Which practice helps in accurate weight management during flight planning?

Using weight and balance reports is fundamental for accurate weight management during flight planning because these reports provide detailed and precise information about the aircraft's weight distribution and center of gravity. They calculate the total weight by accounting for all items on board, including passengers, cargo, and fuel, and ensure that the aircraft remains within its operational limits. By relying on actual measurements instead of estimations or fixed weights, pilots and flight planners can maintain safe and efficient flight operations. Accurate weight data helps prevent issues such as being over the maximum takeoff weight or having an improperly balanced aircraft, both of which can significantly affect performance and safety.

Meanwhile, estimating weight, neglecting seasonal cargo weight changes, and assigning fixed weights to all cargo can lead to inaccuracies. These practices do not provide the detailed insight necessary for ensuring that the aircraft’s weight and balance parameters are within the required limits.