One other “classic” way to do this is to use Sweep2Rails to create a surface, being careful to add slashes to guide the isocurve direction in the way that you want. Also make sure you check the “maintain height” box if you want the curves scaled only in 1D between the rails. Once the surface is there, use Divide to divide one of the input rails into the number of points that you want arrayed curves, then ExtractIsocurve on the surface in the V direction at each point. Delete the surface.