The facility modifications necessary to install the segmented heater in the H2 Arc Heater were designed by AEDC engineers in 2015, and fabrication was accomplished in 2016. Checkout of H2 began in fall of 2016, with the first Key Performance Parameter test condition demonstrated successfully in December. Two more KPP conditions were demonstrated before the end of the year and four of the remaining six were demonstrated in January 2017. Pictured is the segmented heater and H2 Arc Heater test cell. (AEDC photo