Modeling question

[jrcasey]

Been taking a crack at this Solidworks thing (learning new 4 letter words)...and have a question. Have lots of CAD background...a dozen flavors of AutoCAD, IntelliCAD, Sketchup, and the money maker for the last 13 years TEKLA structures. All that to say this, SW is a different animal altogether. They literally threw all forms of "usual practice" out the window lol. So starting from scratch. I'm really just trying to get some flat patterns to generate DXF files to get GCODE from for a CNC router...Most of the fuselage could be (I already have...) drawn in 2D CAD and get the patterns easily. But apparently I'm a glutton for punishment and was going to try to model the curved parts...i.e. turtledeck and wing/tail skins. So I had some success on the lower fuselage skins...tapered box lofted from two sketches, turned to sheet metal, and can manipulate the result...i.e. unfold to a pattern. The turtledeck...not so much... sketched parabolic curves, try to create a loft between them and get various error messages. Ironically it "previews" the loft exactly like I want it, but when I click the green arrow it has a fit. Have watched more tutorials than I care to admit but haven't had an "ahHA!" moment yet. Figured this should be a common modeled part so thought I'd ask here. Picture attached.