Deck General · Trim (TPI, MT1)
A 50-ton weight is added 40 feet aft of the center of flotation. MT1 = 500 foot-tons/inch. What is the change in trim?
- A4 inches by the stern✓ Correct
- B10 inches by the stern
- C4 inches by the head
- D0.25 inches by the stern
Explanation
Trimming moment = 50 x 40 = 2,000 foot-tons. Change in trim = 2,000 / 500 = 4 inches. Because the weight is added aft of LCF, the stern sinks and trim is by the stern.
Authority: Stability & Trim (USCG deck topic)
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