We are working on a complete set of open source technologies to support and perform cryogenic H₂+O₂ propulsion for terrestrial and extraterrestrial robotic flight.

Our H₂+O₂ project commenced with "A cryogenic H₂+O₂ technology set".

The Liquifier will produce cryogenic fluids from gases as may be produced by a Hoffman Apparatus powered by solar photovoltaic cells.

To complete the technology set, complementary materials and fabrication processes are in preliminary development for the Sagittarius craft.