% [Cy_da]=Cn_da()
%
%  Cy_da - Variation of Side Force Coefficient with  
%           Aileron Deflection 
%
%	[Ref.2]	Jan Roskam
%		Methods for Estimating
%		Stability and Control Derivatives
%		of Conventional Subsonic Airplanes  -  1977
%

function [Cy_da]=Cy_da(S_w)

Cy_da = 0;

return

