Boeing 747
Jumbo Jet is probably the most recognisable jet in the world, it's a real icon of flying. In 1960s Pan Am requested Boeing to create an aircraft twice the size of the Boeing 707, company's flagship at the time. That's why american planemaker in 1965 formed a design team to work on 747 project. Engineers had to create an effective passenger mover and freighter to meet airlines requirements, so the 747's consturction needed to be very flexible. In 1966 Pan Am officially ordered 25 747s and received first 747 only four years after that. Today fifth, and probably the last one, generation of 747 is in production and if we put together all variants of 747, more than 1500 747s rolled out of Boeing's facilities, from which 437 are still operating.