//for the cessna skylane(CP-1): W=11494.35;//fuel empty weight(N) W1=3916//total weight(N) including pilot seat etc Wf=1633.15;//weight(N) of fuel Wo=W+Wf-W1 //gross weight of UAV b=10.912;//wingspan(meter) S=16.16;//wingarea(m^2) AR=b^2/S//aspect ratio D=1.225;//density at sea level(Kg/m^3) Cdo=0.025;//parasite drag coefficient e=0.8;//oswald efficiency factor Pa=0.8*230*746 //maximum power available(J/s) from example 6.4 //from example 6.12: n=0.8; c=7.45*10^-7;