n- STRIP THEORY 



o - SLENDER-BODY THEORY 



+ - EXPERIMENT 



x- MIXED METHOD 



O) 



1 * 



1 > 



p,'. 



SI 







o 



1 1. 







<r *° 



1 t. 

 1 *'. 







X 



1 ''■ 







(M 



1 '■ 







\ 



If? 







_J 



1 ' '• 







X 



\T\*'- 







3: r»- 



It* \ ' 



i / >i_ 



7+ + 







o 



ITwg 





^^^tTTTrgT 





^^ 





"^^~ 



0.0 1.5 3.0 4.5 



WRVE-LENGTH RATIO 



Figure 18 - Heave and Pitch Amplitudes of SWATH 6A in 

 Following Seas at 20 Knots 



6.0 



33 



