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EU The Military

60,000 Germans Evacuate While Officials Try To Defuse a WWII Bomb (abc.net.au) 154

More than 70 years ago the UK's Royal Air Force dropped an 1,100-pound bomb on Germany. They just found it. An anonymous reader quotes ABC: Residents in two German cities are evacuating their homes as authorities prepare to dispose of World War II-era bombs found during construction work this week. About 21,000 people have been ordered to leave their homes and workplaces in the western city of Koblenz as a precaution before specialists attempt to defuse the 500-kilogram bomb on Saturday afternoon (local time). Among those moved to safety are prison inmates and hospital patients. Officials in the financial capital Frankfurt, meanwhile, are carrying out what is described as Germany's biggest evacuation. Frankfurt city officials have said more than 60,000 residents will have to leave their homes for at least 12 hours.

Failure to defuse the bomb could cause a big enough explosion to flatten a city block, a fire department official said. "This bomb has more than 1.4 tonnes of explosives," Frankfurt fire chief Reinhard Ries said. "It's not just fragments that are the problem, but also the pressure that it creates that would dismantle all the buildings in a 100-metre radius"... Police will ring every doorbell and use helicopters with heat-sensing cameras to make sure nobody is left behind before they start diffusing the bomb.

Reuters notes that every year Germany discovers more than 2,000 tons of live bombs and munitions, adding "In July, a kindergarten was evacuated after teachers discovered an unexploded World War Two bomb on a shelf among some toys."
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60,000 Germans Evacuate While Officials Try To Defuse a WWII Bomb

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  • So what weight? (Score:1, Insightful)

    by Anonymous Coward

    is it a 500kg bomb or is it a 1400kg bomb... you cant have a 500kg bomb containing 1.4Tonnes of explosives...

    • Re: (Score:2, Informative)

      by Anonymous Coward

      There are two bombs. One in each of two cities.

      • There are two bombs.

        Are you sure about that, captain Picard?

      • I heard on the TV about a blockbuster. That's 4,000lb, IIRC. A cookie is 8,000, unless it's the way round.

        In either case it's pretty big. Only Lancasters could carry anything bigger (up to 20,000lb), and even then only with modification.

    • it's two bombs (Score:5, Informative)

      by Immerial ( 1093103 ) on Saturday September 02, 2017 @02:12PM (#55129223) Homepage
      one 500kg bomb in Koblenz, and a second 1.4 ton bomb in Frankfurt. (Bad title by editor... saying one bomb.)
    • There are two bombs, and TFA confuses them a bit. There's a 500 kg bomb in Koblenz, and a 1,800 kg aerial mine in Frankfurt. Which, obviously, is the one with 1.4 tonnes of explosives.

    • you cant have a 500kg bomb containing 1.4Tonnes of explosives...

      . . . the bomb used a WWII precursor of today's TARDIS technology.

      There's always plenty of more room near the rear . . .

  • Somebody set up us the bomb!
  • by __aaclcg7560 ( 824291 ) on Saturday September 02, 2017 @02:13PM (#55129229)

    "In July, a kindergarten was evacuated after teachers discovered an unexploded World War Two bomb on a shelf among some toys."

    When I was a kid in the 1970's California, we had to build our own pipe bombs.

  • by fuzzyfuzzyfungus ( 1223518 ) on Saturday September 02, 2017 @02:20PM (#55129257) Journal
    Looks like it isn't just Hollywood trying to turn old franchises into blockbusters this year.
    • by mikael ( 484 )

      We used to have a TV series called "Danger - UXB", based on the soldiers who had to slowly and carefully remove doodlebugs that children had found on the street and taken up to their bedrooms.

      • Doodlebug was the nickname for the pulse jet powered V1 flying bomb. They weren't easy to lift, let alone take up to the bedroom.

        • by fnj ( 64210 )

          The V1 (Doodlebug) had an 850 kg (1870 lb) warhead. A complete V1 weighed 2150 kg (4740 lb). No "children" are going to carry either object upstairs.

  • by HalAtWork ( 926717 ) on Saturday September 02, 2017 @02:39PM (#55129327)

    "Police will ring every doorbell and use helicopters with heat-sensing cameras to make sure nobody is left behind before they start diffusing the bomb."

    I hope it is defused and not diffused

    • Homeopathic bombs are stronger the more you diffuse them.

    • by Anonymous Coward

      "Police will ring every doorbell and use helicopters with heat-sensing cameras to make sure nobody is left behind before they start diffusing the bomb."

      I hope it is defused and not diffused

      One of the techniques if a UXB is too dangerous to move and can't safely be destroyed in-situ is to melt the explosive out with steam thus diffusing the contents. The Wikipedia page on Bomb disposal [wikipedia.org] calls this Trepanation.

    • I'm hoping they don't get over-zealous.
      Where I am staying at the moment is a couple of metres outside the exclusion zone, I have just heard the police ordering people to leave their houses but am assuming they don't mean this particular house.

