What should be verified post-alteration to the weight of an aircraft?

After any alteration to an aircraft, it is crucial to verify the current weight and balance. This is because any modifications, be it structural changes, addition or removal of equipment, or alterations to payload capacity, can significantly affect how the aircraft's weight is distributed. Correct weight and balance are essential for ensuring safe and stable aircraft operation. If the aircraft is not properly balanced, it could lead to control problems, increased stall speeds, or other performance issues that could compromise safety during flight.

In addition, weight impacts the aircraft's performance characteristics, including takeoff and landing distances, climb performance, and fuel efficiency. Therefore, confirming the current weight and balance ensures that the aircraft is within its operational limits as specified in the aircraft's manual or flight handbook. This validation is a critical step for maintaining airworthiness and ensuring that the aircraft behaves as expected in flight, contributing to overall safety.