1071 
) 
J 
w 
ait 
c 
i 
~ 
- . . 
5 1500 ~<a ee RT Charge axis vertical 
° Depth 4in. 
b 
» 
> 
9 
z 
x 
12) 
° 
<£ 
nn 
Charge axis horizontal 
Depth 4in. 
Charge axis vertical 
Depth 8 in. 
Charge axis horizontal 
Depth 8 in. 
1000 
Height above water surface — inches 
Fig. 3. SHOCK WAVE VELOCITY IN AIR DUE TO THE DETONATION OF 
A SUBMERGED 40z, CHARGE OF C.E. 
