According to one embodiment of the disclosure, a method of determining a center of gravity of an aircraft includes receiving a strut length for each of the gears of an aircraft, determining an arm length for each of the gears, and determining a center of gravity of the aircraft based on a relationship between the center of gravity and respective arm lengths for each of the gears. The arm length of each of the gears is determined according to the strut length of a gear strut of a respective gear and a relationship between the strut length of the gear strut to another gear of another aircraft and the arm length of the respective gear.