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How does a hot air balloon move?
Hot air balloons have no built-in mechanism for steering or propulsion. It uses the speed and direction in which the wind travels to move. Pilots place the balloon at different altitudes at certain times in the flight to change the direction of the flight path.
What is the science behind a hot air balloon?
Hot air balloons are based on a very basic scientific principle: warmer air rises in cooler air. Essentially, hot air is lighter than cool air, because it has less mass per unit of volume. Therefore, each cubic foot of air contained in a hot air balloon can lift about 7 grams.
How high can an air balloon rise?
The highest that most hot air balloons are allowed to rise today is 3,000 feet, but even though that is standard procedure, there are those that want to see what a balloon could be capable of if it were allowed to reach its maximum potential.
How does a hot air balloon fly physics?
The principle behind hot air balloon physics is the Archimedes Principle which states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object. In helium balloons the buoyant force is created because helium is less dense and lighter than the air surrounding them.
How safe are hot air balloons?
In the aviation world, hot air balloons are an incredibly safe form of flight, and they have become increasingly safe over time. Accidents are uncommon, and fatalities are even rarer. Between 2000 and June of 2016, only 21 hot air ballooning fatalities were reported in the United States.
Can hot air balloons pop?
The balloon itself catches fire with a flash, and in an instant, it bursts and falls as a fireball to the ground, trailing smoke.
What happens if a hot air balloon gets a hole?
What happens if a hot air balloon gets a hole? The balloon would fall to the ground. A hot air balloon stays aloft because of buoyancy; warm air is less dense than the air around it, so it rises, pushing the balloon up.
How long can a hot air balloon stay in the air?
Hot air balloons stay in the air for as long as they can keep their air hot, so as long as they have fuel to burn. Usually, a ride in a hot air balloon can last around four hours.
How hot is the air inside a hot air balloon?
Most balloons will support themselves at 40°F above outside air temperature and launch at 100-125°F above outside temperature. On a 70°F day, a balloon would support itself with internal air at 110°F and launch with internal air temperatures of 170-195°F.
Can a bird pop a hot air balloon?
What happens if a bird flies into a balloon? Balloons are so large that most birds avoid them. The envelope fabric is much tougher than it might appear and a bird would likely bounce off if there were a collision! Balloon manufacturers have performed tests, and it is possible to fly a balloon even with a hole.