Meteomatics unveils world’s first drone to reach the stratosphere

Summary

Swiss-based weather technology company Meteomatics has introduced Strato, a multi-rotor unmanned aerial vehicle. The company claims that, thanks to heated propellers and real-time sensors, the aircraft reached an altitude of 34,245 feet (10,438 meters) in the stratosphere. Atmospheric profiles collected at this altitude are traditionally obtained using weather balloons.

Why it matters

If the altitude claim is verified, Strato could fill the observation gaps between fixed-time radiosonde launches. This would allow airlines, aviation operators, and high-resolution forecast models (US1k, Euro1k) to request upper troposphere data at specific locations on demand, rather than relying on drifting balloon trajectories. Reusable and targeted atmospheric sampling would be a significant step toward more detailed and operationally useful weather intelligence.

Highlights

• An active propeller de-icing system and wind resistance up to 80 mph allow the aircraft to fly even in conditions that typically ground most multi-rotor UAVs.
• Unlike one-way weather balloons, Strato flies to a selected point, takes a sample, and returns to base.
• Real-time telemetry data, such as altitude, wind, and icing warnings, is transmitted to the operator throughout the ascent and descent.

Critical take

Meteomatics has not shared information regarding battery capacity, endurance, payload, or the exact conditions of the record flight. No independent verification has been provided for the 34,245-foot claim. The article itself acknowledges the lack of comparative data demonstrating that Strato actually improves forecast accuracy compared to current methods. Therefore, the title 'first stratospheric multi-rotor' relies entirely on the company's own assertions.