A global (volume averaged) model pertaining to N2O discharges is used to design and to study electric propulsion applications,\r\nespecially helicon plasma thrusters fed with pure N2O and also with N2/O2 mixtures including air. Results obtained for N2O\r\nfeeding are discussed and compared to those pertaining to an air-like N2/O2 mixture feeding. An interesting similarity is observed.\r\nComparison of the N2O model results versus those of Ar shows lower ionization percentage with higher electron temperature for\r\nN2O propellant.
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