General Electric Passport

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Passport
Type Turbofan
National origin United States
Manufacturer GE Aviation
Major applications Bombardier Global 7000
Bombardier Global 8000
Developed from CFM International LEAP-X

The General Electric Passport (formerly called TechX) is a high bypass turbofan engine currently under development by GE Aviation. It is designed to produce power in the 10,000 to 20,000 pounds-force (44 to 89 kN) thrust category, such as the Bombardier Global 7000 and 8000. It is being developed in parallel with the larger CFM International LEAP-X, and includes many similar technologies, like blisks and NOx reducing combustors.[1] GE sees potential in using the engine both on large cabin business jets and regional aircraft, where it will replace the CF34 in GE's product line.

Development[edit]

GE is developing the core from the LEAP-X eCore technology, using a lean combustor and a 52 inches (130 cm) metal fan blisk, the first application of such technology on an engine this size. In addition to eliminating the need to balance a hub and blade system, the blisk eliminates air leaks around the fan blades, thus improving its aerodynamic efficiency.[2] The testing of the engineering cores began in 2010, with a second core set to be ready in 2011.[1]

On May 16, 2011, the TechX was renamed the Passport.[3]

Specifications (TechX)[edit]

Data from [1]

General characteristics

  • Type: High bypass Turbofan
  • Length: in (cm)
  • Diameter: 52 inches (130 cm)
  • Dry weight: 3,700 pounds (1,700 kg)

Components

  • Compressor: Axial, 1 stage fan, 3 stage low pressure compressor, 10 stage high pressure compressor
  • Combustors: Annular
  • Turbine: Axial, 2 stage high pressure turbine, 4 stage low pressure turbine
  • Fuel type: Jet-A

Performance

See also[edit]

Related development
Comparable engines
Related lists

References[edit]

  1. ^ a b c "GE TechX engine set to lead new generation of GE turbofans" By John Croft, Flightglobal. 19 May 2010
  2. ^ "NBAA: GE TechX fan blisk is all the buzz" By John Croft, Flightglobal. 21 October 2010
  3. ^ GE rebrands TechX as Passport

External links[edit]