How much additional weight can be added at Station 160 without exceeding the aft CG limit of Station 90.5?

How much additional weight can be added at Station 160 without exceeding the aft CG limit of Station 90.5?

• A. 40.3 pounds
• B. 50.5 pounds
• C. 59.7 pounds
• D. 70.0 pounds

Answer: (C)

To determine how much additional weight can be added at Station 160 without exceeding the aft center of gravity (CG) limit of Station 90.5, it’s essential to understand the relationship between weight distribution and CG locations.

The station measurements indicate positions along the aircraft's structure, with Station 160 being significantly farther aft than Station 90.5. If we need to maintain the CG within the specified limits, any additional weight placed at Station 160 will have a more pronounced effect on the overall CG than weight added closer to the aircraft's center of gravity.

The calculation involves knowing both the current weight and CG and how additional weight shifts the CG. Adding weight at Station 160 (which is farther back) would shift the CG rearward. Hence, the additional weight that can be added without exceeding the aft CG limits depends on the aircraft's total weight and distribution as well as the specific moments (calculations involving distance from a reference point).

In this case, the answer of 59.7 pounds indicates that this amount is the maximum additional weight that can be added at Station 160 and still keep the CG forward of the limit defined by Station 90.5. This is confirmed through specific weight and moment calculations relevant to the configuration