
Orion Launch Abort System Attitude Control Motor Lights Up Sky
Elkton MD (SPX) Dec 18, 2009 - It looked like a light show in Elkton, Md., on Tuesday, Dec. 15, as NASA ground tested a full-scale attitude control motor, or ACM. The motor operated with precision as its elaborate eight-valve control system opened and closed each valve at exactly the right moment with alternating bursts of light.













