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Honda Explains Reason for Jet Program Delay

** HondaJet**
Gemini Sparkle

Key Takeaways:

  • The HondaJet program has been delayed due to an unanticipated gearbox failure in the Honda/GE HF120 turbofan engine during an endurance test.
  • The issue was quickly diagnosed and fixed, but the company chose to rebuild the engine and restart the endurance test, causing the setback.
  • Engine certification is now expected by year-end, with HondaJet aircraft certification pushed to the end of next year, while a fifth conforming airplane has begun function and reliability testing.
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In explaining the delay announced last week of the HondaJet program, HondaJet president Michimasi Fujino told members of the press at EBACE that it was prompted by an unanticipated test program glitch with the Honda/GE HF120 turbofan engine that will power the airplane.

At a later press conference, GE Honda president Terry Sharp went into detail on the issue, saying that during an endurance test of the engine, a part of the gearbox failed when the test was around 25 percent complete. After diagnosing the problem and fixing it — Sharp said it was a quick and easy solution — the company chose to rebuild the engine and begin the test again, causing the delay.

Isabel Goyer

A commercial pilot, Isabel Goyer has been flying for more than 40 years, with hundreds of different aircraft in her logbook and thousands of hours. An award-winning aviation writer, photographer and editor, Ms. Goyer led teams at Sport Pilot, Air Progress and Flying before coming to Plane & Pilot in 2015.

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