MIL-DTL-12560K (MR)
APPENDIX A
TABLE A-VII. Minimum required ballistic limits (protection criteria) for class 1 and 3 armor and
the upper ballistic limits for class 3 armor; firing obliquity: 0°, projectile: 90 mm M318A1 AP
Continued.
BL(P), ft/sec
BL(P), ft/sec
BL(P), ft/sec
Thickness,
Thickness,
Thickness,
C LASS
CLASS
CLASS
inches
inches
inches
3
3
3
1&3
1&3
1&3
Min
Min
Min
Max
Max
Max
5.890
2193
2395
5.950
2209
2411
6.010
2226
2428
5.900
2196
2398
5.960
2212
2414
6.020
2228
2430
5.910
2199
2401
5.970
2215
2417
6.030
2231
2433
5.920
2201
2403
5.980
2217
2419
6.040
2234
2436
5.930
2204
2406
5.990
2220
2422
6.050
2236
2438
6.000 2/
5.940
2207
2409
2223
2425
6.060
2239
2441
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.
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