{"id":70037,"title":"Stralis 🛫 - Emission free hydrogen electric aircraft","tagline":"Our planes fly 10 times further than battery electric alternatives, with a lower operating cost than fossil fuel powered aircraft.","body":"Hi! We’re [Bob](https://www.linkedin.com/in/bobcriner/) \u0026 [Stuart](https://www.linkedin.com/in/stuartjohnstone1/) from [Stralis Aircraft](https://stralis.aero/) in Australia. We make emission free hydrogen electric aircraft to help decarbonise air travel. We have $50M in LOIs for our launch product, a 15 seat aircraft with a range of 800 km that enters service in 2026 [with launch customer Skytrans](https://www.theguardian.com/world/2022/jun/30/queensland-airline-skytrans-unveils-plans-for-australias-first-hydrogen-fuelled-plane).\n\n![uploaded image](/media/?type=post\u0026id=70037\u0026key=user_uploads/1205655/4a8710bf-c888-40cf-9f99-5e2f9c82b9ce)\n\n**Ask:** 🙏 Intros to airlines or aircraft operators that might be interested in our products would be greatly appreciated. Contact: [bc@stralis.aero](mailto:bc@stralis.aero)\n\n**Problem - Alternatives Compromise on Range or Cost**\n\nAs other modes of transport decarbonise, aviation’s contribution to global emissions will increase. Based on our first hand experience, we believe other sustainable flight alternatives compromise on:\n\n* Battery Electric - limited range \u0026 payload\n* Hybrid Electric - expensive to operate, limited emission reduction\n* Sustainable Aviation Fuel (SAF) - expensive \u0026 emits other harmful pollutants (NOx, sulphates, particulates)\n\n**Solution - Hydrogen Electric Propulsion**\n\nWe're convinced hydrogen electric is the cheapest way to rapidly decarbonise 50% of commercial flights.\n\n* How it works - Green hydrogen and air are combined in a fuel cell stack to produce electric power, which is used by an electric motor to turn a propeller. The only thing emitted during this process is water.\n* Our proprietary hydrogen electric propulsion system is 35% lighter than the competition, unlocking useful aircraft ranges at low cost.\n* Our first product is a retrofit of an already certified aircraft, allowing us to get to market quicker and cheaper.\n* We plan to deliver 50,000 of our 48 seat SA-1 aircraft by 2050, generating $850B in revenue.\n\n**Our Backstory**\n\nWe met in 2017 at [magniX](https://www.magnix.aero/), leading teams developing electric aircraft propulsion systems for the world’s first battery powered eBeaver and eCaravan flights. The Stralis team has 85 years of aerospace experience, having developed, flight tested and certified aircraft at GoogleX, [Heart Aerospace (YC W19)](https://heartaerospace.com/), [Ampaire](https://www.ampaire.com/), Airbus, Boeing, Bombardier and Gulfstream. Now we’re on a mission to make Stralis the world’s leading emission free aircraft company. Spread the good word!\n\n![uploaded image](/media/?type=post\u0026id=70037\u0026key=user_uploads/1205655/03a6b905-1ceb-47e8-a006-4f45dcfaec8b)\n\n","slug":"IDd-stralis-emission-free-hydrogen-electric-aircraft","created_at":"2023-03-08T05:29:54.024Z","updated_at":"2026-05-25T03:52:40.215Z","total_vote_count":45,"url":"https://www.ycombinator.com/launches/IDd-stralis-emission-free-hydrogen-electric-aircraft","share_image_url":"//bookface-static.ycombinator.com/assets/ycdc/yc-og-image-c440a0ad1dacfb86eeeb343717479cc54d256614449b4ef719977a0a451f8bc8.png","company":{"id":28075,"name":"Stralis Aircraft","slug":"stralis-aircraft","url":"https://stralis.aero/","logo":"https://bookface-images.s3.amazonaws.com/small_logos/e6cd43124bbe625dfa17c771db4a40a68e9ddccb.png","batch":"Winter 2023","industry":"Industrials","tags":["Hard Tech","Hydrogen Energy","Airplanes","Climate","Electric Vehicles"],"search_path":"https://bookface.ycombinator.com/company/28075"}}