The Boeing 777 is a long-range, wide-body twin-engine airliner built by Boeing Commercial Airplanes. The world's largest twinjet and commonly referred to as the "Triple Seven", it can carry between 283 and 368 passengers in a three-class configuration and has a range from 5,235 to 9,450 nautical miles (9,695 to 17,500 km). Distinguishing features of the 777 include the six wheels on each main landing gear, its circular fuselage cross section, the largest diameter turbofan engines of any aircraft, the pronounced "neck" aft of the flight deck, and the blade-like tail cone.
As of May 2008, 56 customers have placed orders for 1,080 777s. Direct market competitors to the 777 are the Airbus A330-300, A340, and some variants of the A350 XWB, which is currently under development.
You can see a guide on how to fly this plane for Flightgear 2.0 at Boeing 777 Tutorial: Version 2.0..