US Navy conducts 73-hour solar-powered flight test with Skydweller UAS for long-endurance ISR missions | Flight Global

https://www.flightglobal.com/military-uavs/us-navy-completes-73-hour-solar-powered-skydweller-uas-test/164032.article

https://www.navair.navy.mil/news/Navy-demonstrates-multi-day-solar-UAS-flight/Tue-07292025-1554