Wing loading says how hard it has to fly. Wing cube loading says how it will feel — it is scale-invariant, so it compares a 400 mm foamie with a 2 m warbird honestly.
| WCL | flies like |
|---|
Stall speed is √(2W / ρ·S·CLmax) — wing only. It ignores fuselage lift, prop wash over the inner panel and any Reynolds penalty, so on a small model it reads optimistic; treat it as the floor, not the number. CLmax 1.1 is a fair flat-bottom/semi-symmetric section at RC Reynolds; use ~0.9 symmetric, ~1.3 well-cambered. Section CLmax at your actual Re is in Foil DXF; real planform area for a cranked or tapered wing comes out of Plane Spec rather than span × chord.