  • There was a live piece of ammo in my neighbors garage when I was six years old. It was about 50 mm in diameter and I picked it up to look at it. I found a live round in the desert near a former aircraft firing range that I took and soaked in water for two days, then wrapped in wet paper and put in the trash. Me and my dad found some blasting caps in an abandoned trailer at the Hauser geode beds, we threw one into our campfire and it blew all the wood 2-3 feet away. He threw them into San Diego bay on his wa
    • Re:Explosives (Score:5, Interesting)

      by __aaclcg7560 ( 824291 ) on Saturday September 02, 2017 @04:49PM (#55129803)
      Back in the 1980's, a local WW2 vet passed away and his relatives found sweating dynamite in attic of a detached garage. Since the bomb squad couldn't get to the dynamite, they set the garage on fire and let the whole thing burn to the ground. The fire department sprayed water on the smoldering foundations.
      • by c ( 8461 )

        Back in the 1980's, a local WW2 vet passed away and his relatives found sweating dynamite in attic of a detached garage.

        Back in the 80's after my grandfather passed away, they found old dynamite in the attic of his house.

        Not sure how they got it out, but they didn't burn the house down.

        • Lucky or it wasn't that old. Dynamite will sweat nitroglycerin after as soon as a year in storage. It can accumulate into pools on the floor. A small as a half of an ounce can take an arm off if you drop a hammer.
          • by c ( 8461 )

            More likely it wasn't actually Dynamite. They said "dynamite", but given that they didn't need to do any real damage to the house getting it out I suspect it was something quite a bit more stable... some variant of TNT would be a more likely guess.

            Either way, it's almost certainly not an approved storage method.

      • by Shinobi ( 19308 )

        A friend of mine from the Netherlands was going to visit his grandfather one day, only to find that the whole neighbourhood was cordoned off, evacuated, and the police and military bomb disposal teams in a hurry to get inside.

        Turns out, his grandfather had been the quartermaster for the local resistance, and had a fair amount of stuff lying around in his cellar, such as a couple of anti-tank mines, some mortar shells, a whole lot of small arms ammunition etc.

      • a detached garage. Since the bomb squad couldn't get to the dynamite, they set the garage on fire and let the whole thing burn to the ground.

        Sounds like a correct action.

        Contrary to what Hollywood will train people to think, most high explosives (and many low explosives) will burn perfectly unconcernedly if not confined. To get them to detonate, you need to apply a shock wave with a propagation speed of some thousand-plus metres per second. You don't get that accidentally - you need a specially designed de

  • Bomb Type (Score:5, Informative)

    by Catmeat ( 20653 ) <mtm&sys,uea,ac,uk> on Saturday September 02, 2017 @03:52PM (#55129595)

    The bomb is a British Blockbuster - so called because one could flatten an entire city block.The bombs are the origin of the term..

    They were giant cylinders filled with explosive,with no streamling and no tailfins. When dropped they tumbled randomly through the air so there was no kind of accuracy with them. Dropping one on anything smaller than a city was pointless. Essentially they're weapons that were purpose-designed to be dropped on cities and to kill civilians.

    • by Tablizer ( 95088 )

      I wonder why it didn't go off. Did it land in soft mud or something?

      • Some were fitted with chemical timers, so they would go off later. This was for two reasons, from what I understand. First, these bombs were so big that 6,000' was the minimum altitude for bomb-drops, as the shockwave would damage the plane below that. Second, it was an area-denial method, as they either had to send in technicians to defuse them hopefully in time, or simply wait until they exploded before going in and picking up the pieces. Given the number of bombs and the potential for many to embed thems

        • by Bert64 ( 520050 )

          It's extremely difficult to keep track of where bombs fell...
          Even if you keep records of all the targets, there were many bombs that fell short of their targets for various reasons.

      • Generally there are one or two triggering mechanisms, impact and timer. If only a timer is used, it can be broken by impact. Some primitive impact mechanisms might not work if the bomb lands at a peculiar angle, I guess. Or, the triggering mechanism may have been defective from the time of manufacture.

        Since the side using the bomb wants to be able to transport it safely, bombs are designed to be armed (the triggering mechanism enabled) shortly before use. Failure to arm the bomb could also prevent detonatio

  • Especially when either some guy with a whip and a fedora hat is involved ... or the bomb squad!
  • by Ihlosi ( 895663 ) on Saturday September 02, 2017 @05:06PM (#55129879)
    Because bomb diffusion usually happens rapidly (you could say exposively).

    Defusing it would be preferable.

  • by MrKevvy ( 85565 ) on Saturday September 02, 2017 @05:12PM (#55129899)

    "Police will ring every doorbell and use helicopters with heat-sensing cameras to make sure nobody is left behind before they start diffusing the bomb."

    If they are not careful, they will indeed diffuse the bomb. I hope that they defuse it instead.

  • by tomxor ( 2379126 ) on Saturday September 02, 2017 @05:54PM (#55130059)

    From https://en.wikipedia.org/wiki/... [wikipedia.org]

    All 1800Kg unexploded Blockbusters so far:

    • 2011 December, Koblenz, 45,000 evacuated
    • 2013 November, Dortmund, 20,000 evacuated
    • 2014 April, Vicenza, 30,000 evacuated
    • 2016 December, Augsburg, 54,000 evacuated
    • 2017 August, Frankfurt, 70,000 evacuated
    • Seems like there's an important lesson here. When you start dropping bombs, you're not just killing the people you drop them on. You have to assume you'll also kill some random people who happen to live there a few decades from now. So think really carefully [youtube.com] before dropping bombs.

  • US Armed Forces HQ in Frankfurt was pretty much build around the bigger bomb.

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