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Completed TRL 5 (started at 5, targeting 9)
The current MEDLI2 baseline heat flux sensor configuration leverages the approach used for EFT-1. Similar configurations for a range of TPS’ (PICA and Avcoat) have been manufactured and then successfully tested via arc jet testing. Fabrication and assembly procedures have been developed. Modeling and analysis tools have been updated to reflect the characteristics of the heat flux plugs. Procedures for installation of the heat flux plugs into the aftbody SLA TPS have not been developed. Activities planned include defining and selecting the heat flux plug configuration, completing development of the fabrication and assembly process to emphasize the aftbody SLA TPS, updating the Modeling and Analysis tools, and conducting arc jet testing needed for the aftbody heat flux plugs.
Ability to directly measure surface heat flux on the backshell of a Mars entry vehicle.
Use on future missions to continue to improve predictive capability leading to reductions in backshell TPS mass.
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