Study on change of aircraft center of gravity during fuel consumption

In this paper, the law of change of aircraft center of gravity (CG) during fuel consumption is studied. The change of aircraft CG is discussed based on three different structures, such as single tank system, dual-symmetrical tank system and dual-asymmetrical tank system. Based on dual-symmetrical tank system, two fuel consumption modes are considered including the same consumption rate and different consumption rate on both tanks. The curves of change of aircraft CG on different conditions are obtained. The character and trend of change of CG is analyzed.