The average loading coefficient of the 3 stage LP compressor is 0.319.The mass flow rate per front area is 191.0 kg/m2s.The average axial Mach number is 0.676.Efficiency is 0.82.Rotor inlet hub/tip radius ratio is less than 0.35.The surge margin is 20.67%.The engine thrust is increased by 14.3%.The engine has been experienced conventional ground test

high altitude testbed test and flight test.Extensive application shows that the layout option

gasdynamic design and structural design are very successful.