While focused on delivering geared turbofan (GTF) engines for the new Mitsubishi MRJ and Bombardier C Series, Pratt & Whitney is turning its attention to the wider applications of a technology that offers a 12- to 15-percent improvement in fuel burn by allowing the engine fan and low-pressure turbine to operate at optimum speeds.
The GE Honda joint venture last Thursday fired up the first conforming version of its new 2,095-lb-thrust HF120 engine currently slated for certification in 2011. Initial engine tests are typically completed in a sea-level test cell, with high-altitude performance testing conducted onboard an aircraft.
The first GE Honda HF120 engine has successfully started its initial test run at GE Aviation’s altitude test chamber in Evendale, Ohio, the company announced yesterday at the NBAA Convention. “This is a significant milestone and represents the transition from the design-definition phase to the test and certification phase of the HF120,” said GE Honda Aero Engines president Bill Dwyer.
Going against the common practice of replacing rather than repairing, MTU Aero Engines has teamed with General Electric to make repairs more cost effective for the operator. “It is common for maintenance facilities to use new parts to replace worn or damaged ones, but we prefer to repair. Our technicians can restore even heavily worn components to as-good-as-new condition,” said Dr.
Chromalloy (Hall 3 Stand A33) has announced that the U.S. Air Force has selected it to provide module repairs during maintenance on the F108 gas turbine engine that powers the KC135R tanker aircraft. The follow-on award, valued at $15.8 million plus options, brings the total value of the contract to approximately $38 million over three years.
German-based engine manufacturer MTU Aero Engines is here at the Paris Air Show (Hall 2 Stand AB 151) exhibiting a cutaway mockup of a geared turbofan. This is the basic concept for its Claire (clean air engine) technology program, whose aim is to cut carbon dioxide (CO2) emissions by 30 percent by 2035. It is making its first step under the umbrella of the European Commission’s Clean Sky joint technology initiative.
Rolls-Royce’s development of an open-rotor engine for the next generation of midsize airliners has taken a giant leap forward after wind-tunnel tests revealed its design would comfortably meet current Stage 4 noise regulations.
With oil prices and financial markets so unstable, one could easily assume that global warming and alternative fuels are far from the minds of most aircraft operators. However, achieving sustainable growth in the aviation industry was the focus of a recent “Greener by Design” lecture hosted by London’s Royal Aeronautical Society (RAeS).
The second half of this year will mark “significant certification testing milestones” for the GE Honda Aero Engines HF120, the turbofan that will power both the HondaJet and Spectrum S.40 Freedom, the engine partners said yesterday at EBACE.
Researchers across Europe have made substantial progress in their pursuit of the cleaner, more fuel efficient engines that will be needed if air traffic is to continue growing without its environmental impact becoming unacceptable.