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Full-flow staged combustion.
The holy grail of rocketry

Full-flow staged combustionPropellant flow · general arrangementScale NTSSheet 1 / 1Liquid methaneCH4 · 111 KLiquid oxygenLOX · 90 KFuel turbopumpOxidizer turbopumpOCVCoolant inRegenerative nozzleSection · cooling jacketFCVCoolant outFuel-rich preburnerOxidizer-rich preburnerFuel-rich gasOx-rich gasMain chamberInjectorThroatExitOverall lengthØ chamber
Cycle
Full-flow staged combustion
Propellants
Liquid oxygen / liquid methane
Thrust
800 kN (~80 tons)
Design life
60+ flights
Line drawing of the Everest engine

Powerhead & valves

Everest powerhead plumbing and valves
Everest injector head and propellant lines
Printed copper lattice of the Everest thrust chamber
Everest nozzle and feed lines
An Astrobase rocket lifting off from its launch pad at dusk
Configuration
Two-stage to orbit
Stage configuration
4 × EVEREST on booster, 1 × EVEREST on upper stage
Payload
8 tons expendable, 3 tons reusable
Structure
Stainless steel
Reusability
Designed for same-day reusability with minimal refurbishment
Diameter
4 meters

One EVEREST produces enough thrust to lift a fully loaded Boeing 737 off the ground, and a cluster of them lifts 8 tons to orbit.

Astrobase is working on frontier propulsion and vehicle architectures to help humanity become a spacefaring civilization. Want to solve some of the toughest problems in engineering?

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