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Pioneer Spirit Drives Swiss Solar-Powered Plane Altitude Attempt

Domjan surpassed the previous solar plane altitude record of 9,235 meters set in 2010, marking a key step toward solar-powered stratospheric flight, his team said.

  • Swiss pilot Raphael Domjan flew the SolarStratos solar-powered plane from Sion airport, Switzerland, aiming to set a new altitude record on Sunday.
  • Domjan sought to surpass the 2010 record of 9,235 metres set by Solar Impulse, but rising warm air thermals needed for ascent failed to appear, limiting his climb.
  • He reached 8,224 metres after around four and a half hours but turned back to preserve battery power for future attempts, planning to try again when conditions improve.
  • Domjan expressed that being a pioneer and an adventurer involves taking risks without knowing if success is guaranteed, and committed to persevering with attempts until reaching an altitude of 10,000 metres.
  • This milestone advances the mission to demonstrate solar energy's potential in aviation and encourages further efforts toward reaching stratospheric flight powered only by the sun.
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A Swiss pilot has set a new altitude record for a solar aircraft: Raphaël Domjan rose to 9521 metres with his Solarstratos machine

·Vienna, Austria
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The solar-powered SolarStratos will soon be aiming for the stratosphere to prove that solar energy can be a widely used energy source in aviation.

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Swiss pilot takes big step closer to solar plane altitude record

Swiss pilot Raphael Domjan got within around a thousand metres of setting a new altitude record in a solar-powered plane on Sunday as he chases the goal of breaking the 10,000 metres barrier.

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TechXplore broke the news in on Friday, August 8, 2025.
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