Dagan and Tutin 



REPLY TO DISCUSSION 



M. P. Tulin 



Hydronautias J Inoorporated 

 Laurelj Maryland 



The wave-breaking resistance is undoubtedly similar to the 

 spray resistance rather than to the wave drag. It is a local phenome- 

 non related to the shape of the body. The energy is not radiated, 

 but dissipated locally. On this ground, the theoretical analysis pre- 

 sented in the paper is based on a model of a semi- infinite body, 

 with neglect of the downstream conditions. 



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