Boeing 777-200

In 1985-1989 Boeing considered several options for further development of the 767 families of aircraft in the direction of increasing the number of seats and flight range. At the end of 1989, a scheme of an airplane with a wingspan of about 60 m, a fuselage diameter of 6.1 m, two turbofan engines with a thrust in the class of 32-35 ts and a number of seats 350-410 was chosen. This particular variant, designated 777, was developed until mid-October 1990 when United Airlines announced the order of 68 aircraft, and Boeing announced the official start of the development program, the cost of which was estimated at almost $ 5 billion. Almost 20% of serial production work falls on the Japanese companies Mitsubishi, Kawasaki, and Fuji.

The design of the aircraft uses the most advanced scientific and technical solutions, its design is fully completed using computer-aided design (CAD). This is the first Boeing aircraft with an electronic remote control system (EMDS). One of the features of the aircraft is the presence of a vertical deflection system for the end sections of the wing consoles (6.48 m long), which facilitates movement around the airport. This system is installed at the request of the customer.

An experimental Boeing 777-200 aircraft with Pratt & Whitney PW4084 engines completed its first flight on June 12, 1994. Subsequently, aircraft with General Electric and Rolls-Royce engines were tested. Certification of the aircraft (with turbofan engine PW4084) was completed in April 1995, after which the aircraft went into operation. The aircraft is also certified by ETOPS standards, which allow a twin-engine aircraft to fly to the alternate aerodrome within 180 minutes. upon failure of one engine. Based on the original aircraft, modifications 777-200IGW, 777-300, and a variant 777-100X with a shortened fuselage designed to carry 250 passengers over a distance of 16,000 km were developed.

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 1995. By the beginning of 1997, 318 aircraft were sold, 44 were delivered. The price of the aircraft is 128-146 million dollars.

Specifications

  • Modification: Boeing 777-200
  • Wingspan, m: 60.93
  • The length of the aircraft, m: 63.73
  • The height of the aircraft, m: 18.52
  • Wing Area, m2: 427.80
  • Weight kg: empty equipped aircraft 135870; maximum take-off 262470
  • Engine type: 2 turbofan engine Pratt Whitney PW4084
  • Thrust, kgs: 2 x 33600
  • Maximum speed, km / h: 965
  • Cruising speed, km / h: 905
  • Practical range, km: 8920-11100
  • Practical ceiling, m: 13100
  • Crew: 2
  • Payload: 305-328 passengers in the cabin of three classes, 375-400 passengers in the cabin of two classes, or 440 passengers in the economy class.
Graduated from Embry-Riddle Aviation University with a master's degree in aviation science. He began his career as an aviation researcher in local periodicals. Has a pilot license. Now are the author and developer of the Plane Worlds.