1469 
RANGE oF 
DISTURBANCE 
rhe CALCULATED BOUNDARY 
ee OF DISTURBANCE 
CURVES OF 
EQVAL PRESSURE 
MATERIAL APPROXIMATELY 
CORRESPONDING TO A FREE 
SURFACE 
a 
WAVE FRONTS 
) 
CALCULATED AND OBSERVED 
DISTORTION OF A SPHERICAL 
CHARGE 
LOCATION SHOCKWAVE (SEE REF. 4, FIGURE \5) 
PORTSMOUTH ,VA. 
