Inexpensive, Rugged Oxygen Sensors Qualified for Flight

NASA Dryden Flight Research Center has ruggedized and qualified an inexpensive commercial off-the-shelf (COTS) oxygen sensor that accurately and reliably aids assessment, in flight tests, of the hazards associated with propulsion systems supplemented by oxidizers. Future flight-test vehicles continue to rely on such energetic propellants as liquid and/or gaseous oxygen and hydrogen for purposes of demonstration because these propellants deliver high specific impulses.