Plain English Meaning
A way of figuring out how the airplane's total weight and balance point change when you put something on board or take something off. You work out how heavy the item is, where it sits in the aircraft, and then recalculate the new totals.
Full Definition
A weight-and-balance calculation method used to determine the new gross weight and new center of gravity (CG) location after items are added to or taken from an aircraft. The procedure multiplies the added or removed weight by its arm (distance from the reference datum) to produce a moment, then combines that moment with the original aircraft moment to find the new CG.
Context Anchor
Seen in aircraft weight-and- records, , equipment changes, and after an aircraft has been modified.