The Boeing 777-300 is an extended version of the Boeing 777-200 extended by 10.3 m. Preliminary studies of the new modification under the designation 777 Stretch were carried out in 1994. The aircraft program began in June 1995, and in October its layout was finally chosen. In March 1997, the construction of the first experimental aircraft began, and in 1998 flight tests were completed and the first aircraft was delivered.
The main customers of the 777-300 are airlines in the Pacific – Japan Airlines, Korean Air, Katya Pacific, Malaysia Airlines, and others. The 777-300 aircraft in terms of passenger capacity and flight range corresponds to Boeing 747-100 and 747-200 aircraft but surpasses them by 30% in fuel efficiency.
The aircraft is equipped with an EFIS digital avionics system manufactured by the American company “Honeywell” with five flat color liquid crystal displays for displaying flight information, a digital system for monitoring the operation of on-board systems and the power plant EICAS (three flat liquid crystal displays), an “electronic library” with a database about all aircraft systems and equipment. There is an on-board system for diagnosing the condition of on-board systems. A TCAS flight collision avoidance system is installed on the aircraft. All avionics comply with the ARINC 629 standard. It has been mass-produced since 1996. The price of the aircraft is 151-170 million dollars.
- Modification: Boeing 777-300
- Wingspan, m: 60.93
- Aircraft Length, m: 73.86
- The height of the aircraft, m: 18.52
- Wing Area, m2: 427.80
- Weight kg: empty loaded aircraft 157200; maximum take-off 299300
- Engine type: 2 turbofan engine Pratt Whitney PW4090
- Thrust, kgs: 2 x 40860
- Maximum speed, km / h: 965
- Cruising speed, km / h: 905
- Practical range, km: 10550
- Practical ceiling, m: 13100
- Crew: 2
- Payload: 368 passengers in the cabin of three classes, 450-480 passengers in the cabin of two classes, or 550 passengers in the economy class.