Boeing 777 is a twin engine, wide body, long haul jet aircraft. It is the biggest twin engine aircraft in the world. The aircraft has five variants: 777-200, 777-200ER (Extended Range) and 777-200 (Long Range or Worldliner) are 63.7 meters long and can carry from 301-440 passengers. 777-300 and 777-300ER are 73.9 meters long and can carry between 365-550 passengers.