# ZeroAvia flies a 19-seat Dornier 228 with one engine replaced by its hydrogen-electric powertrain

Canonical page: https://technooptimist.io/stories/zeroavia-flies-a-19-seat-dornier-228-with-one-engine-replaced-by-its-132e0c44
Date: 19 Jan 2023
About: [ZeroAvia](https://technooptimist.io/companies/zeroavia.md) · [ZA600](https://technooptimist.io/aviation/za600.md)
Original source: https://www.engineeringnews.co.za/article/largest-hydrogen-electric-test-bed-aircraft-to-date-makes-successful-first-flight-2023-01-20

ZeroAvia flew its Dornier 228 testbed from Cotswold Airport in England with the left turboprop swapped for its 600 kW hydrogen-electric powertrain and the right engine left standard. The roughly ten-minute flight covered taxi, take-off, a full circuit and landing, the largest aircraft flown on hydrogen-electric power at the time.

## Key facts

- Two fuel cell stacks plus lithium-ion batteries for take-off power and redundancy.
- Hydrogen tanks and fuel cells sat inside the cabin on the testbed; production versions mount them outside.
- Plan at the time: certification submission in 2023 and deliveries from 2025, dates that later slipped.

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