Event
Zephyr completes 67-day continuous stratospheric flight
Key points
- Zephyr concluded 67 days, 6 hours, and 52 minutes of continuous flight in the stratosphere on April 28, 2025.
- The flight surpassed Zephyr's previous 64-day record from 2022.
- Treat as a long-endurance flight milestone for the HAPS platform, not as a commercial deployment.
Company context
AALTO is an Airbus subsidiary commercialising Zephyr, a solar-powered High Altitude Platform Station operating in the stratosphere above conventional air traffic. The company designs, manufactures, and operates Zephyr to provide persistent connectivity, Earth observation, and government C4ISR services from long-endurance fixed-wing stratospheric aircraft.
Context
- Company
- AALTO
- Segment
- Aerial
- Event type
- Production Milestone
- Geography
- Farnborough · United Kingdom