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Hot Air Balloons

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  • 1. Why do people use them?
  • 2. Hot air balloons are used to give tours,  because they can give a good view  Can see a birds eye view  Or can be used just for fun!
  • 3. A hot air balloon has three essential parts: the burner, which heats the air; the balloon envelope, which holds the air; and the basket, which carries the passengers. Who: Joseph and Etienne  de Montgolfier  When:1783  Why: they invented the hot air balloon on accident!
  • 4. Hot air balloons are not exactly They depend safe because on wind you can not steer it yourself. Hot air is lighter Most of them then cooler air use a whicker so that is how basket to hold they rise! passengers
  • 5. Hot air balloons were discovered in France in 1783.  It was discovered that a fabric bag filled with hot air would rise.  Initially Balloons without any Passengers were sent up.  Then, animals of all sorts were used for experimenting like a  sheep, rooster, and duck, to be sent high up. Finally, they sent up a balloon with two men in it. It traveled over Paris for  5.5 miles. It stayed up 23 minutes. This was the first attempt made by man to fly. Bravo!  Balloons have been important in science as they have helped us study  the weather and the atmosphere. Hot Air Balloon has a Special basket for passengers to sit in it.  It has flying wires to attach the basket to the balloon.  The skirt helps direct the hot air into the balloon.  Each long section of the Hot Air Balloon is called the gore.  Smaller pieces of the gore are called panels.  A Parachute is placed right at the top of each Hot Air Balloon. 
  • 6. Balloon pilots need a commercial pilot's license (fixed-wing). They must › have at least 35 hours of flight instruction, attend ground school for basic aviation training, pass a written test for hot-air balloons and have a flight check from a Federal Aviation Administration official. According to the FAA, balloons must meet air-traffic control requirements if › they are in a controlled air-space, and pilots must have radio contact with controllers. There are no official safety requirements for passengers, but passengers › should know with whom they're flying and their qualifications. Accidents are rare, especially in the Northwest. The only serious injuries for › the area -- found in a check of National Transportation Safety Board balloon accident reports back to 1984 -- were a broken leg and a broken ankle, both from rough landings. Hot air balloons don't fly in the rain because balloon heat can cause water › to boil atop the balloon, and boiling water destroys the fabric. Area balloon operators can carry from two to 10 passengers at a time, › depending on balloon size. Children under 5 usually aren't allowed. › Ballooning is not a silent sport. There are some quiet moments, but those › burners are noisy. Balloonists dress like hikers: Pants, sturdy flat shoes and layers of shirt, › sweater, jacket, for example. Carry cameras and lots of film.
  • 7. Described as one of the most serene experiences  One of the closest experiences to flying  warmer air rises in cooler air. Essentially, hot air is  lighter than cool air, because it has less mass per unit of volume. A cubic foot of air weighs roughly 28 grams (about an ounce). If you heat that air by 100 degrees F, it weighs about 7 grams less. Therefore, each cubic foot of air contained in a hot air balloon can lift about 7 grams. That's not much, and this is why hot air balloons are so huge -- to lift 1,000 pounds, you need about 65,000 cubic feet of hot air(howstuffworks.com).