The balance attaches to the vertical (right side looking upwind) wall of the wind tunnel working section. It is designed for air flows from right to left when the balance is viewed from the front. The force balance will directly measure lift, drag, and pitching moment. NOTE: In the Edmonds wind tunnel, lift is measured downward in the lab frame. This means we fly models upside down in the test section. The force balance can measure a maximum of 100N lift, 50N drag, and 2.5Nm Pitching moment.
The Edmonds wind tunnel has the capacity to measure total pressure at up to 32 individual locations or "tappings" simultaneously during your experiment. To use this feature, your model must be designed with tappings. Note: Measuring pressure via tappings prevents use of the force balance. If force balance measurements are desired, your model must be run with and without tappings.
The Edmonds wind tunnel has two pitot tubes for your use. One pitot tube is designated to measure the freestream wind speed of the wind tunnel. The second pitot tube can traverse vertically to mesaure a downstream pressure profile behind your model.
The Edmonds wind tunnel has a smoke generator that can be used to visualize the airflow around your object. Getting good pictures or video can be tricky, so bring your photography skills!