3) An airplane has the following stability and inertia characteristics: W = 664000 lb Ix = 12.710 slug. ft Iy = 30.510 slug. ft I = 43.1106 slug. ft h = sea level S=5500 ft b=195.68 ft c = 28.3 ft V = 380 ft/s C = 1.11 Cp = 0.102 Cla = 5.7 1/rad La Cp = 0.66 1/rad Da Cma=-1.26 1/rad Cma = -3.2 1/rad Cmq = -20.8 1/rad a) Find the frequency and damping ratios of the short- and long-period modes. b) Find the time to half-amplitude for each mode. c) Discuss the influence of the coefficients Cmq and Cmc on the longitudinal motion. ma