Joby Aviation, a prominent player in the electric vertical takeoff and landing (eVTOL) industry, has recently conducted a significant test involving a large long-endurance hydrogen-powered drone in Oregon. Investigative news outlet Hunterbrook reported on the flight test, where the mysterious aircraft stayed airborne for over nine hours at Pendleton Airport. The test, conducted on June 30, 2025, showcased Joby's exploration of hydrogen propulsion as a potential range extender, with suggestions of military applications due to the likely unmanned nature of the aircraft. Joby's strategic diversification through acquisitions, such as H2FLY and XWing, highlights the company's focus on innovative technologies like hydrogen propulsion and autonomous flight. This recent milestone surpasses Joby's previous achievements, indicating progress in utilizing hydrogen for extended flight durations. The successful completion of a 523-mile journey by a hydrogen-powered eVTOL prototype in 2024 further emphasizes Joby's commitment to advancing propulsion solutions for the future of aviation.