Generating Lift AirfoilsĪs viewed as a cross-section, the upper surface of an airfoil has more camber (curve) than lower surface. Drag is a horizontal force acting parallel to flight path, and is opposed to thrust. Dragĭrag is the natural resistance of an aeroplane while it is moving through air it is partially controlled by pilot. Thrust is an artificial force manipulated by pilot and generated through engine(s) that acts horizontally, parallel to flight path thrust opposes drag-when airspeed constant, thrust equals drag when airspeed accelerating, thrust is greater than drag and when decelerating, drag is greater than thrust. Weight is a natural (uncontrollable) force generated by gravity (g force) that acts perpendicular to earth’s surface theoretically, weight is exerted through the centre of gravity, and opposes lift. Lift opposes weight-during level cruise, lift equals weight during climb, lift is greater than weight and during descent, weight is greater that lift.
The theoretical concept that summarizes the direction and force of lift is the centre of pressure. Lift is an artificial force manipulated by pilot it is generated through the wings, acts perpendicular to the relative wind and wingspan. Students / Resources / Classroom / Commercial Pilot Groundschool /.
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