The express carrier described the latest addition to its fleet, which will operate on the Stansted-Memphis route, as “part of the evolution of FedEx Express sustainability effort”, helping reduce its global footprint.

The aircraft carries 6.8 tonnes more than the MD-11, which was previously deployed on the route, and its emissions and fuel-burn are both 18 percent lower relative to the extra capacity.

FedEx has so far taken delivery of 12 B777s, including two based at its European hub at Paris CDG that now link the airport with Memphis and Hong Kong. Another 33 of the aircraft remain on order.

David Binks, senior vice president of operations for FedEx Express Europe, said: “The environmental efficiencies of this new aircraft, coupled with its attractive payload range and economics, makes the B777F the best choice for FedEx Express and its customers.”

Nick Barton, managing director of London Stansted Airport, said: “Having obtained Code F status for the next generation aircraft to operate on our runway, and as the only major London airport with capacity for growth, we’re delighted FedEx selected Stansted as a base for one of its new B777Fs.

“We’re committed to improving our environmental and operational performance. With lower noise and emissions levels than the MD-11, this investment will be welcome news to the communities around the airport.”