Solar drone with jumbo jet wingspan broke a flight record—then it crashed

A solar-powered drone with a wingspan comparable to a Boeing 747 recently completed a record-breaking eight-day flight before crashing into the sea. The aircraft, originally known as Solar Impulse 2, was repurposed by Skydweller Aero as an uncrewed test platform for perpetual flight and maritime patrol missions. The drone took off from Stennis International Airport in Mississippi on April 26 and participated in the US Navy’s Fleet Experimentation (FLEX) exercises near Florida’s Key West before its loss. The drone’s 236-foot carbon-fiber wings were covered with over 17,000 solar cells, enabling it to operate solely on renewable energy and batteries. Skydweller Aero modified the original Solar Impulse 2 to carry up to 800 pounds of payload and equipped it with radar, visual, and thermal imaging systems. During the FLEX 2026 exercises, the drone conducted continuous surveillance for four days, acting as a communications hub and supporting ship tracking via AIS transponders. The Navy highlighted the integration of commercial drones with crewed helicopters and the littoral combat ship USS Wichita in a simulated drug interdiction scenario, which culminated in the destruction of several captured drug boats. While the specific role of the Skydweller drone in the drug interdiction exercise remains unclear, the event is part of broader US Southern Command operations targeting transnational organized crime in the Caribbean and Pacific. Since September 2025, SOUTHCOM has conducted numerous lethal strikes against alleged drug trafficking vessels, resulting in nearly 200 deaths and raising legal and human rights concerns. The drone’s extended flight capabilities and autonomous operations demonstrated during the exercise underscore the growing role of unmanned systems in maritime security and military applications. The crash marks the end of Solar Impulse 2’s pioneering legacy, which included the first solar-powered crossings of the Atlantic and Pacific oceans. Its transformation into a military testbed reflects evolving priorities in drone technology, emphasizing endurance, payload capacity, and integration with manned assets for complex operational scenarios. The loss of the drone at sea highlights both the challenges and potential of solar-powered unmanned aircraft in defense and surveillance missions.