Seafarer's Question Answers

Q: "What is the meaning of 'Inherent stability problem for the ship'?" A: Any factor or capacity which causes the vessel to be "out of trim", contributing to a sustained center-of-gravity displacement for the ideal/design (adversely affecting the righting-moment). These factors/capacities can include, but is not limited to: - Fuel and Ballast tank sizes and inter...

There was a vessel detention by AMSA recently becoz the cooling water for the RB engine was not functional. The vessel's critical list showed it carried a spare part for the cooling water parts, but was not traced on board.  Obligation to carry spare parts for critical equipments onboard is mentioned in the company SMS. It is upto the vessel's staff to identify which equipments are c...

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...

Name of the ship ( port and Stbd bow and Transom) IMO number and Port of Registry at Transom Boundary of Bunker oil tanks marked on the hull ( no pushing allowed in these area) LOAD LINES both sides Draft marks FWD AFT MIDSHIP - Both sides TUG Pushing Area - Clearly masked as TUG Bulbous bow mark Location of cargo manifold ,bunker manifold, vapour manifold and name of manifold ( DO, FO, NO ...

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...

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...