Based on the weight and balance data provided, what is the empty weight center of gravity (EWCG) of the aircraft?

Based on the weight and balance data provided, what is the empty weight center of gravity (EWCG) of the aircraft?

• A. 50.31 inches
• B. 60.00 inches
• C. 61.12 inches
• D. 60.31 inches

Answer: (D)

The empty weight center of gravity is the CG position of the airplane when it is empty, before any fuel or payload are added. You find it by taking the empty weight moment and dividing it by the empty weight: CG_e = M_e / W_e. The result is the distance from the datum to the airplane’s CG when empty, usually given directly in inches on the weight and balance data. In this data set, the empty weight and its moment yield a CG of 60.31 inches, so the EWCG is 60.31 inches. This baseline position is used to determine how loading (fuel and passengers/payload) shifts the CG and whether the aircraft remains within the allowable envelope. If the moment or weight were different, the calculated CG would change accordingly; the other nearby numbers would only fit if the corresponding EW or moment values were different.

The empty weight center of gravity is the CG position of the airplane when it is empty, before any fuel or payload are added. You find it by taking the empty weight moment and dividing it by the empty weight: CG_e = M_e / W_e. The result is the distance from the datum to the airplane’s CG when empty, usually given directly in inches on the weight and balance data.

In this data set, the empty weight and its moment yield a CG of 60.31 inches, so the EWCG is 60.31 inches. This baseline position is used to determine how loading (fuel and passengers/payload) shifts the CG and whether the aircraft remains within the allowable envelope. If the moment or weight were different, the calculated CG would change accordingly; the other nearby numbers would only fit if the corresponding EW or moment values were different.