TechX

Passport
Type	Turbofan
National origin	United States
Manufacturer	GE Aviation
First run	June 24, 2013
Major applications	Bombardier Global 7000/8000
Developed from	CFM International LEAP

The General Electric Passport (formerly called TechX) is a high bypass turbofan engine currently under development by GE Aviation, in cooperation with Safran. It is being developed in parallel with the larger CFM International LEAP, and includes many similar technologies, like blisks and NOx reducing combustors.

It is designed to produce 10,000 to 20,000 pounds-force (44 to 89 kN) of thrust for large business jets and regional jets, in place of the General Electric CF34. It is selected to power the Bombardier Global 7000/8000.

The testing of the engineering cores began in 2010, with a second core set to be ready in 2011. GE is developing the core from the LEAP-X eCore technology, using 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. On May 16, 2011, the TechX was renamed the Passport.

On December 30, 2014, GE mounted the first 16,500 lb thrust Passport engine on its Boeing 747-100 flying engine test bed. GE also completed hail and bird ingestion tests for the engine. The Passport will feature a slimline nacelle with clam-shell cowl opening to reduce weight and drag.

GE Aviation will perform the Passport 20 final assembly at its Strother Field plant in Arkansas City, Kansas. The engine FAA certification was announced on May 23, 2016.

By May 2017, the engines had completed 3,100h in ground and flight test, and 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.

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