//pressure units are converted from bar to N/m^2
Hp=1524 ;//pressure altitude
P=0.8432*10^5 //From the standard atmosphere Table at 1524 meter,N/m^2
Po=0.87*10^5 ;//total pressure in N/m^2
R=287 ;//gas constant for air,J/Kg.K
T=280.56 ;//outside temperature,Kelvin
D=P/(R*T) //density,Kg/m^3
Ds=1.226 ;//standard sea level density,Kg/m^3