The original engine contained a single stage fan driven by a 4-stage low pressure (LP) turbine, supercharging a 14-stage HP compressor driven by a 2-stage high pressure (HP) turbine, with an annular combustor. Later higher thrust versions of the CF34 feature an advanced technology core, with only 10 HP compressor stages. Latest variants, the -10A and -10E, were derived from the CFM56 engine family,[citation needed] and have a radically different HP spool, containing a 9-stage compressor driven by a single stage turbine. The LP spool has 3 core booster stages behind the fan. Static thrust is 82 kilonewtons (18,500 lbf) for the -10E variant.
On wing times can reach 14,000 hours, an overhaul costs over $1.5 million and a set of LLPs $2.1 million for a 25,000 cycle life.[4] In 1995, GE invested $200 million to develop the -8C derivative for the CRJ700.[5]
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general, electric, cf34, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, au. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources General Electric CF34 news newspapers books scholar JSTOR August 2009 Learn how and when to remove this template message The General Electric CF34 is a civilian high bypass turbofan developed by GE Aircraft Engines from its TF34 military engine The CF34 is used on a number of business and regional jets including the Bombardier CRJ series the Embraer E Jets and Comac ARJ21 2 3 In 2012 there were 5 600 engines in service CF34A CF34 installed on a Bombardier CRJ200Type TurbofanNational origin United StatesManufacturer General ElectricFirst run 1982 1 Major applications Bombardier Challenger 600 seriesBombardier Challenger 850Bombardier CRJComac ARJ21Embraer E JetsDeveloped from General Electric TF34CF34 engine mounted on an Embraer 190 Recent versions of the CF34 feature chevrons on the core nozzle outlet Contents 1 Design and development 2 Applications 3 Specifications 4 See also 5 References 6 External linksDesign and development EditThe original engine contained a single stage fan driven by a 4 stage low pressure LP turbine supercharging a 14 stage HP compressor driven by a 2 stage high pressure HP turbine with an annular combustor Later higher thrust versions of the CF34 feature an advanced technology core with only 10 HP compressor stages Latest variants the 10A and 10E were derived from the CFM56 engine family citation needed and have a radically different HP spool containing a 9 stage compressor driven by a single stage turbine The LP spool has 3 core booster stages behind the fan Static thrust is 82 kilonewtons 18 500 lbf for the 10E variant On wing times can reach 14 000 hours an overhaul costs over 1 5 million and a set of LLPs 2 1 million for a 25 000 cycle life 4 In 1995 GE invested 200 million to develop the 8C derivative for the CRJ700 5 GE has proposed updating the Boeing B 52 Stratofortress with CF34 10 engines 6 Applications EditCF34 1ABombardier Challenger 601 1ACF34 3ABombardier Challenger 601 3ACF34 3A1Bombardier Challenger 601 3R Bombardier CRJ100 ER LRCF34 3A2Bombardier Challenger 601 3A ERCF34 3BBombardier Challenger 604 Bombardier Challenger 605CF34 3B1Bombardier Challenger 850 Bombardier CRJ200 ER LR Bombardier CRJ440 ER LRCF34 8C1Bombardier CRJ700 Series 701 CF34 8C5Bombardier CRJ700 Series 705 Bombardier CRJ900 Bombardier CRJ900 NextGenCF34 8C5A1Bombardier CRJ1000 NextGenCF34 8C5A2Bombardier CRJ1000 NextGenCF34 8C5B1Bombardier CRJ700 NextGenCF34 8EEmbraer 170 Embraer 175CF34 10AComac ARJ21CF34 10EEmbraer 190 Embraer 195 Embraer Lineage 1000Specifications EditCF34 Engine Comparison 7 CF34 3 8 CF34 8C 9 CF34 8E 10 CF34 10A 11 CF34 10E 12 Application CL600 CRJ200 CRJ700 900 1000 E170 175 Comac ARJ21 E190 195Length 103 in 2 6 m 128 in 3 3 m 121 in 3 1 m 90 in 2 3 m 145 in 3 7 m Diameter 49 in 1 2 m 52 in 1 3 m 53 in 1 3 m 57 in 1 4 m 57 in 1 4 m Dry weight 1 670 lb760 kg 2 400 2 450 lb1 090 1 110 kg 2 600 lb1 200 kg 3 700 lb1 700 kg 3 700 lb1 700 kgFan 44 in 110 cm 46 2 in 117 cm 53 in 130 cm Compressor 14 HP stages 14 1 10 HP stages 3 LP 9 HP stagesTurbine 4 LP 2 HP stages 4 LP 1 HP stageThrust SL 9 220 lbf41 0 kN 13 790 14 500 lbf61 3 64 5 kN 14 500 lbf64 kN 17 640 lbf78 5 kN 20 360 lbf90 6 kNThrust weight 5 52 1 5 7 6 1 5 6 1 5 1 1 5 2 1OPR max power 21 1 28 28 5 1 28 5 1 29 1Bypass ratio 6 2 1 5 1 5 4 1SFC Cruise 0 69 lb lbf h20 g kN s 0 67 0 68 lb lbf h19 19 g kN s 0 68 lb lbf h19 g kN s 0 65 lb lbf h18 g kN s 0 64 lb lbf h18 g kN sSee also EditRelated development General Electric TF34Comparable engines PowerJet SaM146 Progress D 436 Pratt amp Whitney PW6000 IAE V2500 Rolls Royce AE 3007 Rolls Royce BR700 Rolls Royce RB 183 TayRelated lists List of aircraft enginesReferences Edit GE Aviation at flightglobal com The CF34 at aviationpros com GE s CF34 3 Engines Celebrate 20 Years of Regional Jet Service at aviationpros com E190 Values Start to Take Note of E2 Aircraft Value News October 29 2018 David Hughes Feb 13 1995 CF34 8C to power new regional jet Aviation Week Propulsion Hub amp Engine Product GE Aviation Archived from the original on June 26 2020 Retrieved June 25 2020 The CF34 Engine GE Aviation CF34 3 turbofan engine PDF GE Aviation CF34 8C turbofan engine PDF GE Aviation CF34 8E turbofan engine PDF GE Aviation CF34 10A turbofan engine PDF GE Aviation CF34 10E turbofan engine PDF GE Aviation External links Edit Wikimedia Commons has media related to General Electric CF34 General Electric CF34 page Retrieved from https en wikipedia org w index php title General Electric CF34 amp oldid 1097173893, wikipedia, wiki, book, books, library,
