Astrobase Space Technologies recently unveiled Everest, an 800 kN Full-Flow Staged Combustion rocket engine, as India’s private space sector targets reusable, high-cadence orbital launches.
About Everest Engine:
It is an 800 kN Full-Flow Staged Combustion (FFSC) rocket engine.
It was developed by Astrobase Space Technologies, a Bengaluru-based Indian space-tech startup.
It is India’s first privately developed high-thrust FFSC engine.
It is designed for reusable medium-lift launch vehicles, supporting precision control, faster turnaround, and improved launch economics.
It is powered by liquid oxygen and liquid methane, a combination known as methalox, and is designed to produce about 800 kilonewtons of thrust in the vacuum of space.
What Is Full-Flow Combustion?
In a conventional rocket engine, some of the hot gases produced during combustion are used to power the turbopumps that push fuel and oxidiser into the main combustion chamber.
A full-flow engine takes this a step further.
Both the fuel and oxygen are first partially burned in separate pre-burners,producing hot gases that drive their respective pumps before both flows enter the main combustion chamber.
This allows the engine to operate efficiently at very high pressure while reducing stress on some components.
The design is widely considered among the most advanced approaches to rocket propulsion.
SpaceX is currently the only company to have flown an FFSC engine in an orbital rocket.
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