British Airways is to operate its new Boeing 777-300ER aircraft with a four-class interior, comprising 297 seats, when it puts the twin-jet into service later this year.
It has taken delivery of its first example (G-STBA), one of six, becoming the first UK carrier to introduce the type.
BA is taking three 777-300ERs this year and the other three by early 2012.
The airline's chief executive, Willie Walsh, says the aircraft's cabin has been completely modernised.
"It is the aircraft first to be fitted-out with our new 'World Traveller' and 'World Traveller Plus' cabins," he says. The twin-jet also features BA's 'First' and 'Club World' interiors.
Walsh adds that the upgraded in-flight entertainment system will provide customers with 50% more choice on movies and increased television and music programmes.
European companies using the 777-300ER include Air France-KLM and Turkish Airlines. The aircraft are exclusively powered by General Electric GE90 engines.