OutOnTheOP Posted September 3, 2012 Posted September 3, 2012 Low and behold it only takes ~80 API rounds from a Ka-50 to kill an M1A2 too. From about 1.5km range too. 80 rounds I can believe... 1.5 km, not so much. Pretty sure the GAU8 has significantly higher muzzle velocity, and it needs slant ranges of closer to 500 meters.
marcos Posted September 3, 2012 Author Posted September 3, 2012 (edited) 80 rounds I can believe... 1.5 km, not so much. Pretty sure the GAU8 has significantly higher muzzle velocity, and it needs slant ranges of closer to 500 meters. I think I started outside 1.5km and moved inside it, but I was definitely outside 1km because the gun can't aim down for enough to hit from inside that at the altitude I usually use. I fired 100 rounds on tank 2 but it was already on fire before the last 10-20 hit. I think you are right on KE, that 30x173mm API has 207kJ and the HEI has 195kJ. The 30x165mm HE has 180kJ, so the API is probably around 190-195kJ. http://www.quarry.nildram.co.uk/30mm%20cannon.htmM1A2 vs 2A42.trk Edited September 3, 2012 by marcos
maturin Posted September 3, 2012 Posted September 3, 2012 Yes, and the IS3 had around 120mm average on turret sides. You're only quoting TURRET dimensions; hull thickness tends to be less And the RHA equivalency of the T-72 is actually LESS than the physical thickness of the turret. Even the most advanced modern tanks tend to have fairly thin, relatively unsophisticated armor to the sides: compare with the much heavier Abrams, which STILL (by all sane assessments) has only ~250mm RHAe for the turret sides, and 50-150mm RHAe for hull sides. In that case I've never seen a sane estimate. Or at least, parts of the side turret are up around 300-500mm on all the estimates I've seen.
OutOnTheOP Posted September 3, 2012 Posted September 3, 2012 (edited) And the RHA equivalency of the T-72 is actually LESS than the physical thickness of the turret. No, the IS3's is; it's an old, obsolete tank, made with old, inferior steel, formed with old, inconsistent casting techniques. None of which make for good armoring. Fair enough, though: what's the straight-line physical thickness of the T72 armor on the turret sides? In that case I've never seen a sane estimate. Or at least, parts of the side turret are up around 300-500mm on all the estimates I've seen. Not on anything I've ever seen; the only ones approaching that (and I stress "approach) are the very late model M1A2 and Challenger 2 (outside very amateur "wargamer" estimates, anyhow). And even with those two, it's only fairly small portions of the side. Chally has pretty impressive side armor, though. Keep in mind that the original T72's turret FRONT armor was around 350mm RHAe. I very much doubt the sides are significantly better than what was originally on the front; and 500mm is just waaaay outside the realm of reason. (I should note that I'm talking exclusively RHAe vs KE, though... 300-500mm vs HEAT, I can believe. In fact, with the newer Kontact ERA, I could believe up to 1000mm RHAe vs HEAT on turret sides for the later T72 marks) Edited September 3, 2012 by OutOnTheOP
maturin Posted September 3, 2012 Posted September 3, 2012 I should note that I'm talking exclusively RHAe vs KE, though... Oh.
B25Mitch Posted September 4, 2012 Posted September 4, 2012 Low and behold it only takes ~80 API rounds from a Ka-50 to kill an M1A2 too. From about 1.5km range too. Sounds like a bit of a fluke. In BS1 I've emptied my entire magazine into T-55's at point blank range with no effect. Very occasionally I've managed to kill MBT's (including the M1A2) with the gun, but it was pretty rare. Looks like it's possible to get a lucky hit sometimes, even in this sim. I'm going to try this again in the latest version of DCS World.
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