Low Speed Wind Tunnel

The Lockheed Martin Aeronautics Company large Low Speed Wind Tunnel (LSWT) is located just off Richardson Road in Smyrna, Georgia, near the Atlanta Naval Air Station and Dobbins Air Force Base. It is equipped to support testing of vertical/short take-off and landing (V/STOL) or conventional low speed aerospace models in either of the two, respectively named, tandem test sections. Industrial models, such as automobiles, can also be tested in the facility. Variable frequency electrical power and a high-pressure air supply system are available to power simulated propulsion systems in the models or to satisfy other test requirements. Six-component aerodynamic forces and moments on the models are measured, when so mounted, by an external balance located below each test section or, when sting mounted, by an internal strain gauge balance. It should be noted that the V/STOL external balance is not currently functional. The balance output signals and the other channels of digital and analog signals are automatically recorded by an online data acquisition system.

Low Speed Wind Tunnel online data acquisition and monitoring are accomplished using a dedicated computer system located in the wind tunnel facility. Additional FORTRAN programs enable the data system to present raw or reduced data in tabular or plotted form in near real-time.