Significant progress has been achieved during the first year of this Challenge effort, in developing and simulating configurations which highlight the main scramjet inlet flow path alternatives. In particular, three different types of inward-turning inlets have been explored, including the rectangular cross-section, scoop and jaws' designs. Each flowpath has been discretized and subjected to inviscid laminar and turbulent analyses with highly-scalable solvers at design and off design conditions ranging from ...