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HOW AIRPLANES FLY ?

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how do Airplanes fly?

Airplanes fly?
Over the last few decades,airplanes have certainly revolutionnized the way we travel.
But, have you ever thought of how it flies?
HOW AIRPLANES FLY?
How does it navigate?
We will get answers for these questions from this video in a simple, yet scientific way.
We will also explore how the flight is controlled in real-time manner.
First, let's look at some history.
Many crazy flying machine designes were tested in the
nineteenth century because of mankind's quest to fly.
Finally one attempt succeeded.
Yes, you are right.
It was the flight of the wright brothers.
Their aircraft was a success thanks to an interesting phenomenon of physics.
The airfoil technology.
The wing of the aircraft was able to produce a lift force in an ingenious way.
The wings had a curved shape.


This shape pushes the gushing air downwards as shown.
Newton's third law of motion comes into picture here.
If the wing pushes the air downwards, the air should also push the wing in the opposite direction with an equal magnitude.
This eventually results in the lift force and the airceaft will be able to fly off the ground.



Aircraft wing flaps small

Even today the airplanes make use of the same airfoil technology to fly, but with a highly aerodynamically optimised airfoil shape.



Aircraft wing flaps full

Thrust force makes an airplane move forward.
To produce this thrust, a turbofan engine is used in modern civil aviation aircraft.  
Reaction force of high-velocity exit jet gives the turbofan engine thrust force.
To produce this high velocity jet, the incoming air is passed through a compressor, combustion chamber and turbines stages.
The engine also drives the thrust force form the fans reaction.
Thus the turbifan engines produce a great amount of thrust and make the airplane move forward.
As discussed earlier when the airplane moves forward the relatively flowing air over the wing produce a lift force on the wings.
Just pause for moment here and have a closer look at the wing.
You can note that the wing of a modern airceaft is a collection of different parts.



SPOILER



the wing of a modern airceaft is a collection of different parts

www.LearnEngineering.org



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