helix Astro Mechanica teams with UK SME Helix to build hybrid-electric engines for the next generation of supersonic aircraft News Astro Mechanica teams with UK SME Helix to build hybrid-electric engines for the next generation of supersonic aircraft Astro Mechanica December 1, 2025 Series hybridisation: Turning the dirtiest flights into the most sustainable Opinions Series hybridisation: Turning the dirtiest flights into the most sustainable Carbon emissions August 24, 2025
