I. Introduction
The first flight by plane was made at the end of 1903 by brothers Orville and Wilbur Wright. The plane had a gasoline engine and covered approximately 40 meters. It was the beginning of a huge breakthrough, but the aircraft was initially developed for sports rather than transportation. The development of transport aviation was interrupted by the world wars. In the First World War, aircraft with internal combustion engines and propellers began to be used, in the second, even a jet aircraft was used for the first time instead of propeller aircraft. This was subsequently used for civilian transport after the war. After World War II, bombers were used to transport passengers. However, these proved to be inappropriate. Especially due to the noise and discomfort of the passengers. Britain was the first to produce jets, followed by the American company Boeing. In 1958, the company created the Boeing 70727. At the end of the , Europe created its first Airbus A300 aircraft, in the development of which France, the United Kingdom, Germany, and Spain participated. 1 Both companies, Boeing and Airbus, are still active in the production of commercial aircraft.