MagniX believes its electric propulsion system will be certified in late 2022. (Photo: MagniX) Los Angeles Mayor Eric Garcetti appealed to lawmakers to work with stakeholders and regional leaders to establish basic standards to create urban air mobility (UAM) networks that are safe, sensitive to local communities, intermodally linked, and accessible to everyone, not just the wealthy. Garcetti—who has worked with the World Economic Forum on UAM principles, as well as other private and public entities to help pave the way for UAM networks—was among a half-dozen witnesses outlining their visions for the future of aviation Wednesday during a House aviation subcommittee hearing on "The Leading Edge: Innovation in U.S. Aerospace."