(Solved): The Boeing B-747 is typical of a large classical transport aircraft and the following characterist ...

The Boeing B-747 is typical of a large classical transport aircraft and the following characteristics were obtained from Heffley and Jewell (1972). The flight case chosen is representative of typical cruising flight at Mach 0.65 at an altitude of 20,000 ft. The longitudinal characteristic equation is A(s) = s³ + 2s + 4s³ +8s² + 3s +6=0 1. Find its corresponding roots. 2. Describe the stability mode characteristics.