585 



Table XXII - Time for maxiimjm ria.ina,ge, gaiige above charge 

 d is the depth of the contact beneath the diaphragm; 



d the final central damage: 

 P 



D the damage to the control diaphragm mounted ca. 36° from the vertical. 



Table XXIII - Summary of diaphragm- gauge measurements in 

 the Mach region of intersecting shock vaves 



Lot 4 steel plates Firing depth 10 ft. 

 Total charge weight, 224 gm loose Tetryl 



a/Ratio of mean of 6 and 17 to mean of all maximum depressions for the 

 two 90° shots (23.8 + 0.4). 



