401 



0.CX3I « » 0.01 2 



0.1 2 9 I 2 S 10 



Charge Weight W in pounds 



* 100 2 * 1000 



Figure n - Rise E of the Gas Globe Formed by IV Pounds of Tetryl or TNT 

 Detonated at a Depth Z below the Surface of the Sea of Infinite Depth 



H is the rise of the center of the globe from the time of detonation up to the time of the 

 first peak recompression; both H and Z are expressed in terms of R^, the intervening maximum 

 radius. Curves are shown for three values of Z. For flj see Figure U or Equation [18]. 



2 4 6 8 10 12 14 16 



Figure 12 - Curves for Estimating the Rise H of a Gas Globe at a 

 Distance Z above the Bottom of the Sea 



The rise is from the time of detonation up to the time of the next peak recompression. R^ 

 is the intervening maximum radius in feet; p^ is the total hydrostatic pressure in atmos- 

 pheres or 1 + d/33 where d is tte depth of water in feet at the point of detonation. Curves 

 are shown for four values of 2/^2. For R2 see Figure /, or Equation [I8]. The curves are 

 drawn on the assumption of infinite depth; they are fairly accurate if the gas globe is at 

 least 5/^2 below the surface. 



