Flagship R&D · 8 prototype flights

Straton Glider
stratospheric return system

A fully autonomous glider that detaches at altitude and flies your payload back to the launch point — making meteorological probes and stratospheric experiments reusable instead of disposable.

32 km
Autonomous return
8
Prototype flights, year one
<250 g
All-up weight
Straton Glider

Every day, radiosondes fall from the sky — and stay there

Weather services worldwide launch meteorological probes daily, and nearly all of them are lost where they land. The Straton Glider brings them home — same-day reuse, lower cost per sounding, less litter in the landscape.

Autonomous

Returns payloads from over 30 km with no human input — to the launch point or a predefined landing zone.

Reusable

Lowers mission cost, turnaround time and environmental impact, flight after flight.

Regulation-friendly

Stays under 250 g all-up weight, easing flight permissions across jurisdictions.

Safe recovery

Deploys a parachute at low altitude for a soft landing in tight areas.

Proven in flight, now scaling up

The first prototype flew 8 missions in its first year, proving reliability and precision in real-world conditions — including a fully autonomous return from 32 km altitude.

Development now focuses on the next generation:

  • Custom flight controller — purpose-built avionics for stratospheric descent and autonomous navigation
  • Custom airframe — a purpose-designed structure replacing the first prototype's platform
  • Scalability — the design is ready to scale for larger experiments
  • Meteorological sounding & atmospheric research
  • Environmental and biological sample return
  • Academic and student-led high-altitude experiments

Launch under a balloon → detach at altitude → autonomous glide home → parachute touchdown → refurbish & refly.

Test the Straton Glider in real operations

We are looking for early adopters and partners interested in testing the Straton Glider in real-world operational scenarios — especially meteorological services and research institutions.

Become an early adopter