Adamidis, Stylianosdel Gatto, DarioMourouzidis, ChristosBrown, StephenPachidis, Vassilios2025-04-282025-04-282025-03-14Adamidis S, Del Gatto D, Mourouzidis C, et al., (2025) Installation effects of supersonic inlets on next-generation SST turbofan engines. Engineering Proceedings, Volume 90, Article number 50. 14th EASN International Conference on “Innovation in Aviation & Space towards sustainability today & tomorrow”, 8-11 October 2024, Thessaloniki, Greece,2673-4591https://doi.org/10.3390/engproc2025090050https://dspace.lib.cranfield.ac.uk/handle/1826/23806This study explores inlet-related installation effects on next-generation SST aircraft, focusing on supersonic business jets. Using a comprehensive framework with consistent thrust/drag bookkeeping and realistic modeling of inlet losses, including operational limits for “buzz” and distortions, the inlet drag accounts for 8.8% to 14.2% of the installed net thrust during the supersonic segment of the mission. Variable airflow control technology is assessed, with a scheduling methodology developed to optimize the inlet operation by minimizing the installed SFC. The results show that this technology improves the installed SFC by 0.80% during supersonic cruise, enhancing the overall propulsion system performance.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/supersonic inletinstallation lossesbypass airflow control systemspillage dragbypass dragtotal pressure recoveryexcess airflow managementinstalled SFCnext-generation SSTConference paper5674645090