Initially, the demo engine was meant to showcase DanSTAR's abilities in design and operating its own rocket engines. The engine was quite small and worked on simple principles, but this was perfect in order to get a grasp for what matters and what doesn't in rocket engine design. Additionally, it served as a tool for testing the test stand, as this engine could withstand severe hard starts and burn durations of more than 10 seconds without being actively cooled.

The copper chamber worked as a heat sponge, absorbing the immense heat that is created inside the chamber during operations. This is widely refered to in literature as capacitive cooling.

Instruments:

The demo engine was outfitted with a thorough sensor suite, capable of sensing feed pressure for both the oxidizer and fuel as well chamber pressure. It had 6 thermocouples located deeply inside the chamber wall to measure temperature at critical locations.