Airline sources said Airbus is exploring more seriously than before a larger version of its A350-1000 widebody jet with a capacity of up to 450 seats to counter the latest Boeing 777, probably powered by the next generation of "UltraFan" engines from Rolls-Royce.
A geared design with a variable pitch system, “UltraFan” is based on technology that could be ready for service from end-2025 and will offer at least 25% improvement in fuel burn and emissions against the same baseline.
UltraFan will utilise the new advanced core architecture, enhanced with further technologies and the broader application of innovative high-temperature materials to push the core overall pressure ratio to more than 70:1.
The UltraFan is Rolls-Royce's vision for the very long term.
Based on the article “Airbus set to announce new hike in A320 production” published in Reuters.