The main objective of the work is to increase the reliability of wind turbine blades through the blade angle orientation and also to increase the efficiency and running period of the wind turbine blades in Slight Extreme Climatic Conditions. The blade plays a vulnerable role, because it is the most important part of the energy production system. The material of the blade is to be wisely composed so has to posses the least weight and maximum strength. The design of the blade is to be carefully performed to enable in absorbing energy with its greatest efficiency which also accounts for the Energy saving methods. The application of specially designed lower airfoil has the ability to start at minimum wind speeds by providing initial torque and gathers speed as it increases work done per unit angle twist. Given that the importance of this work is the design of air blades and winglets, the blade design will be based upon the findings of this real time work. Computational gas dynamics plays a major role while determining the fluid flow over the wind blades and causing the blades to rotate, this also accounts in the intensity of revolution per minute.

Keywords : Wind Turbine Rotor Blades, Airfoil, Fluid Dynamics, Winglet ,Gas Dynamics.