AIAA/SAE/ASME 18th Joint Propulsion Conference : AIAA/SAE/ASME 15th joint propulsion conference 1979. AIAA/SAE/ASME 15th Joint Propulsion Conference : AIAA/SAE/ASME 16th Joint Propulsion Conference : AIAA/SAE/ASME 20th Joint Propulsion Conference. AIAA/SAE 14th Joint Propulsion Conference : AIAA/SAE/ASME Joint Propulsion Conference AIAA/SAE Fourteenth Joint Propulsion Conference AIAA/SAE/ASME Sixteenth Joint Propulsion Conference AIAA/SAE/ASME Joint Propulsion Conference