The Vehicle
A new class of reusable hypersonic drone.
4 meters. Mach 5. 200 km. Runway to runway.
The Vehicle
Four meters. Built to fly again.
Envol, shown to scale, four meters, nose to tail.
Specifications
The numbers.
Envol is sized for cadence: small enough to operate from a conventional runway, capable enough to reach space and return intact.
| Maximum altitude | 200 km |
|---|---|
| Maximum speed | Mach 5 |
| Length | 4 m |
| Payload | 30 kg |
| Turnaround | < 6 h |
Mission Profile
Runway to runway, in one flight.
Takeoff
Two jet engines lift Envol from a conventional runway. No launch pad, no tower.
Rocket ascent
The cryogenic rocket engine ignites mid-flight and drives the climb.
Apogee
Envol reaches 200 km and Mach 5, the high atmosphere and the edge of space.
Gliding
Engines off, Envol glides back through the atmosphere under autonomous control.
Landing
It lands on the same runway. Inspected, refuelled, and ready in under 6 hours.
The Capability Void
The 20-200 km gap.
Aircraft stop near 20 km. Satellites start above 200 km. Between them sits a band that almost nothing reaches repeatedly, the high atmosphere.
Sounding rockets fly it once and fall away. Balloons drift. Envol flies the band on demand, returns, and flies it again.
Repeatable access to a band the world can barely reach.
Science
Atmospheric science from 0 to 200 km.
Envol carries instruments through the full vertical column of the atmosphere and into microgravity at apogee. Suborbital experiments that once needed a sounding-rocket campaign now fly on a repeatable schedule, with the payload recovered intact after every flight.
Faster iteration. Lower cost per data point. Sovereign access for European research teams.
Industry
Hardware qualification in real environments.
Qualifying hardware for hypersonic and space conditions usually means simulation, then a long wait for a rare flight slot. Envol shortens that loop. Test articles fly in genuine Mach 5 and near-space conditions, return for inspection, and fly again within hours.
Faster validation cycles, with real flight data instead of models alone.
Defense
High-altitude operations.
Envol is a dual-use platform. For defense and security partners, it offers sovereign access to the high atmosphere and a reusable, runway-operated system for high-altitude operations.
Specific applications are discussed directly with partners.
Program
From prototype to commercial flight.
- XP1 · 2026-27Commercial prototype. First flights of the integrated vehicle.
- XP2 · 2027-28Full flight envelope. Industrializable version.
- 2028First commercial flights.
Talk to the team.
For science payloads, hardware qualification, or high-altitude operations.