Effects of Controls Flashcards
What is horizon?
Where the sky meets the ocean
What is attitude?
The position of the aircraft’s nose in relation to the horizon
What is an axis?
An imaginary line about which a body rotates
Aerofoil
A cross-section of the wing (essential to the production of lift)
Chord line
A straight line joining the leading edge and trailing edge of the aero foil
Relative airflow
Airflow relative to an aero foil created by movement of the aero foil. Always opposite to the aero foil’s
direction of motion (the flight path)
Angle of attack
The angle between the relative airflow and the chord line
Centre of gravity
The point at which the aircraft would balance if it was suspended at that point. A position through which the aircrafts total weight acts
Centre of pressure
The focal point of lift. A position through which total lifting force produced by the aero foil acts
Camber
The curvature of the upper surface on the aero foil
Static pressure
Pressure which is felt from the weight of the atmosphere acting on an object
Dynamic pressure
The extra pressure which is felt on an object in motion through the atmosphere
Lift formula
L = CL ½ ρ V2 S (Pilot’s lift formula: L α AoA x IAS)
Bernoulli’s theorem
Total pressure = Static pressure + dynamic pressure
Lateral axis
Primary effect: Pitch
Control surface: Elevator
Secondary effect: Indicated airspeed and altitude
