- Question 1 The F 4c Phantom Aircraft Has The Following Characteristic Equation When Cruising At Optimal Cruise Speed I 1 (47.62 KiB) Viewed 24 times
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Question 1 The F-4C Phantom aircraft has the following characteristic equation when cruising at optimal cruise speed (i.e. maximum C/CD) at an altitude of 35.000 ft. (s? + 0.017 s + 0.02)(s2 + 1.74 s + 29.49) = 0 (a) Analyse the characteristics of short period stability mode. (6 marks) (6) Analyse the characteristics of phugoid stability mode. (6 marks) (c) Distinguish the difference the short period and the phugoid mode. (5 marks) (d) To arrive at the mission area faster, it was decided to cruise now at the high speed while maintaining the same altitude. Appraise the effect on the following properties of phugoid stability mode: (i) damping ratio, and (ii) oscillation frequency (8 marks)