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Re: New 'electrical active' Armour to defeat hand held anti-tankrounds

From: David Brewer <davidbrewer@b...>
Date: Wed, 21 Aug 2002 13:24:21 +0100
Subject: Re: New 'electrical active' Armour to defeat hand held anti-tankrounds

Ground Zero Games wrote:
> 
> >
> >> The British used a shaped charge (fire a BB gun at a window and
> >> you'll see the effect) called a APSH (APSH - armor piercing squash
head)
> >> which passed the inertia but did not penetrate.
> >
> >My understanding of an APSH was that it is a 'normal' grenade with
thin
> >walls so that the explosive material is squashed flat against the
> >armour. When it then explodes, not only the inertia, but also the
> >energy of the explosion is efficiently transferred to the armour.
> >
> >Greetings
> >Karl Heinz
> 
> Isn't this what is usually referred to as HESH - High Explosive Squash
> Head? A round that squidges against the target on impact, then
detonates
> and sends a shockwave through the armour, causing chunks and splinters
to
> spall off the inner face and do a Magimix job on the unfortunate
crewmen.

Sometimes also called HEP: High Explosive, Plastic.
 
> IIRC (and my knowledge on this is rusty), they are not particularly
> velocity-dependant and were thus used quite a bit for lower velocity
guns
> such as the old 76mm on the Scorpion CVR(T). I think their range and
> accuracy is relatively poor, but when they hit they can be quite
effective
> killers.

Well, HEAT isn't particularly velocity dependent either, most slow
tank-killer grenades/rockets/shells use that. HESH likes to be
rifled, HEAT doesn't. HESH is, I think, preferred for knocking
holes in concrete fortifications.

IIRC, the record for the longest confirmed tank vs. tank kill
comes from 120mm HESH being used in operation Desert Noun, at
something like 6,000 metres. APDSFS would have a flatter
trajectory and be more accurate, but the longer the range, the
lesser the penetration.

(Corrections welcomed, etc.)

--
David Brewer

"The mentally disturbed do not employ the Theory of Scientific 
Parsimony: the most simple theory to explain a given set of 


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