Anna University , Chennai
Department of B.E-Aeronautical Engg
5 Semester
AE2301 Flight Dynamics
(Regulation 2008 )
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Content:
UNIT-1
CRUISING FLIGHT PERFORMANCE
Geometric altitude
Performance
Atmospheric gases
Forces and moments acting on a flight vehicle
Types of drag
1. Pressure drag
2. Skin friction drag
3. Parasite drag
4. Induced drag
5. Wave drag
Drag polar
Minimum drag condition
Problem
UNIT-2
MANOEUVERING FLIGHT PERFORMANCE
Range for propeller driven airplane
Range for jet propelled airplane
Endurance
Endurance for propeller driven airplane
Maximum climb angle
Maximum rate of climb
Level turn
Constraints on load factor
Expression for maximum load factor
Structural limitation
1. Limit load factor
2. Ultimate load factor
Take off performance
Loading performance
Landing distance
Gliding flight
UNIT-3
STATIC LONGITUDINAL STABILITY
Static stability
Dynamic stability
Statically unstable
Neutrally stable
Requirements of control system
Criteria for longitudinal stability
Contribution of wing to longitudinal static stability
Contribution of tail to MCG
Contribution of tail
Total pitching moments about CG
Static longitudinal control
1. Stick fixed condition
2. Stick free condition
Elevator hinge moments
Aerodynamic balancing
Set-back hinge
Horn balance
Sealed nose balance
Geared tab balance
Power effects on static and longitudinal stability
UNIT-4
LATERAL AND DIRECTIONAL STABILITY
Lateral stability
Adverse aileron yaw
Rudder requirements
Asymmetric power
Spin recovery
Condition for static lateral stability
Aileron effectiveness
Rudder lock
Dorsal yin
UNIT-5
DYNAMIC STABILITY
Dynamic effects
Directional stability
Spiral divergence
Dutch roll
Autorotation
Spin
Flat spin
Angle of incidence
Routh’s descriminent
Directional stability
Aileron reversal
Phugoid
Side slip angle
Lateral stability
Components contributing for lateral stability
Vertical tail
Fuselage
Dorsal fin
Vertical fin
Side slip
Contribution of components to directional stability
1. Swept back wing
2. Dihedral wing
Contribution of fuselage
Dorsal fin and vertical fin
Lateral static stability
Plan of symmentry
Effects of dihedral
Advantages
Disadvantages
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