
When the first of Qantas’s ultra-long-range A350s lifted off from Toulouse this month, it revived a question the industry settled long ago but rarely explains: how is an aircraft with only two engines permitted to fly for hours over open ocean, hundreds of miles from the nearest runway? Aviation Explained looks at the rule that made it possible — and at why almost every new airliner now has just two engines.
Continue reading Aviation Explained: How a Twin-Engine Jet Crosses an Ocean



