The General Electric Passport is a turbofan developed by GE Aviation for large business jets. It was selected in 2010 to power the Bombardier Global 7500/8000, first run on June 24, 2013, and first flown in 2015. It was certified in April 2016 and powered the Global 7500 first flight on November 4, 2016, before its 2018 introduction. It produces 14,000 to 20,000 lbf (62 to 89 kN) of thrust, a range previously covered by the General Electric CF34. A smaller scaled CFM LEAP, it is a twin-spool axial engine with a 5.6:1 bypass ratio and a 45:1 overall pressure ratio and is noted for its large one-piece 52 in (130 cm) fan 18-blade titanium blisk.
GE's eCore research program developing a common architecture for business, narrowbody and regional jets resulted in the CFM LEAP succeeding the CFM56 aboard the Boeing 737 MAX and Airbus A320neo. After a market study, GE pursued the long-range, large business jet and selected a 14,000–20,000 lbf (62–89 kN) thrust to exploit technology acquired for its commercial and military engine programs. Preliminary design work commenced in 2009. In 2010, Bombardier Aerospace selected the engine rated at 16,500 lbf (73 kN) for the Global 7000 announced at the same year NBAA convention.[2] The testing of the engineering cores began in 2010, with a second core set to be ready in 2011.[3] On May 16, 2011, the TechX was renamed the Passport.[4]
In 2011 began rig testing of components including combustor and high-pressure turbines. In 2012, to ensure containment by its shroud, a blade was blown off the fan. By 2013, multiple complete engines builds commenced testing on GE's Peebles, Ohio, outdoor stands. Bird ingestion and endurance were tested through 2014. In 2015, the Passport first flew aboard GE's Boeing 747-100 flying testbed out of Victorville, California, as ice, water ingestion and altitude up to FL510 were tested in a U.S. facility in Tennessee.[2]
In April 2016, it was FAA Certified after 3,380 hours and 3,385 cycles of testing.[2] The Global 7000 made its maiden flight with it on November 4, 2016.[5] It flew 100 hours on the Boeing 747 before logging more than 900 hours aboard the Global 7000 prototypes. By May 2017, the engines had completed 3,100h in ground and flight test.[6]
On 15 August 2017, the Global 7000 second prototype's right engine suffered an in-flight flameout at FL410, after “high vibration and high inter-turbine temperature readings”; subsequently, the airplane returned to Wichita Airport (290 km away) for a single engine landing.[7] It was traced to a mis-assembled part and a fleet-wide inspection revealed it was a one-off error.[8]
In autumn 2017, GE was building the flight test engines for Bombardier while preparing for early manufacturing. By service entry in 2018, 4,000 hours and 8,000 cycles of testing should be completed.[2]
In 2021, General Electric tendered Passport to the USAF to be assessed in a contest between Rolls-Royce and Pratt & Whitney to reengine the B-52H Stratofortress.[9] The contract was awarded to Rolls-Royce.[10]
The engine is a twin-spool, axial-flow turbofan with a high bypass ratio of 5.6:1 and an overall pressure ratio of 45:1. The front fan is attached to the three-stage low-pressure compressor; the 23:1 pressure ratio 10-stage high-pressure compressor includes five blisk stages for weight reduction. The low-emission combustor has a case with integrated OGV diffuser for weight reduction. There is a two-stage high-pressure and four-stage low-pressure turbine. The engine and aircraft accessory drive extracts energy from the high-pressure, high-speed rotor. It is equipped with a dual-channel Full Authority Digital Engine Control (FADEC) control system, providing fault isolation and engine functionality and diagnostics capability.[11]
