Introduction to Stability & Control

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Alpha Aircraft may be statically and 6 5.5 5 4.5 4 3.5 3 dynamically stable 0 10 20 30 40 Gust pitches nose up Time Initial tendency and long-term tendency both are <strong>to</strong> recover from a gust or disturbance
Alpha, Degrees Aircraft may be statically stable, yet 40 20 0 -20 dynamically unstable Longitudinal <strong>Stability</strong> 0 10 20 30 40 Time, seconds
Page 1 and 2: Introduction to Stability & Control
Page 3 and 4: A system is stable if it can recove
Page 5: Alpha Aircraft is in steady level f
Page 9 and 10: Nondimensionalization Lift and pitc
Page 11 and 12: How can a Designer Ensure Longitudi
Page 13 and 14: Relaxed Static Stability • For im
Page 15 and 16: Air Transports, Boeing 747-400 Can
Page 17 and 18: Stability and Control Augmentation
Page 19 and 20: Saab Gripen (JAS-39B) Digital Fly-b
Page 21 and 22: Freestream comes from pilot’s rig
Page 23 and 24: Rudders Rudders: B747
Page 25 and 26: What happens when the aircraft unde
Page 27 and 28: Anhedral is bad for lateral stabili
Page 29 and 30: High/Low Speed Ailerons: B747 Low S
Page 31: …and then it gets complicated

Introduction to Stability & Control

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