Selection of riso airfoil
 

HAI ALL...
I am doing a project on designing a blades for a wind turbine of 5 kw capacity using RISO -A1 airfoils.
can any one suggest me the different airfoils are suited for different section of the blades such as the root section, the mid section and the tip section????
i also know that the average co-efficient of lift of these airfoils are 1.55 but i dont know which one to select in specific .please post me the replies as soon as possible
thank you