default to small NeuralFoil model size (comparable to "medium" from N…

…F 0.1.x in accuracy)

aerosandbox/aerodynamics/aero_3D/aero_buildup.py

@@ -53,7 +53,7 @@ def __init__(self,
                  airplane: Airplane,
                  op_point: OperatingPoint,
                  xyz_ref: Union[np.ndarray, List[float]] = None,
-                 model_size: str = "medium",
+                 model_size: str = "small",
                  include_wave_drag: bool = True,
                  ):
         """