Bow and Stern Waves and Small-Wave -Ship Singularities 



On the modification Dr. Eggers proposed, I would like to point out that his 

 suggested source plus the downward infinite line of xx quadrupoles is the uni- 

 form downward line distribution of the no-wave singularities which are com- 

 posed of z -direction doublets and xx quadrupoles (mentioned in my present 

 paper). As it is explained in the present paper, we can form some interesting 

 no-wave singularity distributions. As for his suggested no-wave singularity 

 distribution, I also wonder what kind of ship shape we will get even if we con- 

 sider cutting off the quadrupole lines from the keel. Since we neglected the vis- 

 cosity in our problem, the shape which not only reduces the wave resistance but 

 also prevents the separation is most interesting to us. 



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