7 

7
Bottom damage probabilities
(1) The probability PB of breaching a compartment from bottom damage shall be calculated as follows PB = PBL PBT PBV.
(2) PBa, PBf, PBp, PBs, and PBz shall be determined by linear interpolation from the table of probabilities for bottom damage—
Xa/LPBaXf/LPBfYp BBPBpYs/BBPBs
0.000.0000.000.9690.000.8440.000.000
0.050.0020.050.9530.050.7940.050.009
0.100.0080.100.9360.100.7440.100.032
0.150.0170.150.9160.150.6940.150.063
0.200.0290.200.8940.200.6440.200.097
0.250.0420.250.8700.250.5940.250.133
0.300.0580.300.8420.300.5440.300.171
0.350.0760.350.8100.350.4940.350.211
0.400.0960.400.7750.400.4440.400.253
0.450.1190.450.7340.450.3940.450.297
0.500.1430.500.6870.500.3440.500.344
0.550.1710.550.6300.550.2970.550.394
0.600.2030.600.5630.600.2530.600.444
0.650.2420.650.4890.650.2110.650.494
0.700.2890.700.4130.700.1710.700.544
0.750.3440.750.3330.750.1330.750.594
0.800.4090.800.2520.800.0970.800.644
0.850.4820.850.1700.850.0630.850.694
0.900.5650.900.0890.900.0320.900.744
0.950.6580.950.0260.950.0090.950.794
1.000.7611.000.0001.000.0001.000.844