
It has been a long -cherished dream of man to be able to fly like a bird.Man cannot yet fly liked a bird ,but can fly in an aeroplane.The aeroplane is one of the greatest marvels of science .Travelling in the sky is really a wonderful thing.We are glad when we travel in an aeroplane.
The aeroplane was invented in1903 by two American brothers,Wilbur and Orville Wright .Before the invention of the aeroplane ,man used the balloon and the air-ship.The balloon and the air-ship were at the merrcy of winds ,but the aeroplane can be moved to any direction.Since 1903,there have the jet plane which flies faster than sound and higher than the Himalayas.
The body of an aeroplane is cylindrical in shape.The front part is called the cock-pit .The driver of the aeroplane ,who is called pilot ,sits in the cock-pit .At the head of the aeroplane ,there is a propeller.It looks like an electric fan and moves very fast.It is driven by and engine.An aeroplane has generally two engines.If one engine fails,the other engine starts working .There is a flap which takes the aeroplane up or down.There is also a rudder.The flap and the rudder can be seen at the back of the aeroplane .The pilot holds a lever which moves the flap;he puts his feet on a bar which moves the rudder .The body of an aeroplane has a wing on each side.Some aeroplanes have two sets of wings.An aeroplane has three wheels , a small wheel in the front and two wheels at the back.The wheels are used for landing .Aeroplane are maintained in the air by the buoyancy of air.
The aeroplane is fastest means of travelling .It carries men quickly from place to place.We can reach England and America in few hours.It has bought distant countries nearer.It has helped the people of different countries to be close to one another. The aeroplane carries goods and mail from one place to another.It is very useful in a mountainous country like Nepal where there is shortage of roads.
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