van Manen, Oosterveld and Witte 



%.-o.a 



ox 



H 1 



looo 500 -^tvj. Chp) 



oA 



—I 



10 OOO 50OO 



Fig. 19 - Yaw rate i/' against rudder angle S and 

 velocity ratio V/U ; V = 9 knots, D„ = 0.357 m 



o6 



20 —6 c °;- 



Ao 



/l 



0.4 

 -1— I 



50OO 



N^(H^) 



Fig. 20 - Yaw rate ^p against rudder angle 5 and 

 velocity ratio VAJ; V = 9 knots, D = 1.10 m 



262 



