Lang 



> 



T'" H 

 <N 



2o 



Zh 



z< 



o 



z 



2.0 



1.0 - 



0.3 



-£-=0.05 



10 15 



20 



25 



30 



controlled 

 uncontrolled 



5 10 15 20 25 



NONDIMENSIONAL WAVELENGTH, \/V 1/3 



30 



Figure 15. Effectiveness of automatic control in following seas at 

 F y =1.65 



572 



