Turret Armor KE Rha values for the Leopard 2E and Challenger 2 seems to be rather high. The M1A2 seems to have rather weak turret armor in comparison.
I thought the DU inserts should give the M1A2 SEP a definite KE edge over the Leopard 2 series of tanks. Can anybody explain this to me ?
leopard 2A5 front turret has a steeply angled hollow wedge designed to angle and break a sabot round before it hits the main armour. even a fairly minor angle induced on the penetrator will drastically reduce the
L/D ratio and therefore the penetration of the round.
also, the front turret max LOS thickness is about 1713mm.
the challenger turret armour, has the steepest angle on the front turret of any tank,
its angled backwards 52 degrees, and sideways 27 degrees, giving it nearly 1150mm of LOS thickness to work with.
for comparison, the M1A2 front turret LOS thickness is about 710mm at its thickest.
the M1A2 armour pretty much has the highest thickness efficiency of all these tanks,
getting 950mm out 710mm vs KE.
second place is challenger 2, with 1250mm out of 1150mm
and third place leopard 2 with 1380mm out of over 1700mm of armour.
I am not sure if Paul's estimations were all proper, some of them are considered as wrong these days.
I also made some research on this subject, Dejawolf, you remember STGN? He made a very accurate 3d model of M1A1, to the scale, and his meassures of front armor were also around 900mm. As we know, M1A1's turret is same as M1A2's.
Well the issue is not with the physical thickness in the first place, the issue is that IF Paul's values are so dated that they are now wrong, then newer estimates are needed. But until he makes newer estimates there is no reason to panic or assume an error.