RB211 Family
RB211 High –Bypass Turbofan Engine
Engine Overview
The Rolls-Royce RB211 is a family of high-bypass turbofan engines made by Rolls-Royce and capable of generating 37,400 to 60,600 pounds-force thrust. Originally developed for the Lockheed L-1011 (TriStar), it entered service in 1972 and was the only engine to power this aircraft type. The RB211 became the first true three-spool engine. The RB211 was officially superseded in the 1990s by the Rolls-Royce Trent family of engines, the conceptual offspring of the RB211.
More about the RB211 Turbofan Engine
Rolls-Royce developed that the RB211 to provide greater thrust. By redesigning the fan and the IP compressor the engine's thrust reached 50,000 lbf (220 kN). The new version was designated RB211-524, and would be able to power new variants of the L-1011, as well as the Boeing 747.
The RB211 series engines are also power plant options for the Boeing 757s and 767s aircraft. There are several iterations of the RB211 over its long history.
Positive Feedback
- Trusted performance - The RB211 DLE (Dry Low Emissions) is one of the most experienced aeroderivative low emission gas generators available.
- Maximum Efficiency - A single row of variable position inlet guide vanes in the low pressure compressor module, combined with bleed valves and the two-spool design, allow for lower power starting and optimum performance over the engine speed range. Guide vane position is automatically adjusted to provide maximum efficiency.
- Fuel Flexibility and DLE Option
- Modular Construction Simplifies Maintenance
- Engineered to meet the demands of operating in diverse environments