FinEx – Fin Experiment on HIFiRE-5

Kurzfassung

A set of four ceramic fins will fly as a passenger experiment onboard the american-australian hypersonic vehicle HIFiRE-5. The paper describes their lay-out and design. They consist of C/C-SiC and are mounted to the rocket by aluminum fin shoes. With a total of eight implanted thermocouples, the fins serve to determine three-dimensional heat flux to the CMC fins on the basis of a non-integer system identification approach. Both, the approach and the calibration procedure are described. It is, moreover, demonstrated that the fins are ready for flight.