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PostPosted: Wed Jul 05, 2006 9:10 am 
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Guess who's building a watercooled .50cal complete with tripod.


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PostPosted: Wed Jul 05, 2006 9:45 am 
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The water cooled .50cal was used quite a lot in the ETO. The first anti aircraft gun to defend the beaches at Normandy, see ' Spearheading Normandy'. There were quite a few made, also seen at the battle of Midway and famously seen at Pearl Harbour with the famous Torra Torra mount so experts call it today. According to the TM manuals of the day. These guns can substain a continuous burst of 300rnd without over heating. The normal air cooled .50cal is only allowed a continous burst of 75rnd (5 seconds) for the first burst but has to cool for a minute or so for a recommended 20 rnd bursts there after, otherwise continuous bursts of 75 rnds without a pause will cause cook-offs, cause stoppages and knacker the barrel for good. :oops: Combat use is unrestricted. :D Watercooled .50cal jacket kits cost from $12.000 upwards the same goes for the mounts. Complete working units range between $40,000- $60,000 in the US so i belive. Keep the photos of the Water cooled .50cals comming. A great bit of kit. :wink:


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PostPosted: Wed Jul 05, 2006 9:48 am 
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The water cooled .50cal was used quite a lot in the ETO. The first anti aircraft gun to defend the beaches at Normandy, see ' Spearheading Normandy'. There were quite a few made, also seen at the battle of Midway and famously seen at Pearl Harbour with the famous Torra Torra mount so experts call it today. According to the TM manuals of the day. These guns can substain a continuous burst of 300rnd without over heating. The normal air cooled .50cal is only allowed a continous burst of 75rnd (5 seconds) for the first burst but has to cool for a minute or so for a recommended 20 rnd bursts there after, otherwise continuous bursts of 75 rnds without a pause will cause cook-offs, cause stoppages and knacker the barrel for good. :oops: Combat use is unrestricted. :D Watercooled .50cal jacket kits cost from $12.000 upwards the same goes for the mounts. Complete working units range between $40,000- $60,000 in the US so i belive. Keep the photos of the Water cooled .50cals comming. A great bit of kit. :wink:


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PostPosted: Wed Jul 05, 2006 13:59 pm 
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The water cooled .30cal can substain a longer burst of fire than the air cooled .30cal. The same goes for the water cooled .50cal with a continous burst rate of 200 to 300rnds. According to the TMs the .50cal air cooled should not be fired for more than 5 seconds ie 75 rnds burst. after that in bursts of 20rnds with intermittent cooling periods of say a minute etc. Longer rates of fire will result in cookoffs and bad operation and a resulting knackered, barrel. This does not apply in combat situations. I supose this also applys to the aircooled .30cal with different limitations. The water cooled.50cal was used quite a lot in the ETO, being one of the first AA guns to defend the beaches of Normandy, see 'Spearheading Normandy'. Famously seen at Midway and used at Pearl Harbour, hence the name for one of the mounts called by the experts as the Torra Torra mount. Very expensive as well, one with mounts at $40,000, kits from $12,000, mounts costing the same. A nice piece of kit though. Keep the pictures comming.


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PostPosted: Wed Jul 05, 2006 18:12 pm 
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the Warercooled 30cal was used a lot in jeeps through the war!!!! and the cradel for it!!!

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PostPosted: Thu Jul 06, 2006 10:01 am 
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The water cooled .30cal can substain a longer burst of fire than the aircooled version. the same goes for the water cooled .50cal with a continious burst rate of 200-300 rnds compared the air cooled version with a recommended first burst no longer than 75rnds (5 seconds) with 20rnd bursts there after with cooling in between this does not apply to combat conditions. longer bursts creating cook offs and bad operation and a resulting knackered barrel. later barrels had Stelite bores. similar conditions also apply to the air cooled .30cal. The water cooled .50cal was used quite a lot in the ETO, being one of the first AA guns to defend the Normandy beach head, see 'Spearheading Normandy', The water cooled .50cal Famously seen at Midway and Pearl Harbour hence the name of one of the mounts it uses given by experts as the Torra Torra mount. Very expensive bit of kit at $40,000 for the gun $12,000 upwards for the mounts and the same for the jacket kit. A very nice piece of kit.


