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Page Title:
Table A-XIII. Minimum required ballistic limits (protection criteria), firing obliquity: 45, projectile |
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|  MIL-A-12560H (MR)
w/INT. AMENDMENT 4
APPENDIX A
TABLE A-XIII. Minimum required ballistic limits (protection criteria), firing obliquity: 45,
projectile: caliber 90 mm M82 APC.
Thickness,
Required
Thickness,
Required
Thickness,
Required
inches
BL(P), ft/sec
inches
BL(P), ft/sec
inches
BL(P), ft/sec
2.700
2095
2.980
2260
3.270
2420
2.710
2101
2.990
2265
3.280
2425
2.720
2107
3.000
2271
3.290
2430
2.730
2113
3.010
2277
3.300
2436
2.740
2119
3.020
2282
3.310
2441
2.750
2125
3.030
2288
3.320
2446
1/ 2.751
2126
3.040
2294
3.330
2451
2.760
2131
3.050
2299
3.340
2457
2.770
2137
3.060
2305
3.350
2462
2.780
2143
3.070
2310
3.360
2467
2.790
2149
3.080
2316
3.370
2472
2.800
2155
3.090
2322
3.380
2478
2.810
2161
3.100
2327
3.390
2483
2.820
2167
3.110
2333
3.400
2488
2.830
2173
3.120
2338
3.410
2493
2.840
2179
3.130
2344
3.420
2498
2.850
2185
3.140
2349
3.430
2404
2.860
2190
3.150
2355
3.440
2509
2.870
2196
3.160
2360
3.450
2514
2.880
2202
3.170
2366
3.460
2519
2.890
2208
3.180
2371
3.470
2524
2.900
2214
3.190
2376
3.480
2529
2.910
2220
3.200
2382
3.490
2534
2.920
2225
3.210
2387
2/ 3.500
2540
2.930
2231
3.220
2393
3.510
2545
2.940
2237
3.230
2398
3.520
2550
2.950
2243
3.240
2404
3.530
2555
2.960
2248
3.250
2409
3.540
2560
2.970
2254
3.260
2414
3.550
2565
3.560
2570
1/ Specification requirements begin at 2.751 inches ordered thickness.
2/ Specification requirements end at 3.500 inches ordered thickness.
NOTE: For class 3 armor the upper ballistic limit (maximum) shall not be greater than 293
ft/sec above the required lower ballistic limit (minimum).
35
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