Creating smooth surface for an aerofoil using multiple aerofoils section

[s_s27 (S K S)]

Hi Everyone,
I’m new to Rhino 8 and working on modeling a 3D turbine. I’ve created the turbine geometry, but the blades currently consist of many segmented surfaces, as you can see in the screenshot below

. I’m having trouble generating a single smooth surface for the blade without losing its aerodynamic shape. Ideally, I would like to simplify the blade geometry to a single surface (or just 2–3 surfaces), similar to how the nacelle section appears:

. This is important because I intend to use the geometry for a CFD simulation, and the multiple segmented surfaces on the blade are causing issues during meshing.

I’ve attached my .3dm files below for reference:
NACA63418_updated_3blade.3dm (13.4 MB)
Final_NACA63418.3dm (4.8 MB) Any suggestions on how to create a clean, continuous blade surface while preserving the original airfoil shape would be greatly appreciated.

Thank you in advance!