The Boeing 777-300ER is the stretched, extended-range variant of the 777 and one of the most important widebody aircraft in commercial aviation. Launched in 2000 and entering service with Air France in 2004, the 777-300ER combined unprecedented range with capacity that had previously required four-engine aircraft. Its engines, the GE90-115B, are the most powerful commercial jet engines ever built, each producing more than 115,000 pounds of thrust. The aircraft operates the longest and busiest long-haul routes in the world, from New York to Dubai, Los Angeles to Sydney, London to Singapore, and hundreds more. Airlines including Emirates, Qatar Airways, Cathay Pacific, Singapore Airlines, American, and United operate large 777-300ER fleets. Production continues alongside the upcoming 777X family, which will eventually replace the type.