content_image/603339.jpg content_image/603340.jpg
## Determining Total Weight of an Aircraft With a Specified ΔCG When Cargo Is Move 

What is the total weight of an airplane if moving 500 pounds of cargo 96 inches forward shifts the CG 2.0 inches? 

Use this formula: 

<img src='content_image/603339.jpg'>

Moving 500 pounds of cargo 96 inches forward causes a 2.0-inch shift in CG of a 24,000-pound airplane. 

## Determining Amount of Ballast Needed to Move CG to a Desired Location 

How much ballast must be mounted at station 228 to move the CG to its forward limit of +33? The airplane weighs 1,876 pounds and the CG is at +32.2, a distance of 0.8 inch out of limit. 

Use this formula: 

<img src='content_image/603340.jpg'>

Attaching 7.7 pounds of ballast to the bulkhead at station 228 moves the CG to +33.0. 