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PostPosted: Thu Jul 06, 2006 10:02 am 
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The water cooled .30cal can substain a longer burst of fire than the aircooled version. the same goes for the water cooled .50cal with a continious burst rate of 200-300 rnds compared the air cooled version with a recommended first burst no longer than 75rnds (5 seconds) with 20rnd bursts there after with cooling in between this does not apply to combat conditions. longer bursts creating cook offs and bad operation and a resulting knackered barrel. later barrels had Stelite bores. similar conditions also apply to the air cooled .30cal. The water cooled .50cal was used quite a lot in the ETO, being one of the first AA guns to defend the Normandy beach head, see 'Spearheading Normandy', The water cooled .50cal Famously seen at Midway and Pearl Harbour hence the name of one of the mounts it uses given by experts as the Torra Torra mount. Very expensive bit of kit at $40,000 for the gun $12,000 upwards for the mounts and the same for the jacket kit. A very nice piece of kit.


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PostPosted: Thu Jul 06, 2006 20:42 pm 
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The water cooled .30cal can sub stain a longer burst of fire than the air cooled version. The same goes for the water cooled .50cal with a continuous burst rate of 200-300 rnds compared to the air cooled version with a recommended first burst of no longer than 75 rnds (5 sec) with 20 rnd bursts there after with cooling in between. This does not apply to combat conditions. Longer bursts will result in cook offs and bad operation with a resulting knackered barrel. Later barrels had stellite bores. Similar conditions apply to the air cooled .30cal. The water cooled .50cal was used quite a lot in the ETO, being one of the first AA guns to defend the Normandy beach head, see 'Spearheading Normandy.' The water cooled .50cal famously seen at Midway and Pearl Harbour hence the name of one of its mounts referred by experts as the Torra Torra mount. A very expensive bit of kit at $40,000 + with the mounts. jacket kits from $12,000 up with the mounts fetching the same. A very nice piece of kit though.


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PostPosted: Thu Jul 06, 2006 21:02 pm 
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Location: Defending Poland from South West of England!
Real Name: Paul Beckwith
Group: Poland '39 LHG; Odwach Polish army of 1939-1945
I would be interested in finding out more about repro water cooled .30 cal machine guns - they were licence produced in Poland, and in use with the Polish army during the 1939 campaign too!

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PostPosted: Thu Jul 06, 2006 22:06 pm 
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Location: Defending Poland from South West of England!
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I would personally be interested in finding out a little more about the repro .30 cal machine guns - they were licenced produced in Poland between the wars and saw a lot of use in the 1939 campign! There is also pictures of them being used by the Home Army during the resistence to the Germans, and they were most definatly used in the Warsaw Uprising.

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PostPosted: Fri Jul 07, 2006 13:57 pm 
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help


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PostPosted: Mon Jul 10, 2006 12:06 pm 
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The water cooled .30cal can sub stain a loger burst of fire than the air cooled version. The same goes for the water cooled .50cal with a continuous burst rate of 200-300 rnds compaired to the air cooled version with a recommended first burst of no longer than 75 rnds (5sec) with 20 rns bursts there after with cooling in between. This does not apply to combat conditions. Longer bursts will result in cook offs and bad operation with a resulting knackered barrel. Later barrels were stellite lined. Similar conditions apply to the air cooled .30cal. The water cooled .50cal was used quite a lot in the ETO, being one of the first AA guns to defend the Normandy beach head, see 'Spearheading Normandy.' The water cooled .50cal seen famously at Midway and Pearl Harbour hence the name of one of its mounts referred by experts as the Torra Torra mount.
A very expensive bit of kit at $40,000+ with mounts. Jacket kits from $12,000 up, with the mounts fetching the same. A very nice piece of kit though.


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PostPosted: Mon Jul 10, 2006 20:55 pm 
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Both water cooled guns also had a higher rate of fire due to the lighter barrels. Heavy barels were used on air cooled guns to disipate heat and consequently slowed the rate of fire. The only air cooled guns that could match the rate of fire of a water cooled guns were the aircraft versions.


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 Post subject: watercooled 30 cal pic
PostPosted: Tue Sep 19, 2006 15:21 pm 
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Am having trouble with poxy bucket thing so bear with me...



http://i101.photobucket.com/albums/m68/ ... ure005.jpg

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Last edited by Grey on Tue Sep 19, 2006 20:02 pm, edited 1 time in total.

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PostPosted: Tue Sep 19, 2006 16:51 pm 
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I think it's this one

http://i101.photobucket.com/albums/m68/ ... ure005.jpg

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PostPosted: Tue Sep 19, 2006 20:04 pm 
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cheers GICOP, one does feel a fool :oops:

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