Introduction to Stability & Control

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How can a Designer Ensure Longitudinal Static stability? Aircraft c.g. Rule #1 : Place the c.g. as far forward as possible - This will cause the nose to drop, if lift increases due to a gust, reducing α, and lift / The opposite will occur if there is downward gust Lift
How can a Designer Ensure Longitudinal Static stability? Aircraft c.g. Tail Lift Rule #2 : Place the horizontal tail as far aft as possible - This will cause the nose to drop, if there is a vertical gust, reducing α, and lift / The opposite will occur if there is downward gust A canard is a tail upstream of the c.g., reduced static stability (move wing aft or c.g. forward to compensate)
Page 1 and 2: Introduction to Stability & Control
Page 3 and 4: A system is stable if it can recove
Page 5 and 6: Alpha Aircraft is in steady level f
Page 7 and 8: Alpha, Degrees Aircraft may be stat
Page 9: Nondimensionalization Lift and pitc
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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