Benchmark active controls technology model aerodynamic data

The benchmark active controls technology (BACT) model is a part of the Benc hmark Models Program (BMP). The BMP is a NASA Langley Research Center progr am that includes a series of models that were used to study different aeroe lastic phenomena and to validate computational fluid dynamics (CFD) codes. The primary objective of BACT testing was to obtain steady and unsteady loa ds, accelerations, and aerodynamic pressures due to control surface activit y to calibrate unsteady CFD codes and validate active control design tools. Three wind-tunnel tests in the Transonic Dynamics Tunnel have been complet ed. The first and parts of the second and third tests focused on collecting open-loop data to define the model's aeroservoelastic characteristics, inc luding the flutter boundary across the Mach range; these data are presented . An extensive database of over 3000 data sets was obtained. This database includes steady and unsteady control surface effectiveness data, including pressure distributions, and overall model loads due to deflections of a tra iling-edge control surface and upper and lower surface spoilers.