Friday, October 8, 2010

Rolls Royce RB211

The Rolls-Royce RB211 was a turbofan engine developed by the British firm Rolls-Royce to power the Lockheed L-1011. It first ran on this aircraft in 1970. The RB211 could generate 40,600 lb (270 kilonewtons) thrust. The costs of development forced Rolls-Royce into bankruptcy, but it was nationalized by the British government. The RB211 was also used for land-based power generation; the first engine manufactured for this purpose was the RB211-22.

Specifications for the Roll-Royce RB211-22

Triple-spool high-bypass-ratio 5.0
Single-stage wide-chord fan
Seven-stage IP compressor
Six-stage HP compressor
Single annular combustor with 18 fuel burners
Single-stage HP turbine
Single-stage IP turbine
Three-stage LP turbine

Rolls Royce RB211 turbine (video)