Your vessel's draft is 24'-06" forward and aft. The MT1 of your vessel is 1000 ft-tons. How many tons of cargo must be loaded in number 4 hold, which is 100 feet abaft the tipping center, if she is to have a 2 foot drag? (Note: drag = trim by stern), (tipping center = LCF)
A. 120 tons
B. 240 tons
C. 300 tons
D. 480 tons
A. 120 tons
B. 240 tons
C. 300 tons
D. 480 tons
Change of trim = (weight x distance from LCF)/MT1
ReplyDeleteSolve for weight = (Change of trim x MT1)/(distance from LCF)
The trick is to use the proper units.
MT1 is in Ft-tons/inch
Distance from LCF is in feet
Change of trim is in inches!
So, weight =
(24 inches)x(1000 Ft-tons/inch)/ (100 ft)
= 240 tons
The best answer is B.