[3] Favorable crew evaluations of a prototype led to full scale development and qualification that would run until 1992.

The ACES incorporates gloves on disconnecting lock rings on the wrists, liquid cooling and improved ventilation, and an extra layer of insulation.

The "thermal and chemical environment of the Columbia accident (the temperature and oxygen concentration) was "much more severe" than in the SR-71 accident, however, and the report recommended that future crew survival suits be evaluated for thermal and chemical resistance as well as (as USAF suits had been evaluated previously) pressure and windblast.

[8] The Artemis program instead planned to use a modified ACES called the Orion Crew Survival System (OCSS).

This suit will have increased mobility in comparison to its Space Shuttle counterpart and will use a closed-loop system to preserve resources.