Manual Load sheet involve a calculation of Maximum Zero Fuel Weight (MZFW), Maximum Take Off Weight (MTOW) and Maximum Landing Weight (MLDW) whilst the center of gravity is located by marking the essential aircraft operating weight on a drop line which located on a center of gravity index scale which forms the horizontal line. If the position so found is within the areas shown as the permitted safe flight envelope, then operation as loaded is possible. Manual preparation of load and balance table used to be ordinary when Red Cap handle for Thai Smile Flight. It recalling the necessary method and challenging Red Cap