Efficient wind turbines with high power to cost ratio require rotor blades of high quality. This requires a comprehensive ability to predict a blade's aerodynamic performance and structural response when exposed to a variety of air flow conditions. Aeroelastic algorithms that are able to achieve this efficiently and rapidly as a tool for preliminary design stages are an ongoing concern for the professional practitioners. These aeroelastic algorithms require validation data upon which their accuracy can be determined. To this end, a validation process was investigated and applied to determine the accuracy of the Preliminary Aeroelastic Analysis of Wind Turbine (PAAC-WTB) algorithm, an algorithm that was recently developed in the Advanced Dynamic Research gtoup. A preliminary wind tunnel test was performed on a 3D-printed reduced scale model of the National Renewable Energy Laboratory (NREL) S809 blade, and experimental results were obtained to compare against algorithm results. The results show some agreement, providing a basis for further experimental validation to be undertaken. Moreover, CFD and FEA analysis was then performed, using ANSYS, on the S809 airfoil and the S809 experimental blade for various conditions and parameter values. Comparison of algorithm results to ANSYS results showed good agreement.Thus, the research concluded that the validation process was a success.ii ReReynold's number xii Chapter 1