Haselton 



of the control forces; degradation in force-generating capability due to motion 

 in other degrees of freedom; the increased importance of unsteady flow effects 

 in the short term application of control forces — is generally lacking. 



In effect, the whole range of problems that have concerned the aerodynami- 

 cist in helicopter and VTOL designs is now facing the hydrodynamicist in the 

 development of the high-maneuverability deep-submergence vehicle. 



REPLY TO DISCUSSION 



F. R. Haselton 



I wish to thank Dr. Skolnick and Mr. Rice for their comments, with which I 

 am fully in accord. 



The time has arrived to open our eyes, roll up our sleeves, and go about 

 the business of producing a work boat capable of effective use in ocean exploi- 

 tation. 



314 



