First GE Passport Engine Travels Down Assembly Line
GE Aviation has started assembling the first Passport development engine for the Bombardier Global 7000 and Global 8000, the company announced yesterday. Testing of the 16,500-pound-thrust turbofan is scheduled to begin in the second quarter.
According to GE, Passport will incorporate several new technologies and materials, including a lower-weight composite fan case and a 52-inch front fan blisk that will lower cabin noise and vibration. Additionally, it will borrow technologies from GE’s eCore suite to lower emissions and improve fuel efficiency. When combined, these improvements will result in up to 11-percent lower specific fuel consumption than other engines in its class and a margin to both CAEP/6 emissions and Stage 4 noise regulations.
The Passport’s integrated propulsion system from GE/Safran joint venture company Nexcelle will feature a slim-line nacelle with outward opening cowl to reduce weight and drag. In addition, it will allow easy maintenance access.
Since launching the engine in 2010, GE has conducted various validation tests on the fan blisk design, including two fan blade-out rig tests, ingestion tests and a rig test to demonstrate fan efficiency. This testing was completed on two eCore demonstrators, which accumulated 150 hours. GE said another eCore demonstrator will run later this year.