Rolls-Royce RB211

URI: https://gptkb.org/entity/Rolls-Royce_RB211

GPTKB entity

Predicate	Object
gptkbp:instanceOf	piston engine
gptkbp:bypassRatio	4.3:1 to 5:1
gptkbp:certification	1972
gptkbp:combustorType	annular
gptkbp:countryOfOrigin	gptkb:United_Kingdom
gptkbp:family	gptkb:Rolls-Royce_Trent
gptkbp:firstRun	1968
https://www.w3.org/2000/01/rdf-schema#label	Rolls-Royce RB211
gptkbp:introduced	1972
gptkbp:manufacturer	gptkb:Rolls-Royce
gptkbp:notableFor	first production three-spool turbofan led to nationalization of Rolls-Royce in 1971 saved Rolls-Royce from bankruptcy used carbon fiber fan blades in early design
gptkbp:notableVariant	gptkb:RB211-22 gptkb:RB211-553 gptkb:RB211-524 gptkb:RB211-535
gptkbp:numberBuilt	over 4,000
gptkbp:numberOfStages	1-stage HP, 1-stage IP, 3-stage LP 3-stage fan, 1-stage LP, 7-stage IP, 6-stage HP
gptkbp:predecessor	gptkb:Rolls-Royce_Conway
gptkbp:primaryUse	commercial airliners
gptkbp:status	in service
gptkbp:successor	gptkb:Rolls-Royce_Trent
gptkbp:thrust	37,400–60,600 lbf
gptkbp:usedIn	gptkb:Boeing_757 gptkb:Boeing_767 gptkb:aircraft gptkb:Lockheed_L-1011_TriStar gptkb:Hawker_Siddeley_Nimrod
gptkbp:bfsParent	gptkb:aircraft
gptkbp:bfsLayer	4