Williams International of Walled Lake, Mich., expects to receive FAA certification soon for two of its new turbofan engines. U.S. approval is anticipated this quarter for the FJ33, a 1,200-pound-thrust engine that has been selected to power several very light jets still under development, including the Adam A700, Safire Jet, Diamond D-Jet and Aerostar FJ-100.
At General Electric, the official corporate slogan is “Imagination at work.” At Honda, it’s “The power of dreams.” The two companies announced last month they have merged them in an alliance to develop, certify, market and support Honda’s 1,670-pound-thrust HF118 turbofan. The result could be one of the most innovative global alliances in business-aviation history.
Honeywell’s small heavy fuel engine (SHFE), in development since 2003, “will change the game for turboshaft engines in the future,” predicted Ron Rich, the company’s director of advanced aerospace technology.
Few sounds are louder than a jet aircraft at takeoff.
The decibel level of a climbing jet engine at full power can be higher (140 dB) than that of a chain saw (110 dB) or ambulance siren (120 dB), according to the National Institute for Occupational Safety and Health.
But relief may be a toggle away, if recent university research finds its way into aircraft cockpits.
The FAA issued an emergency AD last month to all owners and operators of GE CF34-3A1, -3B and -3B1 turbofans after investigators found an electrical arc-out defect in the fan disk of the engine that broke apart during a Mesa Airlines revenue flight on January 25.
The FAA issued an emergency AD on Friday to all owners and operators of GE CF34-3A1, -3B and -3B1 turbofans after NTSB investigators found an electrical arc-out defect in the fan disk of the engine that broke apart on a Mesa Airlines Bombardier CRJ200 during a revenue flight on January 25.
The NTSB recovered roughly half of the fan disk, fan blades, parts of the engine cowling and thrust reverser, the engine spinner and pieces of the fan containment case from the GE CF34-3B1 turbofan that broke apart during a January 25 revenue flight of a Mesa Airlines Bombardier CRJ200 from Denver to Phoenix.
Barry Eccleston wants to take Honeywell back into the commercial helicopter business in a big way, while at the same time finding another airframe on which to hang the company’s newly renamed HTF7000 turbofan, which now powers only the Bombardier Challenger 300.
Starting with the new Challenger 300 powerplant, Honeywell will designate all future turbine engines with letters to identify the type of propulsion, such as HTF for a Honeywell turbofan, HTP for a turboprop and HTS for a turboshaft. Previously, the powerplant in the Challenger 300 was designated the AS907 (where AS stood for AlliedSignal–the company that bought Honeywell in late 1999 and adopted the Honeywell name).
One of the technologies that Honeywell says promises to revolutionize aircraft design is something known as “more electric architecture” (MEA). This “breakthrough” technology will replace much of today’s heavy and maintenance-intensive pneumatic and hydraulic fluid and power systems, enabling OEMs to design aircraft with lighter, simpler and more reliable “electric” systems instead of miles of tubing, pumps and valves.