Author: Faisal Yusuf

Hi, my name is Faisal Yusuf, but you can call me Surveyor. I live in Jakarta, Indonesia and work as a surveyor.

Don’t Even Think To Read This Post

finger-man

It’s maddening when people do the opposite of what we tell them to do. Remind your boss to look at a report, and he puts it off longer. Discourage a friend from taking a job, and she accepts it. Nudge a colleague to drink less, and she pours herself another drink. Tell a child not to touch a hot stove, and he immediately reaches for it.

And you’re reading this post, even though the headline demanded the exact opposite. What were you thinking?

The psychology of reverse psychology boils down to three key principles. If you’re not careful, all three can become sources of bias or weapons of influence.
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Bunkering Tricks

tape-measure
Even though the procedure has been tightened, we may see some bunker tanker are still trying to play their tricks, therefore it is very important for Chief Engineer, Vessel’s Crew and Surveyor to know well their tricks.

Below are the Tricks of Bunker Supply, trust that most of our Chief Engineers might known the trick very well, or even know more other tricks. Hopefully by knowing these tricks we can do some prevention, counteract or countermeasure to protect our interest:

1. Manipulating the sounding result
It is very easy for the bunker barge operator to manipulate the sounding result.

Counteract/Countermeasure: Chief Engineer or bunker surveyor appointed should sound the bunker barge tanks himself
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Negative Constant in Draft Survey

What is Ship Constant?

The ships constant is the difference between a vessels design lightship and it’s actual displacement when empty. The ships constant is determined by a draft survey. The ships constant will vary over the life of the vessel.

calculator
Unintentional Reasons for Variations
– Sedimentation in ballast or fuel oil tanks
– Corrosion
– Fouling of hull
– Coating build-up (paintwork, tank coatings, etc.)
– Garbage collection, particularly in cargo holds
– Wear and tear of mechanical devices

Other Reasons for Variations
– Modifications to ship spaces
– Accumulation of stores (i.e., in paint locker, engineering stores, spares)
– Refit, overhauls, addition/removal of equipment.
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Inverse Draft Survey

contact
Few years ago, I have received the email from friend that asked regarding Inverse Draft Survey. The Inverse Draft Survey is doing when the ship has to split the cargo for two or more ports. The method is the same as common draft survey calculation, what the ship officer or surveyor needs to do is preventing cargo less or more discharge at the 1st port.

What is the purpose?
– To prevent cargo less or more discharge at one port.
– Surveyor can organize the work effectively.
– To prevent repetition of intermediate draft survey that cost a lot of time.
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Improving Accuracy of Draft Survey

SAM_2919

Previously has posted about the accuracy and factors effecting draft survey, check this link if you need. Now, the post below will relate to the way for improving accuracy of Draft Survey.

In draught survey operation several parties are involved and it is to advantage of each party to join the efforts to increase the accuracy. The parties involved are The buyers, the sellers, the charterers, the terminals and vessel’s staff.

Assuming that buyers, sellers and charterers are equally concerned about the correct weight of cargo, also the master (respectively chief officer to whom the responsibility of cargo weight is delegated) shortages and discrepancy may be a problem.
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IIMS 2014 Conference

marine-surveying
The International Institute of Marine Surveying is proud to announce its 2014 Conference and AGM

Presenting ‘New Energies in Marine Surveying’

Date: 09 June 2014 (2 Days)
Location: Hilton Hotel, Chilworth, Southampton, UK

Description:
The 2014 Conference (including Dinner and AGM) will be held on the 9th and 10th June 2014 at the Hilton Hotel, Chilworth, Southampton. The Conference theme will be “New Energies in Marine Surveying”.

Click here to view the Brochure PDF or visit the website http://www.iims.org.uk for more info.

The event will coincide with the SeaWork Exhibition in Southampton running from the 10th – 12th June.

Tank Sounding Basic

tank_soundingIn this post, I would like to write about how to do tank sounding for ballast water and fuel oil.

Sounding Tools:
– Sounding Tape, in meter or feet. For Manual measurement of sounding, a measuring tape normally made up of brass and steel with a weighted bob attached at the end of the tape is used.
marine_surveyor_ sounding_tape
– Water Finder and Oil Finder Pastes. Sounding pastes are also available for both water and gas oil which highlights the level of fluid in tape.
marine_surveyor_sounding_paste

Sounding Tanks Step of Works:
– Check the sounding tape and partly lowered on to the sounding pipe.
– Layered the suspected sounding depth with Water Finder Paste (if you check the ballast)
– Layered the suspected sounding depth with Oil Finder Paste (if you check the oil)
– Continued to lowered the tape until the sounding tape bob touching the bottom tank (datum plate).
– Roll up the sounding tape.
– Check the height of water / oil level that signed on the tape or  the finder paste  changes the color  to become red.
– Recorded the sounding.
– Check the trim and list of the ship for volume calculation.
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