Fact Box

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The Dreams of Flying

Man has long wanted to fly. He saw birds, envied them and tried to imitate them. Over the ages, countless attempts were made; men constructed wings, fastened them to their arms and legs and jumped off towers and hill tops. These "birdmen" flapped their wings for a short space of time and then fell to the ground.

What was not realized in those early years was that birds have muscles very much stronger, in proportion to their size, than men. Human limbs cannot provide sufficient strength to lift the body off the ground. The secret of flight did not lie in the making of wings, but in discovering the right kind of power, and how to use it.

In the 18th century, the invention of the hot air balloon by the Montgolfier brothers of France was seen as a great step forward. But balloons and cigar-shaped airship, which was invented slightly later, did not solve the problem of flying because they had no means of power or control. So the difficulty remained: a true flying machine which was heavier than air and capable of carrying people was still to be invented. Experiments were carried out in many countries, sometimes with models driven by steam engines, but these were too heavy to be used in an aero plane with a pilot. The answer finally came at the beginning of the 20th century with the invention of the internal combustion engine—the kind used in motor cars. Here at last was powerful, yet comparatively light engine, driven by petrol and capable of being fitted into an aero plane.

In 1903, two Americans, the brother Wilbur and Orville Wright flew a powered aero plane for the first time. Their success encouraged designers everywhere. Although there were now newer, different problems, mainly to do with safety and the training of pilots, progress was rapid. These were exciting days and interest was intense. The age of the aero plane had arrived.

Short Answer Questions

  1. What happened to the early "birdmen"?
  2. What cannot the human limbs provide to make them fly?
  3. Did the invention of the hot-air balloon solve the problem of flying? Why?
  4. What should a true flying machine be able to do?
  5. When did the age of aero plane arrive?

(Keys.)