Publisher : Ladybird Books Ltd. Loughborough Author : David Carey
Illustrator : B.H.Robinson Published Date : 1967 Printed in : England ISBN No : 0721401295
Introduction
The world has become incredibly small now with aeroplanes. Travelling is so much faster from one country to another in just hours and not days, weeks or months.
This vintage, rare Ladybird book The Aeroplane, describes how an aeroplane works and how it moves in the air. An aeroplane is heavier than air in which it has to fly and this old Ladybird book explains simply how and why an aeroplane works.
It is a complex subject but a very fascinating one.
The Air
The earth’s surface is surrounded by air and it has an atmospheric pressure due to the weight of the air above it. When we move away from the earth’s surface and go higher, the pressure becomes less because there is less air above to press down.
Air is also compressible, which means it is more compressed, or denser nearer to the ground. That is why air at sea level is heavier than the air higher up, the air is more dense at sea level.
These differences in air pressure and density have a very great bearing on the design of the aeroplanes. This Ladybird book will help to explain and better understand how a plane flies in the air.
Lift and Drag
Remember how flying kites in the air requires some strategy where you have to run and holding the string it will rise higher and higher as you pay out the string. Such a thrill!
This is how it works, the upward force where the kite rises is called the lift. With aeroplanes, the lift is essential for flight. It is a useful force where it is obtained partly by the wings and partly by the aeroplane’s forward speed.
Drag is a backward pull which hinders forward motion and has to be reduced to a minimum. This is seen when you grip the string of the kite tightly and draw the kite towards you in the air, you feel a pull as the air tries to hold it back. The drag is a pull and it acts against the direction of flight.
Air speed and ground speed
There are two kinds of speed : flying speed and ground speed.
For example, when you run with a kite at five miles per hour in still air, its ground speed will be five miles per hour because that is the actual speed at which you are pulling it over the ground.
If instead you are running with the kite at five miles per hour against a light breeze, the ground speed will be the same but, because the air is passing the kite at ten miles per hour, the air speed of the kite will be ten miles per hour;that is, the speed at which you are running plus the speed of the air blowing past the kite.
When you stand still in the same breeze with the kite, the ground speed is now nothing, but the air speed is still passing the kite at five miles per hour, so its air speed is five miles per hour.
Ground speed decides how long a aeroplane will take to fly from one place to another. The air speed provides the lifting force and the drag.
Conclusion
I wish I could put in more information but it will be too long. There are so many chapters in this little Ladybird book that describes in detail how the aeroplane works like :
Aeroplane wings, stability and movements of an aeroplane, controlling the aeroplane, taking off, turning, landing etc.
It is simply and clearly explained with very clear illustrations of how the plane works. A reading delight for both adult and child.
An informative old, rare, vintage Ladybird book that is educational for anyone who is interested in flying a plane or to have a career with the planes. An interesting book to add to your book collection.
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