This REPORT is part of a project that has received funding from the SESAR Joint Undertaking under grant agreement No 699247 under European Union’s Horizon 2020 research and innovation programme.

This report presents the deliverable D5.1 “Simulations Results Database and Separation ConceptDevelopment” of the R-WAKE project. This D5.1 report has two main parts. The 1 st part describes the meaning and purpose of the database generated using the R-WAKE System simulations tools and used in the WV-Encounters Hazard Study. This part of report, together with the associated package of database files that contain the simulation results, constitutes the third expected tangible outcome of the project (O3): “Database of simulation results that will provide enough evidence to propose new Separation Schemes for further R&I activities”. The 2 nd part of the report provides the discussion and elaboration of a set of proposals for Separation Scheme improvements in En-Route operations, based on the body of evidence available in the generated simulation data. That is, the R-WAKE Concept Development. This part represents the central subject for the Safety and Robustness Analysis project tasks 5.2, reported in deliverable D5.2. D5.1 part2 together with D5.2 constitutes the fourth expected tangible outcome of the project (O4): “Evidence-based proposal for either maintaining current Separation Standards or adopting new ones”. The R-WAKE project addresses the SESAR 2020 Exploratory Research work-programme topic ER-07- 2015 - Separation Management and Separation Standards, within the area of Advanced Air Traffic Services (ATS). The R-WAKE project overall objective is to investigate the risks and hazards of potential wake vortex encounters in the en-route airspace, in order to assess potential enhancements for the Separation Standards and Separation Management methods in Europe.