Seafarer's Question Answers

Posters on the bridge should be kept to minimum so that it will serve its purpose. Overload of posters on the bridge just tend to be ignored by officers giving them the wrong idea of information overload. You can start reviewing your bridge procedure manual and find what are the company standard posters that is required to be posted. Typically, it starts with posterized company bridge proced...

You say it is a chemical tanker and figures was obtained by draft survey? Actually, chemical tankers figures are obtained by proper cargo calculation using tank volume figures, cargo density and actual temperature with application of correction factors. Given the final figure have an apparent discrepancy of -20 at LP and -18 at DP the best approach for the Master is to present a letter of protest ...

COLREG did not explicitly say the number of nautical miles to be considered restricted visibility. As per COLREG definition, restricted visbility means any condition in which visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms or any other similar causes. Normally, company navigation procedures and Master's standing orders states info...

All lifeboats except free-fall lifeboats shall be provided with at least one drain valve fitted near the lowest point in the hull, which shall automatically open to drain water from the hull when the lifeboat is not waterborne and shall automatically close to prevent entry of water when the lifeboat is waterborne. Each drain valve shall be provided with a cap or plug to close the valve, which shal...

The terms "Good time" and "Ample time" in my opinion, are used within the COLREG's to allow officers and masters room to apply good seamanship. It would be very difficult to define a term to suit all vessel. For a large cargo ship the OOW of the give way vessel my choose to make an alteration at 12 miles to maintain a set minimum CPA required by the masters standing orders....

Objective of being a safety officer should be more than checking safety equipments and keeping  them constant state of readiness all the time.Safety officer is also responsible for training of crew regarding safety operations, situational awarenesses, personel safety etc.These task can be improved by helding safety meeting, before operation briefing and implementing ISM code on board with the...

Check chart for navigational hazards and dragging room, check you have not picked up a cable? Is the bottom rocky? If the prevailing conditions are not favourable then walk back anchor and wait for conditions to improve. If the anchor is still not coming. We are going to use the other winless, a mooring line/ wire rope and shackle to take the additional weight of the working windless. Firstly we...

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https://rules.dnvgl.com/docs/pdf/DNVGL/RU-SHIP/2018-01/DNVGL-RU-SHIP-Pt4Ch6.pdf Consideration should be given to page 127 for DNV guideline https://www.standard-club.com/media/24158/AMastersGuidetoShipsPiping2ndedition.pdf and page 39 for P&I clup guideline....

Volume of tank = 5040 m3 3 % of Volume = 151.2 m3 1)Observed Volume of cargo( @ 23 deg Cel ) = (5040 - (5040/100)*3) =4888.8 m3 2)Standard Volume ( @ 15 Deg Cel ) = 4888.8 x 0.9929 = 4854.0894 m3 3)Standard weight ( @ 15 Deg Cel in Vaccum) = 4854.0894 x0.81 =3931.8125 Tonnes ( in Vaccum) 4)Standard weight ( @ 15 Deg Cel in Air) =4854.0894 x0.8089= 3926.47291 Tonnes( in Air) REVERSE CALCULATI...

Trim and Stability booklet. You will find the Longitudinal area and not the transverse area however. Bare in mind that the generated figure tends to be based on a simple computer model and does not account for the appendages.  A practical way to get the areas is a simply by using pdf or a 3d model where you retrace area needed. This tends to be the most accurate way....

In RV condition Keeping Sight of the Person Overboard is very difficult. Activating MOB Mode in Mordern ECDIS will help to pin point the Inital Lat and Long But this will not take account of drifting away of person due current or wind. so we need some thing  which will transmit the real time position of person overboard. Simple and Effective way is Activate SART located on bridge and thro...

Normally for transporting IMDG cargos, ships must have Document of Complaince which will be issued by Flag State. https://navsregs.wordpress.com/2017/01/24/document-of-compliance-for-ships-carrying-dangerous-goods/ But for Class  6 and 7 dont need DOC. Since IMDG class 6.2 is Infectious subtance you must refer the Guidance on regulations for the transport of infectious substances 2017&nda...