Question and Answers

    marinetales October 29, 2020
    Yes it can be loaded below decks. For above deck it shall be done in accordance with the provisions of the Timber Code
    marinetales October 29, 2020
    No Armed Robbery is covered in SUA ( suppression of unlawful activities) Convention. This convention relates to suppression of unlawful acts against the safety of maritime navigation
    marinetales May 17, 2021
    A Panting beam is fitted athwartship in the bow or stern of the vessel to prevent panting of the sides.
    marinetales May 22, 2021
    Extensively employed in salvage operations to hold a vessel’s position on station. Ships anchors with lengthy cable can be used for this purpose but generally, additional anchors and cables are brought in, specifically for this task.
    marinetales May 18, 2021
    During the registration process of a ship, As per the Merchant Shipping Act, when the official number has been allotted to the ship, name of the ship has been approved and certificate of survey has been granted by the surveyor, the registrar issues a CARVING AND MARKING NOTE to the owner. This Carving and Marking note has to be returned to the Registrar once the Carving and Marking has been completed to the satisfaction of the surveyor.
    marinetales April 6, 2021
    Gross tonnage Gross Tonnage is a measure of the ships total interior volume and is calculated by multiplying the interior volume “V” of the ship in cubic meters by a variable known as “K” (which varies depending on the ships overall volume). Gross Tonnage is not to be confused with Gross Registered Tonnage which is explained below. Net tonnage Net Tonnage is a measure of the total interior volume of a ship’s cargo spaces and is calculated in much the same way. The total volume of designated cargo spaces in cubic meters is then multiplied by varied number of factors resulting in an official net tonnage value.
    marinetales April 21, 2021
    Following factors are taken into account while choosing an anchor position - 1. Distance off from other vessels 2. Distance off from nearest danger 3. Nature of holding ground 4. Own vessel size 5. Duration of stay at Anchorage 6. Weather forecast 7. In Case own vessel has to undergo repairs at anchorage ( immobilisation) 8. Presence of underwater obstructions 9. Any other factor which affects the safety of vessel directly or indirectly
    marinetales May 19, 2021
    Following shall be carried out prior entering HRA - 1. Refer to BMP5 publication 2. Carry out vessel hardening arrangements (such as rigging Razor Wires, dummies, fire hoses etc) 3. Carry out Risk Assessment 4. Prepare the Citadel 5. Try out SSAS and emergency satellite communication with CSO 6. Carry out Ship Security Drill
    marinetales May 18, 2021
    One of a pair of steel reinforcing plates bolted or welded to the sides of a beam or bulkhead joint is called a fish plate.
    marinetales October 29, 2020
    Asking this question is beyond the scope of PSCO duties and responsibilities if at all, family members /supernumeraries presence is NOT affecting the safety of the vessel. An eg of such situation is when the presence of family members results in total crew Members exceeding the lifeboat capacity of the vessel. S long the safety and security is not compromised the PSCO doesn’t interfere in this matter
    marinetales May 19, 2021
    The aspect of a vessel is the relative bearing of own vessel from the target vessel. It can be calculated as the difference between the true bearing and the relative bearing.
    marinetales October 29, 2020
    1.Master to ensure that the Designated officers are competent to operate the equipment 2. The required training shall be demonstrated by the officers during every drill 3. Ensure that the testing of GMDSS equipment shall always be undertaken by the designated officers 4. Ensure that details of INM-C, MF-HF equipment, Epirb etc are updated in case there is change in data of such vessel. 5. Ensure that EPIRB is properly stowed and not activated falsely 6. If false distress is transmitted such distress alert shall be cancelled using the appropriate procedures and all officers shall be aware of same
    marinetales October 26, 2020
    The WNA mark ( Winter North Atlantic mark) is required by the ships lesser than 100 mtrs in length trading in North Atlantic Ocean during the Winter Season. During the first conference on the Loadline convention it was generally agreed that the freeboard of small ships should be especially examined with a view to some increase being made ( in freeboard) . Statistics of ship losses had highlighted the safety problems associated with vessels under 300 ft long and some action was necessary. It was recognized that it was difficult for ships lesser than 100 mtrs ( 328 feet) to provide for an even Compartment subdivision and the deck integrity for these ships should be paramount. North Atlantic Ocean during winter season is primarily Rough and therefore the vessel shall be loaded to a loadline which is even lesser than the Winter mark ( so as to give sufficient freeboard allowance for the size of the ship lesser than 100 mtrs). This was primarily done for safety reasons.
