If you stucked here, moving is the best idea to improve your performances
Good Day All..
Thanks for you all that has been accessed and comments given during the time.
In this good time, I am announced that www.surveyors.wordpress.com has just moved to the new address at www.sevensurveyor.com. Eventhough, you could access it form the both addresses.
Hope marine cargo surveyor could find this site more attractive and readable. Your contribution to improve this site is highly appreciated.
Regards,
Surveyors
February 14, 2012
Hi Raj,
This is very good questions. As long as I know, all ship should be checked by classification society before sea going.
No doubt, the shipyard has capability to make the table. As per standard, the class has authorization to identify and verify the correctness of table they made.
It is recommended to use the table that has approved by class.
In case you should use the unapproved table, please comparing your draft calculation with another approved weight systems such as; weighbridge, counterscale, etc.
Other issues. Today, it’s hard to find the blueprint of hydrostatic table onboard. It’s usually keep as the ship’s master archive.
Then surveyor only finds the fotocopy of the table. Should you believe in this fotocopy table?
As the vessel has berthed and surveyor should be work directly.
My personal clues:
– first try to request the original table, if not provide,
– ask for previous draft survey calculation at least 5 shipments,
– check the chief officer draft survey, usually they use the fix computer with software from shipyard that specially made for the vessel loading manual.
– if you found big discrepacy, just put comments or remarks on the worksheet.
– Issued letter of protest.
Please remind me if any miss. thanks.
Regards,
Surveyors
December 14, 2011
Dear Sir, Is it compulsory that the hydrostatic table should be certified by class surveyor or a stamp from shipyard is good enough?…Please advise
December 14, 2011
Dear Sir, Is it ok if hydrostatic table is only stamped by shipyard?…..Can we rely on the same table to finalyse our draft survey quantity?.
July 26, 2010
You are welcome Anass.
Regards,
Surveyors
July 21, 2010
Thanks man for these informations.
best regards
March 27, 2010
Dear Ashveer,
As my experience in bulk carrier, on the hydrostatic table (in evenkeel condition) the LCF is commonly (not absolute depends on the ship designed) moves from fore to aft part of the Midship. What I mean here is the LCF will be point at fore part in front of Midship when the vessel comes with empty (light draft) and then move to aft part behind of Midship when the vessel loaded with cargo (load draft). Where the fore LCF signed with minus and the aft LCF signed with plus.
I have ever found some ships with inverter the LCF sign, especially for ship built at China Shipyard. But they put the remarks how to calculate it on the manual calculation section of ship’s hydrostatic table. The result will be the same, see the formula uses : (-LCF x TT x TPC x 100) / LBP, the use -LCF not LCF.
It is recommended to check the calculation manual on hydrostatic table before calculating your draft survey, because every ship is different and unique.
Any of you have different opinion or experience, just put comments for Ashveer.
Regards,
Faisal
March 25, 2010
Dear Sir,
Can you please exploain LCF signs referering towhen isthe LCF positive and when is it negative. refering to ships hydrostatics how will i know if the signs are inverted on the ships tables.
thank you kindly
March 25, 2010
Dear sir.
I understand there is a formula to calculate a ships draught if 4 of the 6 draughtsareknow , considering the fullreadingfor either port or starboard and thereading for midships forthe opposite side.
i understand it is better to read the draught however timeisneverusually onthe sideofa surveyor and i wouldlike toknow if there is a formula
^
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