Theory of Flight
Purpose of wing flaps Steeper approaches to a landing without increasing airspeed Control yaw What is the purpose of the rudder on an airplane 00:18 01:40 Flaps Which is not a primary flight control surface? Lateral The elevator controls movement around which axis? Flaps Increasing angle of descent without increasing airspeed Primary flight controls? The effectiveness of each control surface increases with speed because there is more flow over them. Spoilers Which device is a secondary flight control? Flaps allow increase in angle of descent without increasing airspeed Trim systems Relieve pilot of the need to maintain constant back pressure on flight controls? Thrust, lift, weight, drag The four forces acting on an airplane in flight are? During unaccelerated level flight When are the four forces that act on an airplane in equilibrium? Lift equals weight and thrust equals drag What is the relationship of lift, drag, thrust, and weight when the airplane is in straight level flight. 00:01 01:40 Bernoullis Principle Air traveling faster over the curved upper surface of an airfoil causes lower pressure of the top surface Angle of attack Angle between the chord line of the wing and the relative wind. Lift Vector
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