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#4540738 - 10/14/20 03:41 AM WW2 Tallboy bomb found in Poland explodes video  
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https://www.nbcnews.com/news/world/...nd-poland-exploding-while-being-n1243257

Wiki info https://en.wikipedia.org/wiki/Tallboy_(bomb)

Wow it's 12,000 lbs. What kind of lift or crane will it take to lift it into the bomb bay of a bomber plane..

The news title incorrect. Tallboy ain't the biggest. It's this one.

https://en.wikipedia.org/wiki/Grand_Slam_(bomb)


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#4540751 - 10/14/20 07:50 AM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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A Tall Boy or a Grand Slam used as a gate marker at a RAF base was found to be still active a few years ago.
That RAF had another 12,000lb bomb,
[Linked Image]

T-12 Cloudmaker 44,000 lb bomb, developed by USA for use by the B-36 bomber, but war ended before it could be used
[Linked Image]


There was only 16 squadrons of RAF fighters that used 100 octane during the BoB.
The Fw190A could not fly with the outer cannon removed.
There was no Fw190A-8s flying with the JGs in 1945.
#4540761 - 10/14/20 10:20 AM Re: WW2 Tallboy bomb found in Poland explodes video [Re: KraziKanuK]  
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Originally Posted by KraziKanuK
A Tall Boy or a Grand Slam used as a gate marker at a RAF base was found to be still active a few years ago.



This may refer to an incident at RAF Chilmark, Wiltshire, in the early Nineties.

Chilmark (long since closed) held the RAF’s strategic reserve of conventional bombs, underground in a network of disused mining tunnels burrowed into a hillside. A friend of mine was station commander there, he told me the story of the “empty” Grand Slam that sat outside Station Headquarters (ie his office) as a Gate Guard.

Seems that some planned work in front of SHQ required the temporary removal of the bomb. So they did their research, found that the empty weight of Grand Slam was 5.5 tons, and brought round the Station’s 6-ton crane to do the job.

Chugga-chugga-chugga-Clunk. Bomb does not move, up come the back wheels of the crane.

Oh dear they said. Let’s just check the bomb’s records, to confirm that it was deactivated? Oh dear (squared), the paperwork can’t be found..


Next steps. Evacuate base, call in EOD squad from RAF Wittering.

The Wittering team arrive, set up a heavily protected control point 100 yds from the Grand Slam, and send forward their remote control “wheelbarrow” bomb disposal robot to gingerly drill a test hole to discover the condition of the bomb’s contents.



Out comes a stream of some 4 tons of rusty brown rainwater.

#4540799 - 10/14/20 01:04 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Viewing the detonation on the Beeb News site. I don't really know, but it didn't look like the magnitude of bang one would expect from such a bomb, even under water. Perhaps it was smothered or encased in some way before accidental explosion? Though the bomb had a strong casing to penetrate casemates, so perhaps it was buried deep in the base of the lake. Compared to a much smaller sea-mine:
BANG!



#4540806 - 10/14/20 01:23 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: BD-123]  
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According to the article it was being deflagrated when it moved into a detonation, so only part of the explosive was involved in the explosion. None of the EOD divers were near the device as it was undergoing a controlled destruction when it became unstable.


Also, the channel it is in is ~260m wide at that point, so the scale might be misleading from an aerial shot, compared to closer in at water-level.

The sea mine shown above is of a type described as 'sending a plume of water 160ft into the air', so *much* smaller than the plume we see here. Estimation for the size is around 500-600 ft.

Still much smaller than it would have been without the deflagration being significantly complete - just detonating it was ruled out because of the risk of damage to a nearby bridge structure apparently this was near enough to be considered a problem for full high-order detonation.

#4540812 - 10/14/20 02:34 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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We talk about all the English and American air crews who bravely flew from England into Europe to bomb the Nazi war machine but we forget the ground crew who work around the clock to keep all those bombers and fighters and other planes be able to fly and the bomb crews who had the dangerous job of putting together millions of bombs and loading them on the airplanes during the entire war . Have any of the ground bomb crew died from accidents. I know many of those bombs are just pieces of metal until they put the tip with the fuse and the tail with the wire on them. Any of those bombs explode while a fuse is being twisted on it? That is a scary job.


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#4540821 - 10/14/20 02:45 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Last edited by KraziKanuK; 10/14/20 02:48 PM.

There was only 16 squadrons of RAF fighters that used 100 octane during the BoB.
The Fw190A could not fly with the outer cannon removed.
There was no Fw190A-8s flying with the JGs in 1945.
#4540826 - 10/14/20 02:51 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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How many helpless fishes were murdered?


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#4540835 - 10/14/20 03:28 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Apparently the locals went out in fishing boats afterwards and scooped up the dead fish which they used to feed the homeless,so they didn't die in vain.

Last edited by Chucky; 10/14/20 03:31 PM.

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#4540837 - 10/14/20 03:49 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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How would you like your fish, fried, broiled or blown up?


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#4540838 - 10/14/20 03:56 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Teach a man to fish and he......oh never mind.


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#4540875 - 10/14/20 06:31 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: Nixer]  
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Originally Posted by Nixer
How would you like your fish, fried, broiled or blown up?

clapping biggrin
As to my query from a chap in the locality on another forum I frequent:
"The sappers prepared for this action for a year. The bomb rested at a depth of 12 meters. Very strange is that it didn't originally explode - it had three fuse systems and all of them fail very strange. The bomb was to be neutralized by the controlled firing of the explosive after penetrating the bomb. Unfortunately - firing quickly turned into an explosion. The sappers took this eventuality into account and the entire operation was carried out remotely. Noone hurt. Well, maybe except for the fish in the river.
Personally, I think that for such a huge bomb - the explosion was not big. It is possible that some of the explosive did burn before the explosion."
It was thought the yield was one third of the norm, probably due to deterioration ...thank goodness.



#4540881 - 10/14/20 06:58 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Fried, is there better way to cook fish?


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#4540890 - 10/14/20 07:36 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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#4540899 - 10/14/20 08:43 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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Poached same as boiling?


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#4540904 - 10/14/20 09:06 PM Re: WW2 Tallboy bomb found in Poland explodes video [Re: NoFlyBoy]  
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I would have thought it would bury itself much deeper that it was.


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