2d vectors to 3d model in rhino

[jim s]

I am trying to cut a rudder blade for a sailboat on my cnc machine. The rudder is about 51" long by 10" wide by 2" thick at the thickest point. It is a foil shape like an airplane wing, and the foil tapers to about .75" thick at the very bottom of the rudder. The boat's designer has sent me the 2d vectors for the overall profile of the rudder and the foil shapes at given intervals along the length of the blade.

I'm trying to develope a 3d model of the rudder in rhino 4.0. Once I get the model, I can import it into my cnc software to develope the toolpath. I can import the 2d vectors into a blank rhino drawing, but how do I then make it into a 3d object?

Thanks