Air cooled bucket for a turbine

A bucket for a turbine, said bucket comprising:

• a dovetail portion configured to couple said bucket to a turbine wheel, said dovetail portion comprising a lower surface;
• a shank portion extending from said dovetail portion;
• an airfoil comprising a root portion, a tip portion, an airfoil shape, and a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table I, wherein Z is a distance from said lower surface of said dovetail portion, and X and Y are coordinates defining the profile at each distance Z from said lower surface;
• and
• a plurality of cooling passages, said plurality of cooling passages comprising no more than five cooling passages extending between said root and said tip portion of said airfoil, each of said cooling passages exits at said tip portion, said plurality of cooling passages are positioned in a camber line pattern.