Section 5: Theory of Flight

PRINCIPLES OF FLIGHT

  • 1 Bernoulli's Principle
  • 2 Newton's Laws

FORCES ACTING ON AN AEROPLANE

  • 1 Lift
  • 2 Drag - Induced/Parasite/Profile
  • 3 Relationship of Lift and Drag to Angle of Attack
  • 4 Thrust
  • 5 Weight
  • 6 Equilibrium
  • 7 Centre of Pressure (C of P)
  • 8 Centrifugal/Centripetal Forces
  • 9 Forces Acting on an Aircraft during Manoeuvres

AEROFOILS

  • 1 Pressure Distribution about an Aerofoil
  • 2 Relative Airflow and Angle of Attack
  • 3 Downwash
  • 4 Wing Tip Vortices
  • 5 Angle of Incidence

PROPELLERS

  • 1 Propeller Efficiency at Various Speeds
  • 2 Fixed/Variable Pitch Propellers
  • 3 Torque/Slipstream/Gyroscopic Effect/Asymmetric Thrust
  • 4 Propellor Handling/Care

DESIGN OF THE WING

  • 1 Wing Planform
  • 2 Area/Span/Chord
  • 3 Aspect Ratio
  • 4 Camber
  • 5 Laminar Flow
  • 6 Sweepback
  • 7 Dihedral/Anhedral
  • 8 Wash In/Wash Out
  • 9 Slots/Slats
  • 10 Wing Fences/Stall Strips
  • 11 Spoilers
  • 12 Flaps
  • 13 Vortex Generators
  • 14 Winglets
  • 15 Canards

LOAD FACTOR

  • 1 Centrifugal Force/Weight
  • 2 Load Factor - Linear/Turns
  • 3 Relationship of Load Factor to Stalling Speed
  • 4 Structural Limitations
  • 5 Gust Loads

STABILITY

  • 1 Longitudinal, Lateral, Directional Stability
  • 2 Inherent Stability
  • 3 Methods of Achieving Stability, Effect of C of G Position

FLIGHT CONTROLS

  • 1 Aeroplane Axes and Planes of Movement
  • 2 Functions of Controls
  • 3 Relationship Between Effects of Yaw and Roll
  • 4 Adverse Yaw/Aileron Drag
  • 5 Static/Dynamic Balancing of Controls
  • 6 Trim/Trimming Devices
  • 7 Autopilots – axes and modes of control available
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