Pipistrel Flies Liquid Hydrogen Demonstrator

Gemini Sparkle

Key Takeaways:

  • Pipistrel Aircraft, a Textron subsidiary, successfully conducted the first piloted flight of a liquid hydrogen-powered electric aircraft, the HEAVEN project HY4 demonstrator, from Maribor, Slovenia.
  • The aircraft utilizes a liquid hydrogen fuel cell to generate electricity for its electric motor, a method claimed to double its range to approximately 800 nautical miles compared to compressed hydrogen gas.
  • This maiden flight is considered a significant milestone for practical, emissions-free aviation, demonstrating the success and potential of alternative sustainable fuels for future aircraft.
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https://www.youtube.com/watch?v=uj-Yw3on2tI

Textron subsidiary Pipistrel Aircraft flew the first piloted liquid hydrogen-powered electric aircraft last Friday. The HEAVEN project HY4 demonstrator took off from Maribor, Slovenia, with two pilots onboard and “demonstrated safe and efficient operation throughout multiple flight tests,” the company said. The hydrogen is used by a fuel cell that creates electricity for the electric motor. Pipistrel claims the use of liquid hydrogen instead of compressed hydrogen gas doubles the range of the aircraft to about 800 nautical miles.

Pipistrel Chief Engineer Tine Tomažič said the flight is a milestone in making emissions-free flight practical. “At Pipistrel, our aim is to be the pioneer of future flight and playing a role on the liquid hydrogen tank integration, we, along with all the other partners involved, are able to demonstrate the success of alternative sustainable fuels, ready to power the aircraft of tomorrow.”

Russ Niles

Russ Niles is Editor-in-Chief of AVweb. He has been a pilot for 30 years and joined AVweb 22 years ago. He and his wife Marni live in southern British Columbia where they also operate a small winery.
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