Ampaire flies hybrid electric aircraft in UK

Ampaire EEL
Ampaire's hybrid-electric Cessna 337

Ampaire has flown its first hybrid electric flights in the UK, crossing the Pentland Firth from Kirkwall Airport on the Orkney Isles to Wick John O’Groats Airport on the Scottish mainland. 

It’s the first of a set of demonstration flights in the UK, with Ampaire expected to fly from Exeter Airport in coming weeks.

The trials are part of the Sustainable Aviation Test Environment (SATE) project, which is being led by Highlands and Islands Airports Limited (HIAL).

SATE is based at Kirkwall Airport in Orkney, which is also home to the UK’s first low-carbon aviation test centre. SATE forms part of the UKRI’s Future Flight Challenge, created to test low-carbon aviation technologies.

Ampaire’s Electric EEL technology demonstrator is a modified six-seat Cessna 337. The centreline twin runs on battery power and a conventional combustion engine.

Ampaire is developing a line of hybrid electric powertrain upgrades that will reduce emissions and operating costs by as much as 25 percent initially, allowing regional airlines to better serve lifeline routes in Scotland and around the world.

Ampaire test pilot Justin Gillen said, “Today’s flight to Wick went without a hitch, flying at 3500 feet and 120 miles per hour.   The Electric EEL is easy to fly and we’ve achieved a total five hours here so far.”

Lorna Jack, chair of HIAL, said, “The SATE project is a very important collaboration for HIAL. Our involvement means we can support innovative projects from our partners to achieve a shared goal, decarbonise our operations and deliver environmentally sustainable aviation.

“Ampaire is leading the way in delivering electric-powered aircraft that could provide a viable alternative power source for the aviation sector. It is very exciting to see this technology being tested for the first time in Scotland and we are proud that Kirkwall airport is the hub for this and future SATE projects.”


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  • Pete says:

    Interesting, but frustrating that you can’t find anything about the way in which it is hybridised – is one prop electric and one avgas? What’s the setup?

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