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The protection of the Abrams has gone up more than once.
The M1 has the thinnest.
M1(IP) and M1A1 have the first upgrade.
M1A1(HA) gets 1st gen DU added. Without adding mass, I note.
The heavy common gets 2nd gen DU.
M1A2 SEP v1 gets 3rd gen DU.
The line of sight thickness gets thicker from M1 to M1(IP) on the turret. We noticed because it was harder to get out of the driver's hole.
The question is, how much protection does the line of sight protection provide?
Because this is for a game, I'm not actually looking for the real numbers.
There's a War Thunder page that seems to say that OG Chobham armor is 3x LOS thickness for KE rounds and about 5x for HEAT.
That same War Thunder page misses that the LOS thickness of the IP and A1 turret front changed.
Selecting from more than one online source... The turret face has:
M1 should have 400mm RHAe from KE and 700mm RHAe from HEAT. DR 1,100L.
M1(IP) and M1A1 should have 450mm RHAe from KE and 900mm RHAe from HEAT. DR 1,240L.
M1A1 (HA) should have 610mm RHAe from KE and 1,050mm RHAe from HEAT. DR 1,680L.
M1A1 (HC) should have 940mm RHAe from HE and 1,320mm from RHAe from HEAT. DR 2,590L.
M1A2 SEP v1 should have 960mm RHAe from KE and 1,620mm from HEAT. DR 2,645L.
I might have to make some changes to my T2K conversion in light of this!
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