May 17, 2021 For the Warfighter: Operational Test advances at NE21 As Northern Edge 21 concludes, the 53rd Wing is returning home having achieved major test objectives for multiple weapons systems May 3-14, 2021. In addition to F-15EX deep end testing and B-52 long-range kill chain milestones for hypersonic weapons, the 53d Wing’s F-35s, MQ-9s, F-15Cs and F-15Es,