Oct 19, 2022 02:46
2 yrs ago
24 viewers *
English term

replicating the impact of the weapon when it was dropped

English Tech/Engineering Military / Defense
Hello everyone,

Britain was now engaged in a nuclear arms race and Orford Ness was transformed into the atomic weapons research establishment. You don't want an atomic bomb to go off between the factory and the air field. You don't want the atomic bomb to go off on the plane on the way to the target and you don't want the atomic bomb to go off at the wrong time after you drop it. All of those problems needed to be worked out with experimentation and that required an experimentation site. So what experiments took place here? The site's manager Grant Lahoar, explains. The first test carried out here was on vibration, so they were trying to replicate the vibration in an aircraft or in a lorry on the road, or they were subjecting them to shock, or g-forces, or humidity, or temperature. Each laboratory was designed to test different components of nuclear bombs. So this is what was called the hard target or the high impact facility and this essentially is where they were rocket-propelling atomic bomb cases and nuclear bomb cases into very hard concrete wall, which was effectively ***replicating the impact of the weapon when it was dropped***.

What was the point of that test? To check whether the (bomb) case can withstand impact on a very hard surface?
Or to check whether the (bomb) case can break/destroy concrete?

Thank you.

Discussion

Tony M Oct 19, 2022:
@ Jennifer Indeed yes, that's very much what I was alluding to; and in Asker's other quetion, it even mentions bombs "going off at the right moment" — presumably as you suggest, before reaching the ground..
However, I cannot imagine they would simulate its simply dropping off the back of a lorry by using a ROCKET to propel them?!
Neither can I imagine that, once the bomb had reached the ground, they would want it to do anything but go off — what were they going to do: recover it and try again?
Jennifer Levey Oct 19, 2022:
@All It's perhaps worth bearing in mind that in real life circumstances (or should that be 'real death'...), atomic bombs designed in that cold-war era were supposed to explode a short distance above the ground. Ground-impact was not the (primary) trigger for the explosion.

Indeed, in the phrase " ... which was effectively ***replicating the impact of the weapon when it was dropped***." the word 'dropped' may not refer only to the deliberate dropping of the bomb on its intended target, but also the accidental dropping of the bomb as in: 'Sorry sir, your bomb just fell off the back of the lorry."
Zheng Ma Oct 19, 2022:
replicating the impact of the weapon when it was d This is an atomic bomb. I think it will be good to pay attention to this point. In case of atomic bomb, who dare shall be afraid of its explosion force?

Responses

+1
3 hrs
Selected

To check whether the (bomb) case can withstand impact on a very hard surface.

Normally it is a very important problem to ensure safety of certain armament. As we all know, during manufacturing, test, transportation, fielding, etc. the safety is the first. According to Mr. Mikhail Korolev's text, the situation and the purpose are quite clear, I think. In a word, I would like to say that "replicating the impact of the weapon when it was dropped" refers to "simulating all the situation and environment conditions of the weapon when it was dropped". Besides, there shall be no problem like "to check whether the (bomb) case can break/destroy concrete?" in case of nuclear bomb.
Peer comment(s):

neutral Tony M : I don't believe this is the case here; this is 'high-impact' testing, we seem to have moved on from the 'accidental detonation' testing first described. Only more of the wider context would confirm this or not.
26 mins
agree Jennifer Levey : Yes. In the same way as automobile crash tests are used to find out if the occupants can continue to function (=live) after an accident, these bomb tests were done to see if the payload of an atomic bomb would be functional after it hit the ground.
5 hrs
neutral FPC : It doesn't mention "withstand". It's presumable as you say but not evident. We can be sure about "test the effect of the impact" though
6 hrs
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4 KudoZ points awarded for this answer. Comment: "Many thanks to everyone. Thank you, Zheng."
1 hr

I think they mean "to simulate"

Medium
Peer comment(s):

neutral Tony M : 'replicate' is perfectly acceptable here, where the test method is essentially the same as the real-life situation being tested for.
2 hrs
Sorry if I am understood as saying that "replicating" is wrong. I just wanted to say that "it means".
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Reference comments

12 hrs
Reference:

Extract from Most Secret: The Hidden History of Orford Ness By Paddy Heazell



Note from asker:
Thank you very much, Alison!
Peer comments on this reference comment:

agree Tony M : Brilliant, that explains it all!
13 mins
Thanks, Tony!
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