How is the empty weight of an aircraft determined?

How is the empty weight of an aircraft determined?

• A. Subtract tare weight from the scale reading and add the weight of each weighing point.
• B. Add tare weight to the scale reading and subtract the weight of each weighing point.
• C. Take the airplane's basic empty weight from the manifest.
• D. Weigh only the airframe with no equipment.

Answer: (A)

Determining the empty weight comes from a direct measurement with calibrated scales at the designated weighing points. You place the aircraft on the scales, read each scale, and then correct for the scale itself. Subtract the tare from each scale reading to remove the weight of the scale platform. After you’ve corrected all the readings, add the net weights from all weighing points to obtain the aircraft’s empty weight. This method ensures you’re measuring the airplane itself (including fixed equipment) rather than the scales or any other carried mass. Relying on a manifest value isn’t a verified measurement, weighing only the airframe omits fixed equipment and standard items included in the empty weight, and misapplying tare would not yield the true weight.

Determining the empty weight comes from a direct measurement with calibrated scales at the designated weighing points. You place the aircraft on the scales, read each scale, and then correct for the scale itself. Subtract the tare from each scale reading to remove the weight of the scale platform. After you’ve corrected all the readings, add the net weights from all weighing points to obtain the aircraft’s empty weight. This method ensures you’re measuring the airplane itself (including fixed equipment) rather than the scales or any other carried mass. Relying on a manifest value isn’t a verified measurement, weighing only the airframe omits fixed equipment and standard items included in the empty weight, and misapplying tare would not yield the true weight.