According to information from mainstream websites: The probability of an air crash for civil aviation (passenger and cargo) aircraft in various countries around the world is one in 4.7 million.
According to statistical data (1993-2012), the probability of an air crash occurring among 78 major airlines in the world is 1:4700000. This means that the probability of three air crashes in a year is 1 in 103 million.
Statistical table of causes of air crashes from 1950 to 2000 (percentage):
One of the most significant inventions of the twentieth century is the birth of the airplane. At the beginning of this century, there was a pair of brothers in the United States who made significant contributions to the history of aircraft development in the world. They were the Wright brothers.
1. The birth of the first aircraft
From 1900 to 1902, the brothers conducted more than 1,000 gliding test flights, and finally built the first aircraft that relied on its own power in 1903. The manned flight aircraft "Aviator" 1 was successfully tested. They received the U.S. Congressional Medal of Honor in 1909. In the same year, they founded the "Wright Aircraft Company". This is a great success achieved by mankind in the history of aircraft development.
2. The invention of the dual-engine system
In 1911, the British Short brothers applied for patents for multiple engine designs. Their dual-engine system allows every pilot to not have to worry about the aircraft descending due to engine shutdown. This is a significant advance in aviation safety. The first aircraft built according to Schott's patent was called the "3.2" aircraft.
3. Application of gyro technology
From 1927 to mid-1932, the development of cockpit instruments and pilot equipment made progress, and gyro technology was applied to flight instruments. This rotating flywheel mounted on a gimbal can maintain orientation in space, and thus becomes the basis for various navigation instruments that guide pilots to fly in darkness, rain and snow.