Rolls-Royce Holdings
In 2006, Airbus confirmed development of a full [[bleed air]] system on the A350, as opposed to the 787's bleedless configuration. [[Rolls-Royce Holdings|Rolls-Royce]] agreed with Airbus to supply a new variant of the [[Rolls-Royce Trent|Trent]] [[turbofan]] engine for the A350 XWB, named "[[Rolls-Royce Trent XWB|Trent XWB]]". In 2010, after low-speed wind tunnel tests, Airbus finalised the static thrust at sea level for all three proposed variants to the range.