A smaller scaled CFM LEAP, its HP compressor has five titanium blisks then five stages with insertable nickel alloy blades for higher temperatures. Its bleed air cooled turbine blades are made of advanced alloys from the eCore program. Blade tip active clearance control is modulated with cooling air from an enclosing manifold to the case, controlling its expansion and contraction depending on the flight envelope.[2]
The 52 in (130 cm) fan blisk, the first application of such technology on an engine this size, eliminates the need to balance a hub and blade system.[12] Blisk fans are usually found in small GE Honda HF120 or Williams International turbofans but the Passport titanium blisk is larger than the GE90 first stage compressor blisk. The 18 highly twisted wide chord forged titanium blades are friction welded by translations to the hub. The one piece fan reduces the vibration for cabin comfort, lowers wear and maintenance due to fewer parts, is lighter by a third and improves performance with less leaks and a smaller hub. Fuselage-mounted business jet engines are high off the ground and shielded by the wing from most foreign object damage. Its blades are more damage-resistant by being thicker at the leading edges due to their great efficiency. The fan can be changed on-wing as a LRU to be evaluated for repair in the shop.[2]
Its core cowling, exhaust cone and mixer are made in ox-ox composites, with inorganic high-temperature-tolerant resins and oxide ceramics CMCs to withstand 1,000 °C without deformation, saving weight and allowing complex molding. The carbon fiber composite fan cowl can contain a separated fan blade. GE provides the whole nacelle including the thrust reverser.[2] Developed with Safran, the slimline nacelle with clam-shell cowl openings reduce weight and drag.[13]
^ abJohn Croft (19 May 2010). "GE TechX engine set to lead new generation of GE turbofans". Flightglobal.
^"GE rebrands TechX as Passport". Flight International. May 16, 2011.
^"Bombardier Global 7000 Aircraft Successfully Completes First Flight" (Press release). Bombardier. November 4, 2016.
^Murdo Morrison (19 May 2017). "Rivals for power in the business aviation engine market". Flight Global.
^Kate Sarsfield (18 Aug 2017). "Global 7000 test aircraft suffers in-flight engine flameout". Flight Global.
^Stephen Trimble (10 Oct 2017). "GE nears milestones on $1.5B bet on business aircraft". Flightglobal.
^Insinna, Valerie (2021-02-25). "'Too early to say' when B-52 engine contract will be awarded". Defense News. Retrieved 2021-05-05.
^Courtney Albon (September 24, 2021). "Air Force chooses Rolls-Royce F130 for B-52 Commercial Engine Replacement Program". Inside Defense.
^ ab"type certificate data sheet E00091EN, revision 0" (PDF). FAA. 29 April 2016.
^John Croft (21 October 2010). "NBAA: GE TechX fan blisk is all the buzz". Flightglobal.
^Guy Norris (January 9, 2015). "GE Passport Engine Takes Flight, Set For Fan-Blade-Out Test". Aviation Week.(subscription required)
^"GE Aviation plant expects delay on new jet engine work". Wichita Eagle. 8 October 2015.
^"The Record-Setting Passport Engine Departs from New Destination".
External links
"The GE Passport engine". General Electric.
