Savitsky, Roper > and Benen 



The equilibrium equations in side force and yaw moment are 



Y = F + Y„ and N = / Y„ 



R * R R 



which can be combined into 



F = Y - N/ £ 



R 



(1) 



The component of centrifugal force in the x, y plane when the craft 

 has yaw and roll angle of and <f> is 



F = (w/g) (V /R) cos cos V 



For each speed and radius, the quantity Y - N//j^ is plotted as a 

 function of yaw angle for each roll angle and the yaw angles necessary 

 to satisfy Equation (l) are found. At these intersections, the roll 

 moment due to the rudder is found from 



K R = (Y-F)d R 



442 



