GE Aviation Prepares for Testing of its New Turboprop Derivative Engine

(Czech Republic, July 27, 2009) -- GE Aviation is preparing for the start of certification testing later this year of its new H80 turboprop engine, which is derived from the Walter M601 series engines. Drawing upon the proven design of the Walter M601 engine series, the H80 engine will produce up to 800 shaft horsepower (shp) to power utility, agriculture and business and general aviation aircraft. "The H80 engine is a collaborative effort of engineers at GE Aviation's Evendale, Lynn and Czech Republic facilities," said Brad Mottier, vice president and general manager of the Business and General Aviation organization at GE Aviation. "The team took the elegant and robust design of the Walter M601 engine and incorporated GE's 3-D aerodynamic design techniques and advanced materials to create a more powerful, fuel-efficient, durable turboprop engine." GE's 3D aerodynamic design techniques and advanced materials have been integrated into the H80 engine's compressor, along with flow-path and material improvements to the turbine nozzle guide vanes. The H80's two-stage axial compressor also includes an innovative turbine blisk design. The H80 engine will deliver more shaft-horsepower, improved fuel efficiency and increased temperature margin, significantly enhancing hot-day takeoff performance and high-altitude cruise speeds. The H80 engine will also feature an extended service life of 3,600 flight-hours and 6,600 cycles between overhauls. GE continues component testing of the H80 engine. The engine has already accumulated more than 3,000 cycles during hot section demonstration tests in Prague. Additional engine demonstration tests are scheduled for this summer and fall. Engine certification testing is set to begin later this year with certification expected in early 2010.

Source: GE Aviation
Date: Jul 29, 2009