How much non-liquid deck load can the DEEP DRILLER, loaded as shown in the sample Load Form #4 (Drilling), accept if the weight is placed at a VCG of 130 feet? Ballast added or discharged to maintain draft at 60 feet is done so at 10 feet.

Correct Answer: Option B — 457.5 long tons

Evaluating stability and deadweight capacity using Sample Load Form #4 requires balancing added vertical and transverse moments. Adding non-liquid deck load at 130 feet VCG while compensating with ballast at 10 feet to maintain a 60-foot draft permits a maximum intake of 457.5 long tons.