the guns with a rudimentary ammunition hoist.


Also maybe someone can identify these amonition

http://petlui.hostingrapid.com/fotos-2004/target234.html
http://www.duikenonline.com/Andre/Onder water/target256.html

Thank you
 

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Are you by any chance a non english speaker or using some translating software? In english, armor refers to steel plate and few people have much interest in its details. The first photo is, I think, a picture of a hedgehog projectile, ie. a spigot mortar with a shaped charge warhead, fired in salvo at submerged submarines close to the surface. In the second, without anything to reference for dimensions, it would be nearly impossible to id.
 

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Are you by any chance a non english speaker or using some translating software? In english, armor refers to steel plate and few people have much interest in its details. The first photo is, I think, a picture of a hedgehog projectile, ie. a spigot mortar with a shaped charge warhead, fired in salvo at submerged submarines close to the surface. In the second, without anything to reference for dimensions, it would be nearly impossible to id.
Mr Gunn - the poster is from The Netherlands, and the word he is trying to recall is 'armament'.

Tot ziens!!

tac
 

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The first photo looks like the 102mm low angle gun while the second photo appears to be the 76mm anti aircraft gun. If that is what you are asking.

As for the ammunition photo's. The first looks like a mortar round. The second could be from the ships big gun or they both could have been part of the cargo manifest the ship was carrying and not part of it's munitions magazine.
 

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The first photo looks like the 102mm low angle gun while the second photo appears to be the 76mm anti aircraft gun. If that is what you are asking.

As for the ammunition photo's. The first looks like a mortar round the second could be from the ships big gun or they both could have been part of the cargo manifest the ship was carrying and not part of it's munitions magazine.

Sir - the ship's guns do not fire mortar rounds, but common shell like the second picture. I agree with the poster who thought it might be an ASW mortar round.

tac
 

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Sir, pardon my poor sentence structure. I should have used 2 sentences instead of the one. I identified the first as being a mortar round and the second round as possibly from one of the ships guns. Even an Air Force guy like me knows that the Navy didn't use mortar rounds in those guns.
 

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Discussion Starter #7
Hello there,

Here's some extra information about the ship

http://www.divernet.com/cgi-bin/articles.pl?id=6739&sc=1020&ac=d
http://www.touregypt.net/VDC/Thistle.htm

I have made 7 dives on it and we are trying to get the correct information about this ship. In the diving world this is one is one of the best wrecks to dive on.
Hold-4 is bombed by a Heinkel bomber the ship sunk very fast en the explosion trew 2 locomotiefs 28m away from the ship.
The ship is loaded with lots of 303 Enfield carbines, and 2 Bren Gun Carriers and lots more.
On the bombed part there is also a big pile of ammunition boxes with shells dated 1929.
 
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U-Fix-Ems!

I can work with those.

But that coral growth looks like it might be a little tougher to remove than Russian cosmoline.

Do I hear an SOG "cosmetic damage"/Century "U-Fix-Em" special?
 
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