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Is lift equal to thrust?
Assuming a straight and level flight, lift must be equal to weight and drag must be equal to thrust. This is what happens if this equilibrium is violated: If lift becomes greater than weight, then the plane will accelerate upward. If the weight is greater than the lift, then the plane will accelerate downward.
What happens when the lift is larger than the weight of the plane?
Lift works opposite of weight. Thrust works opposite of drag. When the forces are balanced, a plane flies in a level direction. If gravity and drag are bigger than lift and thrust, the plane goes down.
Is lift greater than weight during climb?
In straight and level flight, lift is approximately equal to the weight, and acts in the opposite direction. In addition, if the aircraft is not accelerating, thrust is equal and opposite to drag. In straight climbing flight, lift is less than weight. In straight descending flight, lift is less than weight.
How does increased thrust affect lift?
For example, if a plane’s engine produces more thrust, it will accelerate. The acceleration increases air speed past the wing, which increases lift so the plane gains altitude.
How can lift be less than thrust that?
The lift is provided by the wings. Their purpose is exactly to create a lift force (upwards force) while requiring relatively little thrust (forwards force). How well they do this is expressed by their lift-to-drag ratio (L/D ratio).
How does lift and thrust work opposite of drag?
Thrust works opposite of drag. When the forces are balanced, a plane flies in a level direction. The plane goes up if the forces of lift and thrust are more than gravity and drag. If gravity and drag are bigger than lift and thrust, the plane goes down.
How can wings be less than thrust that?
Indeed, if the hill is gentle, most people can push the car up the hill, while most people cannot single-handedly lift a car up. Wings work by pushing air down, and by pushing the air down at a relatively shallow angle (by going forwards real fast), you need less force to go forwards than to lift the plane.
How does the thrust of a plane grow?
The thrust needs to grow by weight $\\cdot$sin($\\gamma$), where $\\gamma$is the flight path angle. If the A-320 had enough thrust to lift all its weight, it could take off vertically, flying in a nose-up, vertical attitude.