Take off 

On average, and in the United Sates alone, 45,000 flights fly across the United States each day. When you leave the USA and look globally, 2.8 billion people travel by airline each year. That makes 16.4 million airline flights each year. Additionally, planes carry an incredible amount of ‘stuff’, 44,500,000,000 pounds (about 20184844000 kg) of cargo each year. Planes are an essential source of transportation and on average can travel 9,500 miles (about 15288.77 km) without stopping for gas, but do you know how they are flown? Or how the engines work? Keep reading and you will find out!