Hello, I'd like to add a control surface to my model, but the dimensions are wrong, as it spans from UStart = 0.4 to UEnd 0.6. I guess i have to turn on a flag for Eta, but i don''t know how. Thank you for the help.
wing_id = vsp.AddGeom("WING")
cs_id = vsp.AddSubSurf(wing_id, vsp.SS_CONTROL)
vsp.SetParmVal(wing_id, "EtaStart", "SS_Control_1", 0.1)
vsp.SetParmVal(wing_id, "EtaEnd", "SS_Control_1", 0.4)
vsp.SetParmVal(wing_id, "Length_C_Start", "SS_Control_1", 0.2)
vsp.AutoGroupVSPAEROControlSurfaces()
vsp.Update
vsp.WriteFile("CS_wing.vsp3")