Tuesday, 4 July 2017

How do aeroplanes fly?

Have you ever wondered how planes fly? How aeroplanes are so heavy but can stay in the sky? Well this explanation will tell you.
 
Lift is a force that holds the plane in the air and it works against weight.  Drag is generated by every part of the airplane and drag works in the opposite direction to thrust.   Weight is the same as gravity, it pulls objects to earth and it works in the opposite direction to lift.  Thrust is a force which moves an aircraft through the air and it works against drag.

How planes get off the ground is because of lift and thrust.  Lift gets the plane off the ground and into the sky and thrust moves the plane forward.  How planes stay in the air is because of thrust and lift.

If you're wondering how planes go side to side and change directions well this is how - objects stay still or move in the same direction or at the same speed unless it has an unbalanced force applied to it.  Planes land because weight and drag bring the plane down because they are stronger than the force of lift and thrust to make this happen.

So in conclusion it's obvious that airplanes need to have the four forces which are lift, weight, drag, and thrust to fly. If an airplane doesn't have these forces it can not fly or land.

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