Pressure (1000 p.s.i.) 
Pressure (1000 p.s.i.) 
20 
16 
12 
60 
‘.< Theoretical 
Fig. 3 - Average peak pressures, uncorrected ~ 
by extrapolation, recorded by piezo gauges } 
in the plane of intersection of shock waves 
produced by two 1700 g. pentolite charges 
4 feet from the gauges. 
Single 1700 ¢. 
charge 
. CO (degrees) 
ee 
40 50 60 70 80 90 
10 
Theoretical <2. 
Fig. 4 =. ds in Fig. 3, except that the charges 
were 50 g. of tetryl kept 2 feet distant 
from the single gauge used in this series. 
Single 50 g. 
charge 
1205 
Ratio to single 1700 g. charge 
Ratio to single 1700 g. charge 
