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diff --git a/Flight_Eqns/Wind_Axis_eqns/Wind6DOFVer.mo b/Flight_Eqns/Wind_Axis_eqns/Wind6DOFVer.mo
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+model Wind6DOFVer
+ 
+import Modelica.Math.Matrices.*;
+import SI=Modelica.SIunits;
+import Modelica.Blocks.Interfaces.*;
+
+parameter Real rho = 1.225;
+parameter Real g = 9.81;
+parameter Real m = 1043.26;//1.56 for zagi
+parameter Real S_ref = 16.1651;//reference area
+parameter Real C_bar = 1.493 ;//average chord
+parameter Real b = 10.911 ;//span
+//parameter Real b= 1.4224, cbar = 0.3302,s = 0.2589;
+
+
+
+parameter Real CD0    = 0.036;//= 0.01631;for Zagi
+parameter Real K_drag  = 0.0830304;//for cessna
+parameter Real CD_beta = 0.17;//for cessna
+parameter Real CD_alpha= 0.2108;
+parameter Real CD_q = 0;
+parameter Real CD_delta_e= 0.3045;
+
+//side force
+parameter Real Cy_beta  = -0.31;//for cessna
+parameter Real Cy_p  = -0.037;//for cessna
+parameter Real Cy_r   = 0.21;//for cessna
+parameter Real Cy_delta_r = 0.187; //for cessna
+parameter Real Cy_delta_a= 0;     //for cessna
+
+// lift
+parameter Real CL0 = 0.25;   //for cessna
+parameter Real CL_alpha = 4.47;//for cessna
+parameter Real CL_q = 3.9;//for cessna
+parameter Real CL_delta_e = 0.3476;//for cessna
+
+// rolling moment
+parameter Real Cl_beta = -0.089;//for cessna
+parameter Real Cl_p = -0.47;//for cessna
+parameter Real Cl_r = 0.096;//for cessna
+parameter Real Cl_delta_a= -0.09;//for cessna
+parameter Real Cl_delta_r = 0.0147;//for cessna
+
+// pitching moment
+parameter Real Cm0 = -0.02;//for cessna
+parameter Real Cm_alpha = -1.8;//for cessna
+parameter Real Cm_q   = -12.4;//for cessna
+parameter Real Cm_delta_e = -1.28;//for cessna
+
+// yawing moment
+parameter Real Cn_beta = 0.065;//for cessna
+parameter Real Cn_p  = -0.03;//for cessna
+parameter Real Cn_r = -0.99;//for cessna
+parameter Real Cn_delta_a = -0.0053;//for cessna
+parameter Real Cn_delta_r = -0.0657;//for cessna
+
+
+//Initial conditions. (deltaE, thrust[1] and the others are straightforward)
+
+parameter Real[3,3] J = {{1285.31, 0.0, 0.0}, {0.0, 1824.93, 0.0}, {0.0, 0.0, 2666.893}};
+
+Real CL;
+Real CD;
+Real CY;
+Real Cl;
+Real Cm;
+Real Cn;
+Real CX;
+Real CZ;
+//Params
+parameter Real deltaE = -0.15625;
+parameter Real deltaR = 0;
+
+parameter Real deltaA = 0;
+
+
+
+
+parameter  Real thrust = 1112.82;
+
+//12 states
+Real p (start = 0);
+Real q (start = 0);
+Real r (start = 0);
+
+Real OMEGA[3,3] = skew({p,q,r});//Skew symmetric matrix form of the angular velocity term
+
+
+Real V (start =39.8858);
+Real alpha (start =0.1);
+Real beta (start = 0);
+
+
+Real x (start = 0);
+Real y (start = 0);
+Real z (start = 100);
+
+Real mu (start = 0); 
+Real gamma (start = 0);
+Real chi (start = 0); 
+
+Real qbar = 0.5*rho*V^2;
+Real [3] Moment;
+
+
+
+Real Vdot;
+Real alphadot;
+Real betadot;
+
+Real[3] omegadot;
+
+Real mudot;
+Real gammadot;
+Real chidot;
+
+Real xdot;
+Real ydot;
+Real zdot;
+
+
+equation
+CL = CL0+CL_alpha*alpha+((CL_q*q*C_bar)/(2*V))+CL_delta_e*deltaE;
+//CD =  CD0+CD_alpha*alpha+((CD_q*q*C_bar)/(2*V))+CD_delta_e*abs(deltaE)  ;
+CD = CD0 + K_drag*CL^2;
+CY = Cy_beta * beta + Cy_p * (p*b)/(2*V) + Cy_r *(r*b)/(2*V) + Cy_delta_a * deltaA + Cy_delta_r*deltaR;//Sideslip coeff
+
+
+Cl = Cl_beta * beta + Cl_p*(p*b)/(2*V) + Cl_r *(r*b)/(2*V) + Cl_delta_a * deltaA + Cl_delta_r * deltaR;//Rolling coeff
+
+Cm  = Cm0+Cm_alpha*alpha+((Cm_q*q*C_bar)/(2*V))+Cm_delta_e*deltaE;//pitching coeff
+
+Cn = Cn_beta * beta + Cn_p * (p*b)/(2*V) + Cn_r *(r*b) /(2*V) + Cn_delta_a * deltaA + Cn_delta_r * deltaR;//Yawing coeff
+
+CX = -CD*cos(alpha) + CL*sin(alpha);
+CZ = -CD*sin(alpha) - CL*cos(alpha);
+
+Moment[2] = Cm*qbar*S_ref*C_bar;
+Moment[1] = Cl*qbar*S_ref*b;
+Moment[3] = Cn*qbar*S_ref*b;
+
+Vdot = der(V);
+alphadot = der(alpha);
+betadot = der(beta);
+
+omegadot[1] = der(p);
+omegadot[2] = der(q);
+omegadot[3] = der(r);
+
+xdot = der(x);
+ydot = der(y);
+zdot = der(z);
+
+mudot = der(mu);
+gammadot = der(gamma);
+chidot = der(chi);
+
+
+
+
+Vdot = 1/m*(thrust*cos(alpha)*cos(beta)-0.5*rho*V^2*S_ref*(CD*cos(beta)-CY*sin(beta))-m*g*sin(gamma));
+
+alphadot = q-1/cos(beta)*((p*cos(alpha)+r*sin(alpha))*sin(beta)-g/V*cos(gamma)*cos(mu)+(0.5*rho*V^2*S_ref*CL+thrust*sin(alpha))/(m*V));
+
+betadot = (p*sin(alpha)-r*cos(alpha))+1/(m*V)*(-thrust*cos(alpha)*sin(beta)+0.5*rho*V^2*S_ref*(CY*cos(beta)+CD*sin(beta))+m*g*cos(gamma)*sin(mu));
+
+
+omegadot = inv(J) * (Moment- OMEGA* J*{p,q,r});
+
+
+
+xdot=V*cos(gamma)*cos(chi);
+ydot=V*cos(gamma)*sin(chi);
+zdot=-V*sin(gamma);
+
+mudot = p+tan(gamma)*sin(mu)*q+tan(gamma)*cos(mu)*r;
+gammadot = cos(mu)*q-sin(mu)*r;
+chidot=(1/cos(gamma))*sin(mu)*q+(1/cos(gamma))*cos(mu)*r;
+
+
+annotation(experiment(StartTime = 0, StopTime = 500, Interval = 0.002),    uses(Modelica(version = "3.2.2")));
+end Wind6DOFVer;
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