This SAE Aerospace Information Report (AIR) provides a performance station designation system for unconventional propulsion cycles and their derivatives. The station numbering conventions presented herein are for use in all communications concerning propulsion system performance such as computer programs, data reduction, design activities, and published documents. They are intended to facilitate calculations by the program user without unduly restricting the method of calculation used by the program supplier. The contents of this document will follow AS755 where applicable.
Aircraft propulsion technology continues to evolve and advance to meet changing requirements and challenges for improved performance and capabilities. This continuing evolution leads to a growing complexity and use of unconventional propulsion cycles not yet standardized within industry to a level of those presented in AS755. An industry desire to provide information on station numbering and nomenclature descriptions for these unconventional cycles has emerged.