The RB211-524 fleet comprises over 500 engines on 100 aircraft in service
The fleet logged nearly 42 million flying hours, and almost 12.5 million flight cycles
First engine ever to achieve more than 27,500 hours on-wing
Interchangeable between Boeing 747-400 and Boeing 767-300 (RB211-524H/-T)
Flexible rating selection
Lowest life cycle cost of ownership
Continuous improvement with Trent® technology
RB211-524G/H upgraded with the Trent HP system gives:
Lowest mature fuel burn
Best performance retention
Lowest maintenance costs
Compliance with all current and planned emissions legislation
Every 34 seconds an RB211-524 powered 747 takes off or lands
The RB211-524B4 currently operates on the Lockheed L1011 Tristar.
The three-shaft architecture, first introduced on the RB211-22B, allows an engine to have fewer stages giving a shorter, stiffer structure. This technology allows the rotors to run to their optimum speeds thereby reducing the need for compressor variable guide vanes.
The innovative wide-chord fan blades, allow a reduction in the number of fan blades, increasing efficiency, reducing noise and giving unrivalled protection against foreign object damage.
Through the Rolls-Royce concept of family designs, the RB211-524G/H was upgraded with 04 module HP (high pressure) technology developed on the Trent 700 engine family in 1997.
In the RB211-524G/H-T the HP turbine system is designed to operate at Trent 700 temperatures that are significantly higher than the RB211-524. As a result of this, the engine is able to better retain its performance characteristics throughout its service life.
The benefits of the -T on the Boeing 747-400 are:
2 per cent lower fuel burn.
longer lives on wing - through lower operating temperatures, increased margin and higher capability hardware in the core.
lower weight – over 200 lb per engine.
lower emissions – 40% lower NOx.
lowest maintenance cost - through longer lives and better capability hardware.
best performance retention.
The Trent style combustor reduces NOx emissions by 40 per cent, making the RB211-524G/H-T the engine with the lowest NOx emissions on the Boeing 747-400.
The RB211-524G/H-T was certified in 1997 with significant margin to all environmental emissions regulations and Chapter 3 noise limits on both the Boeing 747 and Boeing 767 aircraft.
The RB211-524G/H offers full commonality and engine changeability for a Boeing 747 and Boeing 767 mixed fleet. This results in lower spares holdings and the lowest possible cost of ownership. The RB211-524G/H-T was cleared for use on the Boeing 767 early in 2001.