Which Rolls-Royce aero engine powers the Boeing 787 Dreamliner?

The Rolls-Royce aero engine that powers the Boeing 787 Dreamliner is the Trent 1000.

The Trent 1000 is one of two engine options for the 787, alongside General Electric’s GEnx-1B. Boeing selected Rolls-Royce and GE as engine partners in 2004, giving airlines a choice rather than making the Dreamliner dependent on a single supplier. The Trent 1000 retains the Trent family’s distinctive three-shaft architecture and has a bypass ratio of more than 10:1.

The engine first ran on 14 February 2006 and made its first flight in June 2007. It received joint EASA and FAA certification on 7 August 2007, then entered commercial service on 26 October 2011 when All Nippon Airways operated the first 787 passenger flight from Tokyo to Hong Kong.

The wrong options belong to other applications or engine families: the RB211 is an earlier Rolls-Royce design, the Trent 700 powers Airbus A330 variants, and the Trent 900 was developed for the Airbus A380. The Trent 1000 also evolved into upgraded versions such as the Trent 1000 TEN.