- 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.
