During a rearward weight and balance check, the items of useful load that should be computed at minimum weights are those located forward of what boundary?

During a rearward weight and balance check, the items of useful load that should be computed at minimum weights are those located forward of what boundary?

• A. the rearward CG limit
• B. the forward CG limit
• C. the datum line
• D. the main gear center

Answer: (A)

When checking weight and balance in a rearward scenario, you focus on how far aft the center of gravity could move. The boundary that matters is the rearward CG limit, because payload that sits forward of that limit can, if at its minimum weight, pull the CG farther aft. Minimizing forward-loaded weights reduces forward moment and can push the CG toward the rear, potentially beyond the aft limit. So those forward-of-boundary items must be evaluated at minimum weights to test the worst-case aft CG. The datum line is just the reference for moments and isn’t a boundary for this purpose, and the main gear center isn’t a CG boundary.

When checking weight and balance in a rearward scenario, you focus on how far aft the center of gravity could move. The boundary that matters is the rearward CG limit, because payload that sits forward of that limit can, if at its minimum weight, pull the CG farther aft. Minimizing forward-loaded weights reduces forward moment and can push the CG toward the rear, potentially beyond the aft limit. So those forward-of-boundary items must be evaluated at minimum weights to test the worst-case aft CG.

The datum line is just the reference for moments and isn’t a boundary for this purpose, and the main gear center isn’t a CG boundary.