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Eris
Eris is an orbital launch vehicle in development operated by Gilmour Space Technologies of Gold Coast, Queensland, 25 m tall, 305 kg to low Earth orbit, 3 stages.
| Operator | Gilmour Space Technologies · Gold Coast, Queensland |
|---|---|
| Status | In development |
| First flight | 2025 |
| Height | 25 m |
| Diameter | 2 m |
| Liftoff mass | 34 t |
| Stages | 3 |
| Payload to LEO | 305 kg |
| Payload to SSO | 215 kg |
| Engines | 4 × Sirius hybrid · 1 × Sirius · 1 × Phoenix |
| Propellant | Hybrid — solid fuel with liquid oxidiser |
| Reuse | Expendable — nothing is recovered |
| Launch sites | Bowen Orbital Spaceport, Queensland |
The first Australian-built rocket to attempt orbit from Australian soil. Hybrid motors are rare in orbital use: simpler and safer than liquids, harder to get performance from.
About Gilmour Space Technologies
Australia's orbital launch attempt, on hybrid rocket motors, from a private spaceport in north Queensland. Founded 2012. Official site.