[mdlug] OT - IR jamming

[Aaron Kulkis]

Thomas Cameron (Red Hat) wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Dave Arbogast wrote:
> |> For what it's worth, you're conflating explosively-formed projectiles or
> |> penetrators with shaped charges which produce a jet of molten copper not
> |> a solid, bullet-shaped projectile.
> |>
> |> The difference shows up best with the utility of the slat armor used on
> |> Strykers which detonates the the RPG warhead prematurely thus robbing it
> |> of effectiveness but is essentially useless against an EFP.
> |>
> |> The shaped-charge, in order to be effective, has to detonate within a
> |> fairly narrow minimum and maximum distance in order for the copper jet
> |> to either form, at the minimum distance, or remain in a solid stream at
> |> the maximum distance. EFPs are not so encumbered being effective from
> |> substantially greater distances.
> |>
> |> The shaped-charge you refer too is a good example of the difference. A
> |> half inch or so beyond its maximum range and it's ineffective. An EFP is
> |> effective from at least tens of yards.
> |>
> |> That sensitivity to conditions is also how one type of active armor
> |> works. The explosive sandwiched between the steel layers of active armor
> |> detonates quickly enough to upset the conditions necessary to form a
> |> coherent jet of molten copper rendering the munition ineffective.
> |> Although I'm not certain, I'd venture a guess that this type of active
> |> armor is ineffective against an EFP.
> |>
> |> If anyone's interested in building an Illudium Q-36 Explosive Space
> |> Modulator I've got a neutronium barrel - practically new - that I can
> |> contribute to the project. Full disclosure: the anti-matter containment
> |> field is a big flaky.
> |>
> |> Allen
> |>
> | WOW!  I guess the censorship of our press during this war has been
> | effective in confusing me ;-)
> 
> LOL - and I was just wondering when the FBI was going to show up at
> Allen's door and cart him off to Gitmo.

No classified information there.

The enemy is fully aware that the EFP has a longer effective
range than the jet of a shaped charge.