Erebus

The space industry is currently undergoing radical change in the field of re-usability. However, there is currently no way to reuse the upper stage of an orbital class rocket. This results in an increase in cost, which means satellite deployment, scientific research and space tourism are expensive and at times not practical. A reusable upper stage vehicle would open up affordable access to space for the public and private industries. A fully reusable launch system would reduce costs and increase launch cadence, sparking a new generation of space exploration. Erebus plans on achieving reusability with Nyx, an upper stage vehicle which uses proven and new technology that allows the vehicle to re-enter Earth’s atmosphere and re-launch with a quick refurbishment process. The methods used by Erebus to achieve reusability, include a reusable thermal protection system, moment controls to maneuver re-entry, and a throttleable propulsion system to safely land vertically. With these methods Nyx will be able to lift passengers and satellites into orbit, then deorbit, land and be reused, redefining the space industry.

Concept Of Operations:

Nyx Design:

Engine and Nozzle (MOC): The nozzle was designed for a specific Exit Area using the MOC (Method of Characteristics). Flow simulation of the conmbustion chamber was performed to obtain the flow velocity, temperature and pressure inside the combustion chamber.