depth curves and from penetration velocity-embedment depth curves after 

 adjusting embedment depth by fluke keying distance. When two flukes 

 yielded about the same results, the narrower fluke was always chosen 

 because its penetration would be less affected by the presence of 

 layering formed through either normal deposition or turbidity currents. 

 Figure A-5 summarized the anticipated performance of the sand (1.5 

 X 3- foot) and clay (2.5 x 5-foot) flukes. The minimum fluke velocities 

 required of the gun system were 200 fps and 183 fps for the sand and 

 clay flukes, respectively. To account for uncertainties involved in 

 the theories used as bases for this analytical study, minimum velocities 

 were set as 275 fps and 225 fps for the sand and clay flukes, 

 respectively. According to Figure A-5, these velocities will result in 

 the following tabulated short-term holding capacities. 



Soil Short-Term Holding Capacity (kips) 



I. Silt 40 



II, Silty sand 47 



III. Dense sand >60 



IV. Clayey silt 35 



V. Carbonate bonded silty clay 53 



28 



