# Determining Loaded Weight and CG (Part Four) – Computations

Computations With a Negative Arm

Figure 9-10 is a sample of weight and balance computation using an airplane with a negative arm. It is important to remember that a positive times a negative equals a negative, and a negative would be subtracted from the total moments.

Figure 9-10. Sample weight and balance using a negative.

Computations With Zero Fuel Weight

Figure 9-11 is a sample of weight and balance computation using an aircraft with a zero fuel weight. In this example, the total weight of the aircraft less fuel is 4,240 pounds, which is under the zero fuel weight of 4,400 pounds. If the total weight of the aircraft without fuel had exceeded 4,400 pounds, passengers or cargo would have needed to be reduced to bring the weight at or below the max zero fuel weight.

Figure 9-11. Sample weight and balance using an aircraft with a published zero fuel weight.

Learn more about Aircraft Weight and Balance with the FAA Aircraft Weight and Balance Handbook. Weight and balance is one of the most important factors affecting safety of flight. An overweight aircraft, or one whose center of gravity is outside the allowable limits, is inefficient and dangerous to fly.

Comments on this entry are closed.

Previous post: