The feasibility of remote in-flight boundary layer visualization via infrared in incompressible flow was established in earlier flight experiments. The past year's efforts focused on refining and determining the extent and accuracy of this technique of remote in-flight flow visualization via infrared. Investigations were made into flow separation visualization, visualization at transonic conditions, shock visualization, post-processing to mitigate banding noise in the NITE Hawk's thermograms, and a numeric model to predict surface temperature distributions. Although further flight tests are recommended, this technique continues to be promising.Shiu, H. J. and vanDam, C. P.Armstrong Flight Research CenterBOUNDARY LAYER SEPARATION; FLIGHT TESTS; INCOMPRESSIBLE FLOW; FLOW VISUALIZATION; INFRARED RADIATION; BOUNDARY LAYERS; TEMPERATURE DISTRIBUTION; THERMOGRAPHY; SEPARATED FLOW; DIAGNOSIS...