The Light Cavoral solar drone, developed by the eleventh Research Institute of the China Aerospace Science and Technology Corporation (CASC), completed its first flight on November 11, 2026 in the northwest of the country. It is the first medium-sized and small-sized commercial UAV powered entirely by solar power in China, the developer confirmed.

The aircraft is 3.2 meters long and has a wingspan of 8 meters, with a take-off weight of 45 kilograms and a load capacity of more than 5 kilograms. Its service ceiling reaches 7,000 meters and it can remain in the air for up to 30 hours, operating continuously during the day and night thanks to a system of solar panels integrated into the wings that charge onboard batteries while flying.

The test flight validated the flight control, avionics, energy storage, stability and handling systems, from takeoff to landing. It can take off without the need for a runway after only 20 minutes of ground preparation, launching from a vehicle, making it suitable for rapid operations in remote areas or with limited infrastructure.

Light Cavalry is designed for commercial missions that require sustained coverage at low altitude: inspection of electrical transmission lines, pipelines and rail corridors, land surveying and mapping, natural resource surveys, rapid reconnaissance in disaster-stricken areas, and monitoring of large-scale targets. Its 30-hour autonomy would allow inspection missions covering several hundred kilometers in a single flight.

For Latin America and Mexico, China's advance in commercial solar drones has direct implications for the renewable energy and infrastructure sector. The ability to inspect transmission lines and pipelines with long-lasting, low-operational-cost aircraft could be a model to follow for countries with extensive power grids and hard-to-reach geographies.

The development marks the passage of solar UAV technology from the laboratory to the market, paving the way for the commercial application of solar-powered low-altitude aircraft in China. With this milestone, the country is positioned as a key player in the mid-size solar drone segment, a niche that is still underexploited on a global scale.
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Sources:

• Global Times — China's first commercial-grade solar-powered drone completes maiden flight

• People's Daily Online — China's solar-powered drone completes maiden flight, filling commercial gap

• Interesting Engineering — Fully solar-powered drone with 30-hour endurance makes debut flight in China

• pv magazine Global — CASC completes maiden flight of solar-powered UAV in China

• CGTN — China's first commercial-grade solar-powered UAV makes maiden flight