RE: [MV] Cold roll

From: Glen Bedel (GBedel@designforum.com)
Date: Thu Aug 07 2003 - 10:53:19 PDT


I thought from the article they were adapting an old M113 hull?

-----Original Message-----
From: Employee@MilVeh.com [mailto:milveh@sbcglobal.net]
Sent: Thursday, August 07, 2003 1:46 PM
To: Military Vehicles Mailing List
Subject: Re: [MV] Cold roll

Was it the stated purpose of the gun trucks to use
cold roll steel to stop RPG rounds????!

I suppose if the angle of attack was greater than
75-80 degrees, the angle of attack deflection factor
would likely stop most RPG's. Better than nothing.
However, to think our military would use steel plate
to stop RPG's would be wrong.

You have to consider the military, anyone's military,
is often forced to use make-shift materials to fill a
void in an urgent circumstance. The ability to
provide some protection, probably about 50-60%
effective protection from most small arms, up to .308
cal.(7.62x51) is better than nothing and it achieved
with 1/4" cold roll, angle of attack not withstanding.
 AK47- 7.62X39 rounds are less powerful and likely the protection would be
somewhere around 80% or better depending on the range and angle...angle
being the most important. Sure, AP rounds are going to punch 1/4", no doubt
about it, but again it's better than nothing and I think that was the
original intent. There is also the concealment factor, that helps too.
Anything to bring the odds up is good, right?

Ceramic steel armor plate would be far better, but a
little hard to buy off the shelf today.

Just my 2 cents worth and I have shot a lot of steel
plates with a lot of various rounds!

 

--- Gavin Broad <invest@portsmouth-mann.com> wrote:
> Hi Chaps,
>
> I would be very interested to hear what protection cold-rolled steel
> will provide against an RPG round .........and I
> want to hear from
> people who KNOW, NOT from those with an opinion.
>
> As a qualified metallurgist ( albeit in a former incarnation), I can
> only imagine that it would be like holing up a
> newspaper, when, before,
> one only had arsewipe.
>
> Just a thought.
> Gavin in yet-to-be-blown-up Bangkok.
> Gav.
>
>
>
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