This report summarizes the work performed within FoT Aeronautical Systems, project Platform Analysis during the three-year cycle of 2023-2025. Descriptions of activities, conclusions and possible further work are presented. The Platform Analysis project is aimed at maintaining and developing the capability to perform aeronautical analyses of flying platforms, as basis for capability-assessment of threats, effectors and model development. The project has special focus on manned and unmanned combat aircraft to support study efforts for future Swedish combat air system development. During this three-year cycle, the project has performed studies on a generic loitering munition and manned fighter aircraft, radar signature analysis of hidden details and detection probability, and worked with data driven modelling of aerodynamic data. Three conceptual platforms representative of future fighter aircraft were studied to enhance the capability to utilize iterative methodologies for platform conceptual design and performance assessment, as well as building knowledge about design dependencies and trade-offs typical of those platforms. These studies have been multidisciplinary and have utilized data from multiple activities in disciplines such as aerodynamics, engine modelling and signature modelling for analysis and evaluation. Three master theses have been carried out within the scope of the project during this cycle, within applied and experimental aerodynamics. This was performed in conjunction with a newly started cooperation with the Royal Institute of Technology to build capability in the field of experimental aerodynamics. Two theses were focused on wind tunnel experiments, performing measurements on a propeller and a small-scale unmanned aircraft, while the third thesis focused on numerical analyses. Participation in international cooperation projects have also been financed through Platform Analysis, with project members partaking in AG60 in GARTEUR and AVT318, AVT-389, AVT-390 and AVT-415 in NATO STO.