function [CnB_b,CnB_v,CnB]=CnB2(CnB_w,SBS,KN,KRl,lb,S_w,b_w,CyB_v,l_v,a_v,Z_v);


CnB_b=-57.3*KN*KRl*SBS*lb/(S_w*b_w);		%eqn 7.16

CnB_v=-CyB_v*(l_v*cos(a_v)+Z_v*sin(a_v))/b_w; %eqn 7.17

CnB= CnB_w+CnB_b+CnB_v;