Description

The RB211 family of turbofans shares a three-shaft layout, a design that results in a shorter and more rigid engine which offers the best performance retention.

Rolls-Royce product development has improved the engine’s efficiency and fuel consumption significantly since it entered service. The improved RB211-524G/H-T has the lowest mature fuel burn on the Boeing 747-400, through the installation of the Trent high-pressure system. The Trent combustor reduces NOx emissions by 40 per cent, making the -524G/H-T the lowest NOx engine on the Boeing 747-400. The RB211-524 is the only engine on the Boeing 747-400 and 767-300 with the wide-chord fan, a Rolls-Royce innovation which increases efficiency, reduces noise and gives unrivalled protection against foreign object damage.

The 524G/H offers full commonality and engine changeability for a 747/767 mixed fleet. This results in lower spares holdings and the lowest possible cost of ownership. The -524G/H-T was cleared for use on the 767 early in 2001.