Plate 
DISCUSSION 
M. Huther 
Bureau Verttas 
Parts, France 
I first thank the author for the interesting paper he presents 
today. 
In the calculation of springing of ships a good knowledge of 
the energies in the range of high frequencies (i.e. w ~1.50 rad-s~! ) 
is necessary, solI shall be pleased to know the opinion of the author 
on the better sea state representation to be used in this case, 
DISCUSSION 
Ri.) Lournan 
Bureau Verttas 
Parts, France 
As described at a conference at the "ATMA 1972" "Sollicita- 
tions externes et internes des navires a la mer'' (J. M. Planeix, M. 
Huther et R. Dubois), and in a paper in the International Shipbuilding 
Progress of August 1972. ''Wave Loads - a correlation between cal- 
culations and measurements at sea'' (J. M. Planeix Ph. D.), Bureau 
Veritas using classical spectral sea state representation has found 
a good correlation between calculated and measured ship behaviour. 
So Iask to the author if such calculation and comparison had 
been done with dominant wave sea state representation? 
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