(PDF). Business & Commercial Aviation. February 2009. Archived from the original on September 25, 2010.{{cite web}}: CS1 maint: unfit URL (link)
March 14, 2023
general, electric, passport, turbofan, developed, aviation, large, business, jets, selected, 2010, power, bombardier, global, 7500, 8000, first, june, 2013, first, flown, 2015, certified, april, 2016, powered, global, 7500, first, flight, november, 2016, befor. The General Electric Passport is a turbofan developed by GE Aviation for large business jets It was selected in 2010 to power the Bombardier Global 7500 8000 first run on June 24 2013 and first flown in 2015 It was certified in April 2016 and powered the Global 7500 first flight on November 4 2016 before its 2018 introduction It produces 14 000 to 20 000 lbf 62 to 89 kN of thrust a range previously covered by the General Electric CF34 A smaller scaled CFM LEAP it is a twin spool axial engine with a 5 6 1 bypass ratio and a 45 1 overall pressure ratio and is noted for its large one piece 52 in 130 cm fan 18 blade titanium blisk Passportengineering model at EBACE 2019Type TurbofanNational origin United StatesManufacturer GE AviationFirst run June 24 2013 1 Major applications Bombardier Global 7500 8000Developed from CFM International LEAP Contents 1 Development 2 Design 3 Applications 4 Specifications Passport 20 4 1 General characteristics 4 2 Components 4 3 Performance 5 See also 6 References 7 External linksDevelopment EditGE s eCore research program developing a common architecture for business narrowbody and regional jets resulted in the CFM LEAP succeeding the CFM56 aboard the Boeing 737 MAX and Airbus A320neo After a market study GE pursued the long range large business jet and selected a 14 000 20 000 lbf 62 89 kN thrust to exploit technology acquired for its commercial and military engine programs Preliminary design work commenced in 2009 In 2010 Bombardier Aerospace selected the engine rated at 16 500 lbf 73 kN for the Global 7000 announced at the same year NBAA convention 2 The testing of the engineering cores began in 2010 with a second core set to be ready in 2011 3 On May 16 2011 the TechX was renamed the Passport 4 In 2011 began rig testing of components including combustor and high pressure turbines In 2012 to ensure containment by its shroud a blade was blown off the fan By 2013 multiple complete engines builds commenced testing on GE s Peebles Ohio outdoor stands Bird ingestion and endurance were tested through 2014 In 2015 the Passport first flew aboard GE s Boeing 747 100 flying testbed out of Victorville California as ice water ingestion and altitude up to FL510 were tested in a U S facility in Tennessee 2 In April 2016 it was FAA Certified after 3 380 hours and 3 385 cycles of testing 2 The Global 7000 made its maiden flight with it on November 4 2016 5 It flew 100 hours on the Boeing 747 before logging more than 900 hours aboard the Global 7000 prototypes By May 2017 the engines had completed 3 100h in ground and flight test 6 On 15 August 2017 the Global 7000 second prototype s right engine suffered an in flight flameout at FL410 after high vibration and high inter turbine temperature readings subsequently the airplane returned to Wichita Airport 290 km away for a single engine landing 7 It was traced to a mis assembled part and a fleet wide inspection revealed it was a one off error 8 In autumn 2017 GE was building the flight test engines for Bombardier while preparing for early manufacturing By service entry in 2018 4 000 hours and 8 000 cycles of testing should be completed 2 In 2021 General Electric tendered Passport to the USAF to be assessed in a contest between Rolls Royce and Pratt amp Whitney to reengine the B 52H Stratofortress 9 The contract was awarded to Rolls Royce 10 Design Edit The GE Passport is a high bypass ratio turbofan The engine is a twin spool axial flow turbofan with a high bypass ratio of 5 6 1 and an overall pressure ratio of 45 1 The front fan is attached to the three stage low pressure compressor the 23 1 pressure ratio 10 stage high pressure compressor includes five blisk stages for weight reduction The low emission combustor has a case with integrated OGV diffuser for weight reduction There is a two stage high pressure and four stage low pressure turbine The engine and aircraft accessory drive extracts energy from the high pressure high speed rotor It is equipped with a dual channel Full Authority Digital Engine Control FADEC control system providing fault isolation and engine functionality and diagnostics capability 11 A smaller scaled CFM LEAP its HP compressor has five titanium blisks then five stages with insertable nickel alloy blades for higher temperatures Its bleed air cooled turbine