DLR HY4
{{short description|Hydrogen-powered aircraft type HY4}}
| {{Infobox aircraft begin
|name=HY4 |image=HY4 2016-09-29 ueber Flughafen Stuttgart.jpg |caption = |alt = }}{{Infobox aircraft type |type = Technology demonstrator |national origin = Germany |manufacturer = DLR and Pipistrel |design group = |designer = |builder = |introduction = |introduced = |retired = |status = In development |primary user = |more users = |produced = |number built = 1 |program cost = |unit cost = |developed from = Pipistrel Taurus G4 |variants with their own articles = |developed into = }} |
HY4 is a four seat hydrogen fuel cell powered aircraft. It made its maiden flight on 29 September 2016 from Stuttgart Airport, powered by gaseous hydrogen. It was designed by DLR Institute of Engineering Thermodynamics of the German Aerospace Center,{{cite web|url=https://www.aerospace-technology.com/projects/hy4-aircraft/|title=HY4 Aircraft|publisher=}}{{cite web|url=https://www.aviationpros.com/aircraft/business-general-aviation/press-release/12264576/aircraft-maintenance-technology-hy4-maiden-flight-of-the-hydrogen-powered-airplane|title=HY4: Maiden Flight of the Hydrogen Powered Airplane|website=www.AviationPros.com}}{{cite web|url=https://www.cnn.com/travel/article/hy4-fuel-cell-plane/index.html|title=The plane that emits only water|first=Sophie |last=Morlin-Yron|date=19 October 2016|website=CNN Travel}} based on the Taurus G4, manufactured by Pipistrel.{{cite web|url=http://www.digitaljournal.com/tech-and-science/technology/the-hy4-a-plane-that-runs-on-fuel-cells-and-emits-only-water/article/478172|title=The HY4 — a plane that runs on fuel cells and emits only water|date=26 October 2016|website=www.digitaljournal.com}}
The HY4, operated by DLR spinoff H2Fly, completed the world's first piloted electric flights powered by liquid hydrogen in September 2023, with one flight lasting over three hours.{{cite web|url=https://www.msn.com/en-gb/travel/news/h2fly-s-hy4-completes-first-ever-piloted-flight-of-liquid-hydrogen-powered-electric-plane/vi-AA1gTiE0|title=H2FLY's HY4 Completes First-Ever Piloted Flight Of Liquid Hydrogen-Powered Electric Plane|date=19 September 2023|website=www.msn.com}}{{cite web|url=https://www.h2fly.de/2023/09/07/h2fly-and-partners-complete-worlds-first-piloted-flight-of-liquid-hydrogen-powered-electric-aircraft/|title=H2FLY And Partners Complete World’s First Piloted Flight of Liquid Hydrogen Powered Electric Aircraft|date=7 September 2023|website=www.h2fly.de}}
References
{{Reflist}}
External links
- {{official|http://hy4.org/}}
- [https://www.h2fly.de/ H2Fly]
Category:2010s German experimental aircraft
Category:Hydrogen-powered aircraft