PPL Aerodynamics | Questions and Correct Answers | Latest Update 2024/2025

PPL Aerodynamics | Questions and Correct Answers | Latest Update 2024/2025 What are the four forces that act on an airplane in flight? - Answer - thrust (forward) Drag (Backwards) Lift (Up) Weight (Down) When are the 4 forces that act on an airplane in equilibrium? - Answer - During unaccelerated flight What is the relationship between the forces on an airplane? - Answer - thrust = drag lift = weight Bernouli's Law/Principle - Answer -Air travels faster over curved upper surface which causes lower pressure on the top of the surface (high pressure under the wing, low pressure above the wing) Acute angle A - Answer -Angle of attackCritical Angle of attack - Answer -The angle of attack at which an airfoil stalls (loses lift) regardless of the aircraft's airspeed, attitude, or weight. Angle of attack - Answer -"Acute angle A" the angle between the chord line of the wing and relative wind As altitude increases, the indicated airspeed at which a given airp