Rolls-Royce achieves certification for enhanced Trent XWB-84 engine

This paves the way for its entry into service in 2025.

The development builds on nearly a decade of operational success for the Trent XWB-84, which has established itself as one of the most efficient and reliable engines in aviation.

The Trent XWB family is widely used across the global airline industry, including by nine of the world’s ten most profitable carriers, including Emirates which officially unveiled the very first Airbus A350-900 powered by the Trent XWB-84 last month.

The new EP standard introduces technical improvements aimed at delivering a 1% improvement in specific fuel consumption, reducing CO₂ emissions and contributing to lower operating costs.

The engine is also compatible with up to 50% Sustainable Aviation Fuel (SAF) and has undergone testing for 100% SAF, supporting industry-wide goals for reducing emissions.

Further updates to component design will also enhance reliability and extend the engine's lifecycle, reducing maintenance requirements and improving availability.

Testing and Certification

The certification process involved extensive ground and in-flight testing to validate the engine's performance and durability under a range of operating conditions. Thousands of testing hours were conducted, including trials in extreme temperatures and high-cycle operations, to ensure the engine meets industry standards and customer requirements.

Pete Young, chief engineer for the Trent XWB-84 EP, said: “The certification of the Trent XWB-84 EP is the result of a rigorous design and testing programme. It reflects the continuous improvement of the Trent XWB family, ensuring it remains a competitive option for airlines navigating evolving industry challenges. We now look forward to its introduction into service in 2025.”