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Very Large Ore Carrier goes missing

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Very Large Ore Carrier goes missing

Old 11th Apr 2017, 10:05
  #101 (permalink)  
 
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Originally Posted by Ancient Mariner View Post
....but as Chief Engineer I knew my bunkers down to the last tonn. And its location.
Per

I never met a Chief Engineer yet that didn't keep a couple of tons of (undeclared) bunkers 'up his sleeve'
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Old 11th Apr 2017, 11:05
  #102 (permalink)  
 
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Originally Posted by Mariner9 View Post
I never met a Chief Engineer yet that didn't keep a couple of tons of (undeclared) bunkers 'up his sleeve'
Noooo.
Per
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Old 11th Apr 2017, 14:28
  #103 (permalink)  
 
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Memory of loading ore carriers is 45yo and me could only do up 50k due port limitations (Kwinana WA) but critical to go from hold to hold (and then back again) during loading to avoid overstress. A couple of the Japanese ships had a [email protected] setup to measure bending at each hold during loading - seemed like a good idea.

The other big problem is operation in shallow water (less than waterline length) where reflection of bow wave caused fatigue issues. This meant ships on the Weipa/Gladstone run only lasted a few years (5?)
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Old 11th Apr 2017, 15:48
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Cargo computers have been around for longer than the ability to use them correctly.
https://www.km.kongsberg.com/ks/web/...5?OpenDocument
Per
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Old 14th Apr 2017, 04:58
  #105 (permalink)  
 
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The answer is obvious:

John Clarke: Bryan Dawe says death of long-time collaborator 'such a loss' - ABC News (Australian Broadcasting Corporation)

Very funny these two with the gentleman on the left passing away recently.
Do yourself a favour and look for clarke and dawe
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Old 27th Apr 2017, 15:25
  #106 (permalink)  
 
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Russia to invade Togo?

Russian Ship Sinks after Collision near Bosporus Strait | World Maritime News
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Old 27th Apr 2017, 18:37
  #107 (permalink)  
 
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Has anybody discovered anything about the ship that was the origin of this thread?
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Old 27th Apr 2017, 19:46
  #108 (permalink)  
 
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as anybody discovered anything about the ship that was the origin of this thread?
The last i heard it was sailing now as the "Carl Vincent" after a cosmetic makeover
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Old 27th Apr 2017, 20:07
  #109 (permalink)  
 
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Did anyone survive the original sinking? I heard 2 crew did, can anyone confirm this?
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Old 27th Apr 2017, 20:12
  #110 (permalink)  
 
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From Lloyds list, 05 April, 2017.
https://www.lloydslist.com/ll/sector...icle553292.ece
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Old 28th Apr 2017, 06:18
  #111 (permalink)  
 
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Has it been reported on what the 2 survivors have said about the tragedy?
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Old 28th Apr 2017, 16:13
  #112 (permalink)  
 
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Originally Posted by Octane View Post
Has it been reported on what the 2 survivors have said about the tragedy?
Not sure, as I am unable to translate Korean profanity when it is uttered with such speed and energy.


On a more serious note, for anyone who understands this, the Lloyds article cited "liquefied cargo" as a possible issue and stated that iron ore can liquefy when being shipped. As I understand it, iron ore is rocks with a lot of iron in it. How do you liquefy a rock without heating it, like in a steel mill? Confused, I am. Per, do you have any experience with this?
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Old 28th Apr 2017, 16:24
  #113 (permalink)  
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Although they often look dry in appearance at the time of loading, these cargoes contain moisture in between the particles. At the time of loading, the cargoes are usually in their solid state, where the particles are in direct contact with each other and, therefore, there is physical strength of resistance to shear strains. During ocean transport, cargoes are exposed to agitation in the form of engine vibrations, ship's motions and wave impact, resulting in compaction of the cargo. This leads to a reduction of the spaces between the particles. If compaction is such that there is more water inside the cargo than there are spaces between the particles, the water pressure inside the cargo can rise sharply and press the particles apart. This suddenly reduces the friction between particles, and thus the shear strength of the cargo.
The effect of this process is a transition from a solid state to a viscous fluid state in which all or part of the cargo can flatten out to form a fluid surface. In this condition, cargo may flow to one side of the ship with a roll one way but not completely return with a roll the other way, progressively leading to a dangerous list and potentially the sudden capsizing of the vessel.
. . . . . .


More here:- Liquefaction of unprocessed mineral ores - Iron ore fines and nickel ore.
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Old 28th Apr 2017, 18:00
  #114 (permalink)  
 
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Ah, that makes more sense, I hadn't realized that the ores were crushed that finely before shipping. (And the link is a great explanation!)
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Old 28th Apr 2017, 18:26
  #115 (permalink)  
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Leaking hatch covers can accelerate the liquification process when the sea gets in.
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Old 28th Apr 2017, 20:35
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Once liquifaction occured, free surface effect took over and I assume she went down quick then?
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Old 28th Apr 2017, 20:37
  #117 (permalink)  
 
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Originally Posted by merch View Post
A bit of oil and water creeping in there AM.
Haha. Very first thing I was taught in my first hour at Naval College in Glasgow "Oil and Water don't mix"!!!
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Old 2nd May 2017, 12:24
  #118 (permalink)  
 
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It seems it has not posted before:

?Rolling like I?m inside a washing machine?: Terrifying account of the sinking of the Stellar Daisy - Splash 247
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Old 2nd May 2017, 14:04
  #119 (permalink)  
 
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Thanks for that, the "explosion" sound might have been something large failing catastrophically.
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Old 3rd May 2017, 00:50
  #120 (permalink)  
 
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Lump Iron Ore is like gravel,but "fines' is more like grit.
Water sprays are used from crushing,stockpiling,loading onto trains and again on stockpiles at the port,and into the ship....for dust control.
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