Category: Through the lens
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ENSO, THE KING OF ALL METEOROLOGICAL PHENOMENON
El Nino is associated by high air pressure in the Western Pacific and low air pressure in the Eastern Pacific. During El Nino, the trade winds decrease, ocean water piles up off South America, the sea surface temperature increases in the Eastern Pacific, and there is a shift in the prevailing rain pattern from the Western Pacific to the…
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Container Lashing-2 (Method)
General Securing InformationWhen a container securing plan (for the holds and the deck) is prepared, the following are some of the important considerations:1. The stresses from the ship’s motions.2. The stresses from the wind thrust.3. Slippage and toppling. The popular ways to carry the containers together is by:● Stacking the containers in vertical guide rails● …
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Container Lashing-1 (Material)
Tension Lever Binder:Tension lever binder or senhouse slip is used for quick lashing providing tension on the lashing material. The advantage being fast securing and quick release in emergency. The hooks placed in the links after pulling them together as close as possible. After the lever is operated the gap between the two hooks is…
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TURNING CIRCLE
A ship handler must very clearly understand and remember the following in respect of his ship: 1. The details of turning circle 2. Any limitation of the vessel, or main engine in respect of maneuvering. 3. Stopping distance, Crash stop data, etc. RegulationA turning circle maneuver is to be performed to both starboard and port…
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Grounding (Refloating by Salvage Experts)
(Please read my previous art on grounding calculations) In my last articles on grounding I dealt with simple formulae in respect of pinnacle grounding and I also talked about refloating with limited resources. Sometimes, it may be felt that refloating by limited means is not possible in near future. The spring tides is far away…
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Grounding (Calculations)
(Please see my last art on grounding [methods of refloating]) In the pinnacle or point grounding the basic formula always used is Change of tide at point of contact = Fall of tide in m = Where, P is the ground reaction on hull by bed after a certain fall of tide. RF is the…
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Grounding (Refloating with Limited Resources)
(See my previous article Grounding [Initial action to take]) Effects of Grounding include failure of the hull, virtual loss of stability (proportional to the fall of tide), loss of strength (extent unknown), capsizing (due listing, bilging or virtual loss of stability), ship breaking (excessive bending due localized upthrust), etc. Constructive total loss, injury to crew,…
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Master-Pilot Relationship
Master Pilot relationship has always been an interesting issue to debate. One has always something to talk on this, some experience to share, etc. The Pilotage zone, being the most vulnerable of the entire passage to accidents, is always exposed to the possibility of accidents. There is always a possibility of gray area owing to…
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GROUNDING (Initial Action to take)
Being aground represents status of ship in the same way as afloat, underway, making way, alongside, etc. It is actually physical touching of sea bed, due whatever reason, with hull even if the contact area is very slight. Beaching is intentional grounding. ‘Stranded’ implies the inability of ship to float free after being aground, by…
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Sea Ice 1(Ice Navigation)
Navigation in ice is a great challenge as well as experience. One may handle the icy conditions on an ice strengthened ship, having done a specialised course on ‘Ice Navigation’, ‘High Latitude Navigation’, etc., though, on the other hand one might simply encounter ice, unprepared for the difficulties. To operate the ships within an ice…