SKY OF USA

    
               

 


 
     The fastest and the safest way of traveling, air travel is definitely the most popular kind of traveling across the USA. But airplane flying was not always as comfortable as it is now. The earliest planes were biplanes featuring two sets wings and their maximum speed was just 60 miles an hour. The pilots would sit or lie on the wings in the open air and naturally, during bad weather, rain or snow, it was simply impossible to fly. Later, during the World War I, a series of mechanical upgrades changed airplanes and as a result monoplanes took the place of biplanes. Pilots flew inside the covered cabin, but still these planes were very small. Nowadays modern jets make air travel possible for all people. No place in the world is more than 24 hours away by jet. Further improvements made the cost of flying more affordable and much safer than it used to be. People never used to eat, sleep or watch movies on airplanes, but now these things are a normal part of air travel.
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