CONTENTS VOLUME 40 ISSUE 2 10 Commentary 2 Higher ethanol blends support the transition to a low-carbon future Member News 8 Making " connexions " TECH FOCUS: AErOSPACE 10 Unstoppable aerospace industry & innovation 16 Where the physical and digital meet 22 Standards roulette: which one to use for safety-critical software and hardware development? 24 How to write a digital-ready standard 26 AI, ML, DLA are subjects of new special issue of SAE's aero journal 22 Publications 32 A deep dive into aircraft accident reconstruction 34 The SAE EDGE Research Reports: The team behind many stories Professional Development 36 Pathways for auditing professionals SAE Foundation 37 Thank you for impacting the lives of young learners Advertising 38 Classified advertising 32 Engineering Events 28 SAE and INCE-USA cooperate to provide a unique conference experience On the cover Airbus family flight consisting of the A320neo, A330-200, A350-900, and A380. Airbus UPDATE February 2023 1