    seawizard June 3, 2021
    A Great Circle Course is drawn first on a Gnomonic Chart. This GC course is a straight line on the Gnomonic chart because of the Projection of the chart. Thereafter you need to transfer this course on to the Mercator Chart which results in plotted course appearing as a curved route. How to transfer the GC route to the Mercator Chart? It needs to be decided by the Master as after how many degrees of longitude would he require to alter the course of the vessel. Also, he needs to decide what is the maximum latitude he wants to reach and limit his route. Basically, he does not want to go higher than a certain latitude to avoid bad weather, ice limits etc This highest latitude is called the vertex of the GC course. So after these two things are decided, we can start transferring the waypoints from the gnomonic chart to mercator chart. Let us assume that Master decides the course alteration interval to be carried out every 5 degrees of longitude. So, first pick up the way points from the Gnomonic chart and not down the latitude and position where the GC Route drawn on Gnomonic chart crosses longitudes at every 5 degree interval. For example, if you have noted down the latitude at 030 - 00W then note the latitude passing through 025-00W longitude on your course. Similarly, the next will be latitude passing through the 020-00W. So the interval remains constant at 5 degress of longitude. Now as we know the limiting latitude of the course. You shall ensure that the route does not go beyond that latitude. After noting down these way points plot these waypoints on the mercator chart and you will observe that the Course drawn appears to be curved. The Advantages of GC Route is - 1. Saving of distance, 2. Saving of time 3. Saving of fuel Disadvantages of GC Course 1. Takes you to higher latitudes which may result in encountering heavy weather resulting in drop in speed 2. Practically, no course is a pure GC Course. Mostly a combination of Rhumb Line course and GC Course is used for transatlantic voyages. Hence, the distance saving is slightly less than anticipated.
    marinetales October 27, 2020
    Each position circle found using the Sextant Altitude is of immense radius. Therefore, any short length of the arc of some circle can be considered as an straight line . Comparing the observed distance to the celestial body the calculated distance using an estimated position provides the distance towards, or away from the body.. The observed distance is known as the True Zenith Distance (TZD.) The value based on the assumed position is the Calculated Zenith Distance (CZD.) The difference between the two is known as the Intercept. The closest point on this circle is known as the Intercept Terminal Position (ITP) and the line representing the circle at that position is called a Position Line.
    marinetales May 24, 2021
    GDOP (geometric dilution of precision) or PDOP (position dilution of precision) describes the error caused by the relative position of the GPS satellites. In simple terms, the value of GDOP defines the accuracy of GPS position. If the satellites are CLOSER you will have a HIGHER GDOP and LESS ACCURATE POSITION if the satellites are FAR APART you will have LOWER GDOP and MORE ACCURATE POSITION HDOP (Horizontal Dilution of Precision) is a part of GDOP and concerns with the horizontal distance between the satellites
    marinetales October 27, 2020
    Dipper is used to take out drinking water from the container.... it is graduated so that water quantity can be measured. It is provided with a lanyard so that the water can be taken out from the container without spilling over since once in distress situation you need to save every drop of water!
    marinetales October 28, 2020
    Resolution A.962(23) IMO Guidelines on ship recycling was adopted on 5th Dec 2003. The guidelines note that, in the process of recycling ships, virtually nothing goes to waste. The concept of a "Green Passport" for ships is included in the guidelines. This document, containing an inventory of all materials potentially hazardous to human health or the environment, used in the construction of a ship, would accompany the ship throughout its working life. Successive owners of the ship would maintain the accuracy of the Green Passport and incorporate into it all relevant design and equipment changes, with the final owner delivering it, with the vessel, to the recycling yard. However, the "Green Passport/IHM" legislation is a dynamic set of rules; and changes are still being made. In may 2009 the "International Convention for the Safe and Environmentally Sound Recycling of Ships" (the Hong Kong Convention) replaced the Resolution A.962(23).
    marinetales May 19, 2021
    The hunting gear mechanism in the steering gear system is a feed back mechanism, which transmits the position of the rudder to the pump control lever, through the floating lever.
    marinetales May 19, 2021
    In Head-Up display, the 12 o'clock position on the PPI represents own ship's course and hence the heading shows zero on the graduated scale around the PPI. All bearings taken on this display will be relative to the heading. The right side of the heading marker on PPI is the Starboard side of the ship and the left side of the heading marker is the Port side of the ship. If Radar is used in Headup mode while altering the course the Heading marker remains at the same position and the targets start moving on the screen, due to this the picture gets smudged. Picture smudges in azimuth during alterations of course. Because of smudging, accurate bearings cannot be taken during large course alterations Plotting becomes highly inaccurate during yaw in bad weather, as ship's head keeps changing several degrees per second, resulting in severe smudging.
    marinetales May 18, 2021
    Close quarter is a situation between two vessels when action taken by one vessel may not be sufficient to avoid the collision. In rivers, harbours, and other inland waterways; close-quarters situations are unavoidable.
    marinetales May 9, 2021
    There are two stabilisation modes on Radar – ground and sea. Ground stabilisation means that the display is referenced to the seabed by GNSS or through a twin-axis Doppler log. For sea stabilisation the display is referenced to the sea current that own ship is experiencing, typically based on SDME measurements. It is generally accepted that the ground stabilised mode is more useful for normal navigation, especially when combined with setting tracked targets to show their True vectors. However, since set and drift affect heading and aspect, ground stabilised displays should be used with caution where target tracking is concerned. Sea stabilisation mode gives the navigator a better understanding about the aspect and therefore is used in collision avoidance.