Compressor rotor blade airfoils

A compressor section comprising:

• a plurality of rotor blades arranged in a plurality of stages, each rotor blade of the plurality of rotor blades comprising an airfoil having an airfoil shape, the airfoil shapes of the plurality of rotor blades each having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in one of Table III, Table IV, or Table V, the Cartesian coordinate values of X, Y, and Z being defined relative to a point data origin at a base of the airfoil, wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances expressed in a unit of distance by multiplying the Cartesian coordinate values of X, Y and Z by a scaling factor of the airfoil in the unit of distance;
• and wherein X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each Z value, the airfoil profile sections at Z values being joined smoothly with one another to form a complete airfoil shape;
• wherein the plurality of stages comprises:
• a sixth stage comprising the airfoil having the airfoil shape with the nominal profile substantially in accordance with the Cartesian coordinate values of X, Y and Z set forth in Table III;
• a seventh stage comprising the airfoil having the airfoil shape with the nominal profile substantially in accordance with the Cartesian coordinate values of X, Y and Z set forth in Table IV;
• and
• an eighth stage comprising the airfoil having the airfoil shape with the nominal profile substantially in accordance with the Cartesian coordinate values of X, Y and Z set forth in Table V.