Originally posted by iqonx
does merkava have chobom? ive never heard that one before.
"Chobham" is not a single brand of armor. Its not even a real name. Also, there is not only one kind of armor that came from the british research
facilities at Chobham Common (a region in Surrey, England). "Chobham armor" more commonly refers to a special ceramic matrix composite armor, so it
more is an indication of the manufacturing process used.
This is comparable to Kevlar, actually Kevlar is only a brand name of the company DuPont which invented this speacial kind of aramide fibre, and
technically only Dupont may label their products "Kevlar". This special kind of aramide fibre is however manufactured now all over the world by
dozens of companies, and though they all have their independent name, they are COMMONLY referred to as "Kevlar".
I dont recall what armor the Merkava 4 has, but if it is built in the form of a ceramic matrix composite, then you can call it "Chobham" or
secondly the challenger gun is actually superiour to the guns o the other tanks not in firepower but long range accuracy becuase its
No it isnt. There´s a reason why most modern tanks, Eastern and Western, inside and outside of NATO use smoothbores. Since we are speaking of tank
vs. tank here, we have to think of the effectivity of APFSDS rounds. APFSDS work less good with a spin, so they have a special casing that prevents
them from being spun by the rifled L30A1 cannon.
APFSDS` travel faster and longer than compact rounds such as HESH and HEAT, also shot placement is more important for the KE penetrator to work
properly (as opposed to the explosive-based HE shells) so the APFSDS is the better indicator of long range accuracy. The rifling only improves the
accuracy of the HESH round, but the HESH system is inferior in damaging potential against armored targets, and also increasingly ineffective against
composite armors and the spread of spall-liners in vehicles (not only tanks).
OTOH shaped charges (HEAT) lose effectivity through a rifled barrel because the explosive energy is partly dissipated by the spinning. There are also
HEAT shells with no-spin casings similar to the APFSDS available, but these have an accuracy and range penalty.
So all in all, the L30A1 has NO combat-effective advantage. The only reason for the rifled cannon was the HESH, and that shell didnt stand the test of