RB211-524

More than 900 engines in service

Product details

More than 900 engines in service.
The RB211-524 fleet has logged nearly 65 million flying hours, and almost 12.5 million flight cycles.
First engine ever to achieve more than 27,500 hours on-wing
Selected by some of the world's leading airlines.
Interchangeable between Boeing 747-400 and Boeing 767-300 (RB211-524H /-T).
Flexibility of 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.

As a member of the RB211 family, the RB211-524 is built on sound fundamentals:

Three-shaft architecture

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.

Wide-chord fan

The innovative wide-chord fan blades, allows a reduction in the number of fan blades, increasing efficiency, reducing noise and gives unrivalled protection against foreign object damage.

Incorporating Trent technology

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% 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.

Best environmental credentials

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.

Superior economics

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.

The RB211-524 family (including the RB211-22B) are three-shaft high-bypass-ratio engines.
Single-stage wide-chord fan.
Seven-stage IP compressor.
Six-stage HP compressor.
Single annular combustor with 18 fuel burners (24 on the RB211-524G/H-T).
Single-stage HP turbine, single-stage IP turbine and a three-stage LP turbine.