MIL-DTL-12560K (MR)
APPENDIX A
TABLE A-VI. Minimum required ballistic limits (protection criteria) for class 1 and 3 armor and
the upper ballistic limits for class 3 armor; firing obliquity: 30°,projectile: 90 mm M82 APC
Continued.
BL(P), ft/sec
BL(P), ft/sec
BL(P), ft/sec
Thickness,
Thickness,
Thickness,
CLASS
CLASS
CLASS
inches
inches
inches
3
3
3
1&3
1&3
1&3
Min
Min
Min
Max
Max
Max
3.870
2109
2301
3.940
2137
2329
4.005
2162
2354
3.875
2111
2303
3.945
2139
2331
4.010
2164
2356
3.880
2113
2305
3.950
2141
2333
4.015
2166
2358
3.885
2115
2307
3.955
2143
2335
4.020
2168
2360
3.890
2117
2309
3.960
2144
2336
4.025
2170
2362
3.895
2119
2311
3.965
2146
2338
4.030
2172
2364
3.900
2121
2313
3.970
2148
2340
4.035
2174
2366
3.905
2123
2315
3.975
2150
2342
4.040
2176
2368
3.910
2125
2317
3.980
2152
2344
4.045
2178
2370
3.915
2127
2319
3.985
2154
2346
4.050
2179
2371
3.920
2129
2321
3.990
2156
2348
4.055
2181
2373
3.925
2131
2323
3.995
2158
2350
4.060
2183
2375
3.999 2/
3.930
2133
2325
2160
2352
4.065
2185
2377
3.935
2135
2327
4.000
2160
2352
4.070
2187
2379
2/
Specification requirements end for this ordered thickness.
Note: Tabulated values on either side of the specification requirements are for interpolation
of BL(P) requirements on undersize or oversize plates.
38
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