source:[1] VX4 Becomes Valo As Vertical Reveals Production Configuration - Aviation Week Network (https://aviationweek.com/aerospace/advanced-a ...)[2] Staff exodus hits ZeroAvia’s UK operation - FlightGlobal (https://www.flightglobal.com/aerospace/staff- ...)[3] Boeing-backed Start-up Evio Launches Hybrid-electric Regional Airliner - Aviation International News (https://www.ainonline.com/aviation-news/futur ...)