Why the Airbus A380's 4-engine layout costs airlines millions more per year than twin-engine rivals

Once a symbol of the peak of aviation, today the A380 is seen more as a liability than an icon. The main reason for this is ...
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5 of the most frustrating engine layouts ever designed

Cars used to be really simple. They would have an engine up-front, perfectly visible and surrounded by heaps of open space under the hood, a few seats in the middle, and a trunk at the back. As the ...