blades are made of advanced alloys from the eCore program Blade tip active clearance control is modulated with cooling air from an enclosing manifold to the case controlling its expansion and contraction depending on the flight envelope 2 The 52 in 130 cm fan blisk the first application of such technology on an engine this size eliminates the need to balance a hub and blade system 12 Blisk fans are usually found in small GE Honda HF120 or Williams International turbofans but the Passport titanium blisk is larger than the GE90 first stage compressor blisk The 18 highly twisted wide chord forged titanium blades are friction welded by translations to the hub The one piece fan reduces the vibration for cabin comfort lowers wear and maintenance due to fewer parts is lighter by a third and improves performance with less leaks and a smaller hub Fuselage mounted business jet engines are high off the ground and shielded by the wing from most foreign object damage Its blades are more damage resistant by being thicker at the leading edges due to their great efficiency The fan can be changed on wing as a LRU to be evaluated for repair in the shop 2 Its core cowling exhaust cone and mixer are made in ox ox composites with inorganic high temperature tolerant resins and oxide ceramics CMCs to withstand 1 000 C without deformation saving weight and allowing complex molding The carbon fiber composite fan cowl can contain a separated fan blade GE provides the whole nacelle including the thrust reverser 2 Developed with Safran the slimline nacelle with clam shell cowl openings reduce weight and drag 13 Its TSFC is 8 lower than the competing BR725 of the Gulfstream 650 and over 10 better than the BR710 2 GE s Strother Field plant in Arkansas City Kansas was the initial final assembly location 14 GE s plant in Lafayette Indiana is the current assembly site for the engine as of 2020 15 Applications EditBombardier Global 7500 8000Specifications Passport 20 EditData from type certificate data sheet 11 General characteristics Type High bypass turbofan Length 132 5 in 337 cm Diameter 52 in 130 cm 3 Dry weight 4 554 lb 2 066 kg Components Compressor Axial 1 stage fan 3 stage LP compressor 23 1 pressure ratio 10 stage HP compressor Combustors Low emission TAPS combustor Turbine Axial 2 stage high pressure turbine 4 stage low pressure turbine Fuel type Aviation Low Freeze High Flash Low Flash KerosenePerformance Maximum thrust 17 745 18 920 lbf 78 93 84 16 kN Overall pressure ratio 45 1 Bypass ratio 5 6 Turbine inlet temperature Indicated Turbine exhaust gas temperature Takeoff 5 minutes at 1 895 F 1 035 C Thrust to weight ratio 3 9 4 2See also EditGeneral Electric CF34Related development CFM International LEAPComparable engines Pratt amp Whitney Canada PW800 Snecma Silvercrest Rolls Royce BR700 BR725 PearlRelated lists List of aircraft enginesReferences Edit GE s Passport Engine Begins First Full Engine Test Press release General Electric June 25 2013 a b c d e f g h David Esler Jan 31 2018 Special Report GE s Passport Engine Business amp Commercial Aviation a b John Croft 19 May 2010 GE TechX engine set to lead new generation of GE turbofans Flightglobal GE rebrands TechX as Passport Flight International May 16 2011 Bombardier Global 7000 Aircraft Successfully Completes First Flight Press release Bombardier November 4 2016 Murdo Morrison 19 May 2017 Rivals for power in the business aviation engine market Flight Global Kate Sarsfield 18 Aug 2017 Global 7000 test aircraft suffers in flight engine flameout Flight Global Stephen Trimble 10 Oct 2017 GE nears milestones on 1 5B bet on business aircraft Flightglobal Insinna Valerie 2021 02 25 Too early to say when B 52 engine contract will be awarded Defense News Retrieved 2021 05 05 Courtney Albon September 24 2021 Air Force chooses Rolls Royce F130 for B 52 Commercial Engine Replacement Program Inside Defense a b type certificate data sheet E00091EN revision 0 PDF FAA 29 April 2016 John Croft 21 October 2010 NBAA GE TechX fan blisk is all the buzz Flightglobal Guy Norris January 9 2015 GE Passport Engine Takes Flight Set For Fan Blade Out Test Aviation Week subscription required GE Aviation plant expects delay on new jet engine work Wichita Eagle 8 October 2015 The Record Setting Passport Engine Departs from New Destination External links Edit The GE Passport engine General Electric Betting big on business aviation PDF Business amp Commercial Aviation February 2009 Archived from the original on September 25 2010 a href Template Cite web html title Template Cite web cite web a CS1 maint unfit URL link Retrieved from https en wikipedia org w index php title General Electric Passport amp oldid 1137277652, wikipedia, wiki, book, books, library,
