With a total weight of 2,800 lb and CG at Station 120.0, can 100 pounds be shifted from Station 130.0 to Station 30.0 without exceeding the forward CG limit of Station 117.0?

• A. Yes; the new CG would be at Station 116.42.
• B. No; the new CG would exceed the limit.
• C. No; shifting is unnecessary.
• D. Yes; the new CG would be within limits.

Answer: (B)

To determine whether moving 100 pounds from Station 130.0 to Station 30.0 will keep the center of gravity (CG) within limits, we first need to calculate the new CG position after the weight shift.

The initial CG is located at Station 120.0 with a total weight of 2,800 lb. When we consider the weight shift:

1. Calculate the moment of the current weight distribution:

• Total moment = Weight x CG Position = 2,800 lb x 120.0 = 336,000 lb-in.

2. When 100 pounds is moved from Station 130.0 to Station 30.0, we need to consider the moments involved:

• The moment contribution of the weight being removed at Station 130.0 is:

100 lb x 130.0 = 13,000 lb-in.

• The moment contribution of the weight being added at Station 30.0 is:

100 lb x 30.0 = 3,000 lb-in.

3. To find the new CG, we adjust the total weight and total moment:

• New total weight = 2,800 lb (original weight) - 100 lb +