The Experiment

This is the model of our experiment setup, which was built with minor changes:

The experiment’s aim was to reduce and control the angular rate of the REXUS sounding rocket in the roll axis after yo-yo de-spin by using a cold gas system. Therefore, a control algorithm used the measured angular rates to calculate opening times for valves regulating the gas jets.

RaCoS operated with nitrogen, was lightweight and inexpensive to build by using commercial off-the-shelf components (COTS). Moreover, RaCoS tried helping to improve the milli-gravity environment of the REXUS rocket.

The experience gained through this experiment could be useful for further university projects. In the future, the system could be easily extended to the other two axes for full attitude manoeuvrability.