Wind tunnel investigations were conducted on a 1:50 scale model of a 35 m tall mosaic tower with an equilateral triangular cross-sectional shape featuring rounded corners. Two different models and measurement schemes, viz., rigid/aerodynamic model and aeroelastic model were adopted for the study. For the rigid/aerodynamic model, force/moments acting on the model were measured for angles of wind incidences in the range of 0° to 120° at different wind speeds in the range of 5.72 m/s to 20.02 m/s. The aeroelastic model has been instrumented to measure the bending moment and tip deflections. Tests were carried out for various angles of wind incidences in the range of 0° to 120° at different wind speeds in the range of 8.58 m/s to 28.59 m/s. Based on the comprehensive analysis of test data of all the test cases, the aerodynamic force coefficients and final design bending moment have been obtained. It has also been inferred that the vortex shedding effects are not dominant for the critical load case, thereby ensuring structural safety for cross-wind effects.