The Boeing 777 Worldliner is a long-range, low-wing, twin-engine, low-wing, American-made passenger jet. The drive is provided by two Pratt and Whitney PW4000 or Rolls-Royce Trent 800 or General Electric GE90 engines. The flight of the prototype took place in 1994, and serial production started in 1995 and is still going on. By August 2017, 1,512 copies of this aircraft had been produced. The unit price of the Boeing 777 varies from $ 261 million to $ 300 million, depending on the version. The Boeing 777 is currently the largest twin-engine passenger plane in the world, with great emphasis on low fuel consumption, ease of use and the use of very modern avionics. It is also the first Boeing passenger plane to use a fly-by-wire system. The machine is built in two basic versions: 777-200 and 777-300, which differ in the length of the hull by about 10 meters. A civilian transport version (Boeing 777F) was also created, which made its commercial debut in 2008. Depending on the version, the Boeing 777 can take up to 451 passengers on board.