122 
38 
APPENDIX I. 
SCHEDULE OF CHARGES AND SHOTS. 
(25) List of Charges. 
TasBLe VIII. 
Type of Weight and Nature of 
Charge. Explosive. 
G. 40 ibs. - - = = a 
40/60 Amatol. 
D. 300 Ibs. - - = 5 
40/60 or 50/50 Amatol. 
DE 120 Ihs. - - = = 
40/60 Amatol. 
DX 267 Ths: - = = a 
80/20 Amatol. 
AD 300 Ibs. T.N.T. - - - 
X1 600 Ihs. - - = 
40/60 or 50/50 Amatol. 
X2 900 ths, - = = 
40/60 or 50/50 Amatol. 
X3 900 Ibs, - - - 
40/60 or 50/50 Amatol. 
M 1,000 Ibs. T.N.T. - - - 
At 1,900 lbs. - - - 
50/50 Amatol. 
Se TWN, ee) ee ees 
80/20 Amatol. 
X6 500 Ibs. Gunpowder (E.X.E. 
prism powder), 
H2 320 Ibs. - - - - 
40/60 Amatol. 
NY 820 Ibs. - - - - 
40/60 .\ matol. 
X8 272 Ibs. R.D. No. 30 mixture 
(ammonium pereblorate, 78 ; 
a aluminiwa powder, 6; 
paraffin wax, 16). 
x9 312 lbs. wet guncotton - - 
P 2} Ibs. dry guncotton = - - 
Displace- 
ment 
(cubic 
feet) 
Number 
fired. 
23 
31 
or 
—oO 
OO 
Description. 
Small depth charge; cylindrical mild steel 
casing with dished ends, 1 foot 9 inches 
long, 9 inches diameter, }; inch thick ; 
explosive arranged as at G, Fig, 46. 
Depth charge ; cylindrical mild steel casing 
with dished ends, 2 fect 3} inches long, 
1 foot 54 inches diameter, } inch thick, 
completely filled with explosive except 
central primer tube. 
Depth charge ; casiug same as D hut only 
partly filled with explosive. 
Depth charge ; similar to D. 
American depth charge ; similar to D. 
Two D charges lashed side hy side. 
Three J) charges lashed together so as to 
give three touching cireles in section, 
Three D charges lashed end-to-end. 
Ground mine; conercte casing, about 
2 inches thick, as at M, Fig. 46. 
Special charge ; cylindrical mild steel casing 
with convex ends, 4 feet long, 2 feet 
8 inches diameter, 8; inch to } inch 
thick ; complerely filled with explosive 
except central primer tube. 
Similar to X4. 
Special charge ; cylindrical mild steel casing 
with convex ends, 3 feet 3 inches long, 
1 foot 9$ inches diameter, } inch to 
yz; inch thick; completely filled with 
explosive except central primer tube. 
Buoyant mine ; spherical mild steel casing, 
3 feet 2 inches diameter, + ineh thick, 
explosive in central container as at H2, 
Fig. 46. 
H2 mine with 500 Ibs. additional explosive 
filled in as at X7, Fig. 46. 
Special mine ; spherical mild steel casing, 
3 feet 2 inches diameter, yy inch to finch 
thick ; explosive central, as in H2. 
Special mine ; similar to X8. 
Guncotton primer. 
The primer employed for the majority of the charges contained 2} Ibs. of guncotton ; the primer for 
the H2 mine had j Ih. C.E. and 2} Ibs. T.N.T.; that for the M, X4, and X5 charges had 4 Ibs. of 
tetryl. 
