body length forebody length forward of rotation center (Fig. 8) nose length = rolling moment, coefficient C, = £/ (p* U^ /2)Sb vortex wake wave length Mach number pitching moment, coefficient Cm=Mp/(PooUl/2)Sc yawing moment, coefficient Cn=n/(p00 U00/2)Sc = normal force, coefficient CN=N/ (p^ C/i/2)S = nose tip roll rate = pitch rate Reynolds number based on dmax and freestream conditions; usually Re = Rd Reynolds number, Rd = U^d/v^ reference area, S = ird /4 reference area ( = projected wing area) time velocity axial body-fixed coordinate (distance from apex) side force, coefficient CY=Y/(PooUx /2)S angle of attack da/df, C^ = d C m / d j > ' l 0 / U ( X ) sideslip angle rotation of plane of symmetry of forebody vortices (Fig. 8) cone half-angle 6A = apex half-angle p = air density = roll angle 5 = three-dimensional separation angle (Fig. 15) a' = total angle of inclination (Fig. 8) v — kinematic viscosity oj = angular rate