Issue link: https://resources.mouser.com/i/1495601
usability, this process is cumbersome and costly. Parts should instead be carefully specified and obtained from reputable manufacturers with the proper documentation included. UAM safety documentation is similar to what is required in the automotive industry in terms of traceability and approval of lifecycle changes. Depending on the part and its functional safety requirements, automotive-certified components may, in fact, fulfill the needs of a UAM vehicle. There are of course different considerations when using components in air vehicles, but the general concept of assessing a risk profile for potential failures, then minimizing the chance of a catastrophic result is largely the same. At the end of the day, no vehicle—air, land, or otherwise—can be 100% safe in every eventuality. However, while no one would enter a flying vehicle that has a one in a hundred chance of failure, if the risk is reduced to one in a trillion, most would consider that acceptable. Regulation-wise, while the UAM is a new concept, ultimately these are air vehicles and would fall under the responsibility of the FAA in US airspace, and the EASA in the rest of the world. The FAA uses RTCA DO-254 as its safety guidance, while EASA uses EUROCAE ED-80, but both documents are largely the same and have been further harmonized by AC20-152A. As UAM usage gains more acceptance, we're likely to see further guidance on how such vehicles are built and certified and hopefully further harmonization to facilitate the build and safety certification process. C h a p t e r 3 | U A M F u n c t i o n a l S a f e t y At a component level, safety features are preferred (e.g., memory parity bits, lockstep processors) and a quality assurance process needs to be in place for each component. Not only are the component's design and features important, but also its production and sourcing, field experience, etc." João Filipe Ferreira Electrical Systems Engineer, Lilium 15 Addressing New Challenges in Urban Air Mobility