A New Appraisal of Strip Theory 



0.6 



0.9 



1.2 

 X/L 



150 

 + 100 

 + 50 UJ 



UJ 



cc 

 "^ 



Q 



-100 

 -150 



1.6 

 1.4 

 1.2 

 1.0 

 0.8 



3 



0.6 

 0.4 

 0.2 

 0.0 



0.6 



0.9 



1.2 

 X/L 



+150 

 + 100 

 + 5oS 



UJ 



cc 

 ^ 



UJ 

 Q 



50 " 

 -100 

 -150 



1.5 



Fig. 32 - Model D in directly astern seas, pitching 

 non-dimensional amplitude and phase angle vs 

 wavelength to shiplength ratio 



221-249 O - 66 - 20 



289 



