"Holes give edge to new MoD armour"

#1
http://news.bbc.co.uk/1/hi/sci/tech/7811567.stm

"Scientists from the UK Ministry of Defence (MoD) have devised an ultra-hard vehicle armour to protect military personnel."

"I wouldn't like to have been the first person to have suggested that," said Professor Brown, from the Defence Science and Technology Laboratory (DSTL) at Porton Down in Wiltshire.

He explained: "You shouldn't think of them as holes, you should think of them as edges...


Couldn't find it already mentioned and it looked of interest I thought.
 
#4
At a rough guess, a little bit less than half an inch.

While the economic production of Bainite is new, perforated armour dates back to when the Germans were having trouble with Russian 14.5mm anti-tank rifles. The chance of hitting a hole square-on or the metal between the holes evenly is remote in the extreme, so the projectile will tumble and hit any subsequent armour side on, which will drastically reduce the effectiveness of the projectile.
 

ugly

LE
Moderator
#5
Still makes a good headline, "Holes in MoD procurement of armour!"
 
#7
Does this mean i can start drilling the plates of my body armour!?
 
#9
Fabulous. Going into battle in giant cheese graters.
 
#11
The finest example of British Army madness, gentlemen I give you our new armour, it has holes!
 
#12
So... it's spaced laminate with holes? Does it provide protection from HEAT as well or only kinetic penetrators? Long as it passes testing and increases survivability why not?
 

ugly

LE
Moderator
#13
If its light enough it can be an add on not a replacement!
 
#14
Fecked when it rains though.
 
#15
The holey bit (or should that be the edgy bit) is a disrupter plate. With suitable stand-off it will reduce the effectiveness of shaped charge jets, but no more than, say, slat or plain sheet. the key area of effectiveness is against conventional KE (projectiles at less than 1.5 km/s with a relatively low L/D ratio) of a similar size to the hole and thickness of the plate.
 
#16
Hands up, who would want to sit in a vehicle full of holes when you are getting shot at?
 

ugly

LE
Moderator
#17
Pics of bangs would be good at this point!
 
#18
Heh... think how much fun a trip to the wash racks with a holey vehicle is going to be... mud will be a real pain to get out.
 

ugly

LE
Moderator
#19
No if its like when I served they will just paint over the mud and the holes, I can imagine QM(T) wanting his holes I mean edges accounting for!
 
#20
incendiarycutlery said:
The holey bit (or should that be the edgy bit) is a disrupter plate. With suitable stand-off it will reduce the effectiveness of shaped charge jets, but no more than, say, slat or plain sheet. the key area of effectiveness is against conventional KE (projectiles at less than 1.5 km/s with a relatively low L/D ratio) of a similar size to the hole and thickness of the plate.
So... are we talking add on for light vehicles to protect against 12.7mm & 14.5mm HMG fires or are they thinking this will actually affect a tungsten or DU saboted penetrator trajectory? Considering that the 120mm APFDS round has been known to punch through two T-72's in one shot I seriously doubt this stuff is going to have much to say about matters of that caliber.
 
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