The Invention of the Hot Air Balloon It is generally believed that in November 1783, the French Montgolfier brothers first invented the hot air balloon and achieved the first manned flight. They discovered that hot air is lighter than air and that hot gas rises on its own.

2024/05/0621:00:32 story 1570

The invention of hot air balloon

It is generally believed that in November 1783, the French Montgolfier brothers first invented the hot air balloon and achieved the first manned flight.

They discovered that hot air is lighter than air and that hot air rises automatically. Taking advantage of this property of air, they sealed the hot air and allowed part of the air to flow out of the sphere through the opening at the bottom of the balloon. When the weight of the gas in the balloon plus the total weight of the equipment and passengers was less than the weight of the air displaced by the balloon , the hot air balloon will rise under the buoyancy of the air.

Manned hot air balloons usually consist of a sphere, a hanging basket, a heater and a ground blower. The sphere is an airbag with a diameter of sixty or seventy basketballs, made of nylon and other man-made fiber fabrics. This material is treated with multiple layers of paint beforehand and will not leak. There is an air inlet at the bottom of the sphere, closest to the flame. It is made of fabric that is resistant to high temperatures and can prevent burning.

The sphere is connected to the hanging basket through nylon ropes and stainless steel wire ropes. The hanging basket is used to store experimental equipment, fuel and passengers. The heater is just above the hanging basket, close to the air inlet of the sphere.

When a hot air balloon takes off, an engine drives a wooden propeller to blow the air. When the ball is almost filled with air, a heater is used to heat the air in the ball, which generates buoyancy and drives the hanging basket up into the sky. Usually the heater also has an emergency nozzle. When there is an urgent need to climb over ground obstacles, the emergency switch can be turned on at the same time, and the flame will immediately increase, causing the hot air balloon to rise rapidly.

Hot air balloons

Hot air balloons are low-cost, economical to use, and have simple flying techniques. In addition to being used for aviation sports training, competitions and science popularization activities, they can also be used for aerial sightseeing, photography, atmospheric sampling, geodesy, scientific experiments, lifting heavy objects, Border lookout, etc., have a wide range of uses.

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