Standard weights are weights established for numerous items involved in weight and balance computations.

• A. Weights established for all aircraft mass and balance.
• B. Weights established for numerous items involved in weight and balance computations.
• C. Weights used only for fuel calculations.
• D. Weights identical across all aircraft.

Answer: (B)

Standard weights are fixed, average weights assigned to items that appear in weight-and-balance calculations but that can’t be weighed individually. They cover many common components such as passengers, baggage, crew, and cargo, and sometimes fuel, depending on the method used. Using these average values lets you quickly estimate the aircraft’s total weight and center of gravity without weighing every person or item, while still keeping calculations reasonably accurate and within safe limits. They aren’t identical for every aircraft or situation, and they aren’t limited to fuel alone. This makes the description “weights established for numerous items involved in weight and balance computations” the best fit.