Trent 800 is the market leading engine on the Boeing 777 with a 41 per cent share
- There are over 500 Trent 800 engines on 220 aircraft operating in service today
- Over 21 million hours and 4 million cycles of Trent 800 operation achieved by December 2012
- Lowest weight, greater payload, greater revenue-earning capability
- Thrust available from 75,000lb to 95,000lb from a single bill of material
- Competitive fuel burn
- Low noise
- Lowest emissions
- Modular build ensures ease of maintenance
- Reliable and predictable throughout its life
- The three shaft architecture allows convenient transportation
- A Trent 800 powered Boeing 777 takes off or lands every 96 seconds
The Trent 800 entered service in April 1996. Built on the solid foundation of Trent 700 (entered service in March 1995) experience, the Trent 800 was certified ahead of schedule at 90,000 lb thrust, exceeding its original target of 84,000lb.
The Trent 800 rapidly established a reputation for industry-leading reliability and the capability of the original design has been demonstrated by continuing thrust growth. Today the Trent 800 is available from 75,000 to 95,000lb thrust with a common engine standard, the widest range of any engine in its class.
The Trent 800 is the power plant of choice for the 777, having secured orders for 40 per cent of the available market.
The Trent 800 is a three-shaft high bypass ratio engine
As a member of the Trent family, the Trent 800 is built on sound fundamentals:
Derived from the reliable RB211 family, this architecture permits low-risk scaling from existing designs providing lower development costs, proven technology and in-service reliability leading to optimised engines for specific aircraft applications.
The hollow, titanium wide-chord fan blade, pioneered by Rolls-Royce and introduced into airline service in the 1980s, set new standards in aerodynamic efficiency and resistance to foreign object damage. Designed specifically for high-bypass turbofans, the width of these blades sets them apart from the narrow and less efficient earlier equivalents.
The three-shaft engine design makes the Trent engine shorter and simpler. The simplicity and inherent efficiency of its design also means that it is lighter. A Trent 800-powered Boeing 777 is around 7,500lb lighter than the same aircraft powered by the heavier of the competing engines. Low weight and high thrust equates to optimum revenue earning capability.
Best performance retention
The three-shaft configuration provides good performance retention resulting in more time on wing and fewer shop visits throughout its life. Deterioration characteristics have been minimised through: preliminary design (e.g. single case combustor for reduced leakage, advanced clearance control in the turbines, and optimised clearances in the compressor); and operation (advanced engine health monitoring, and engine core washing).
Trent 800 fuel efficiency was improved with the introduction of the Trent 800EP in September 2013, which includes a series of modification inspired by the later members of the Trent engine family, delivering savings of more than $20 per engine flying hour.
Best environmental credentials
The Trent 800 produces the lowest NOx and the lowest total legislated gaseous emissions during landing and take-off, with significant margins to both current and future regulations whilst using a simple, cost effective single-annular combustor. The Trent 800 also has significant margin to both Stage 3 and Stage 4 community noise legislation levels.
For more information on Rolls-Royce, our products and the environment, please see our report “Powering a better world”.
Due to its low weight, three-shaft architecture and proven reliability record, coupled with its low idle thrust reducing brake wear, and low oil consumption the Trent 800 continues to demonstrate superior operating life-cycle economics.
- The Trent 800 is a three-shaft high bypass ratio engine.
- Fan diameter: 110 inches (2.79 metres)
- Eight-stage IP compressor
- Six-stage HP compressor
- Single annular combustor with 24 fuel injectors
- Single-stage HP turbine
- Single-stage IP turbine
- Five-stage LP turbine