Turbine generating energy is one of the most cost effective and renewable energy options for power generation. With this aim, finned piles are widely used to support offshore and onshore wind turbines. For oblique tension loading of short piles, the horizontal load deformation curve is dependent on the vertical load portion because it significantly affects the ultimate vertical load. Interaction diagrams are presented, which characterize the pile behaviour under inclined loads. Therefore, in the study, the model test results of finned piles oblique tension loads are presented the results indicate there is a significant increase in lateral resistance of the piles after mounting the fins close to the pile head. The increase in lateral resistance gained by placing the fins on a pile varies with geometries of the pile length. Increase in lateral resistance gained by placing the fins on a pile varies with geometries of the pile and fins. The lateral resistance increases with the increase in length of the fins until the fin's length is equal to 0.4 of the pile lengths. Increase in uplift capacity of the piles when using fins at the end of the. The existence of such fins at the lower part of the tested piles provided an ideal anchorage system because of the significant locking-up effect of the sandy soils within the fins, resulting in increased lateral resistance and uplift capacity.