Stability – I : Chapter 7

August 14, 2016

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A heavy-lift derrick is used to discharge a 100t package from a ship of displacement 8000t kg 8.2m . If the KG of the weight while on board is 3m and if the derrick head is 25m above the keel , find the kg of the ship (a) while discharging and( b ) after discharging

Solution :

CASE 1

Ship’s weight	KG	VM
8000t	8.2m	65600tm
100t ( while disch)	(25 -3m)	(+)2200tm

Final W = 8000t Final VM = 67800t

We know that:-

Final KG = (Final VM) / (Final W)
Final KG = ( 67800/8000)
= 8.475m

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Amit Sharma

Graduated from M.E.R.I. Mumbai (Mumbai University), After a brief sailing founded this website with the idea to bring the maritime education online which must be free and available for all at all times and to find basic solutions that are of extreme importance to a seafarer by our innovative ideas.

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1 Comment

Abdul says:

April 8, 2021 at 12:18 pm

Q.6 is wrong ,wrong kg taken for x

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