Remember when i was ridiculed for "Food Security" claims?

brigadoon

Member
Location
Galloway
Wtf happened there?
Well the accident report will make interesting reading for sure, there is only so much you can glean from a short video but from other sources we know that she was still doing almost 6 knots at the time of the incident.

That might indicate that she did not intend to berth on the quay she hit or it might indicate a malfunction which prevented the ahead propulsion being stopped - the propellor was driving ahead until the point at which the black smoke poured out of the funnel.

If it was a control malfunction there would be an emergency stop function on the main engine but that was obviously not used

I would guess that she simply started a turn to starboard too late and overshot her planned track - a somewhat dramatic case of oversteer

The rudder is generally over to starboard presumably to bring the bow around to avoid ramming the ship on the next berth ahead, however since the centre of rotation is about 1/3 of the length back from the bow it also drives the stern to port - with unfortunate effects as shown on the gantry she contacted. The tug attached to the stern - which will be about 5-6000 bhp - did not seem to be fully utilised in trying to prevent or mitigate the stern contacting the quay .

A poor day for the master and pilot for sure and one guy injured
 

graham99

Member
Well the accident report will make interesting reading for sure, there is only so much you can glean from a short video but from other sources we know that she was still doing almost 6 knots at the time of the incident.

That might indicate that she did not intend to berth on the quay she hit or it might indicate a malfunction which prevented the ahead propulsion being stopped - the propellor was driving ahead until the point at which the black smoke poured out of the funnel.

If it was a control malfunction there would be an emergency stop function on the main engine but that was obviously not used

I would guess that she simply started a turn to starboard too late and overshot her planned track - a somewhat dramatic case of oversteer

The rudder is generally over to starboard presumably to bring the bow around to avoid ramming the ship on the next berth ahead, however since the centre of rotation is about 1/3 of the length back from the bow it also drives the stern to port - with unfortunate effects as shown on the gantry she contacted. The tug attached to the stern - which will be about 5-6000 bhp - did not seem to be fully utilised in trying to prevent or mitigate the stern contacting the quay .

A poor day for the master and pilot for sure and one guy injured
going on the smoke there was a fare old wind blowning as well
 

brigadoon

Member
Location
Galloway

You nautical sorts, there would seem to be a lack of tugs on hand to control that vessel? It's moving at a fair lick??
There is one at each end of about 4-6000 BHP, they are azimuth stern drives (the propellors can be turned through 360 degrees to drive in any direction) and they are towing off the bow winch so that they can pull through an arc of 180 degrees or shorten in until the bow is against the hull and push.

Its not clear that the bow tug was actually connected but looking at the propwash on the video it seems probable. The ship herself has a bowthrust unit

Having said that there is about 60,000t of steel, fuel and water there so the tugs are not overpowered, there is also 8000 sq metres of windage with the wind on to the berth and reasonably fresh

At the time of the accident she was moving at about 5-6 knots so the tugs are effectively there as escorts - they can assist a bit with steering and positioning but it takes time for them to work themselves into the right position to do so.

Before initiating the turn to starboard she was moving at 9 knots so it seems likely that they have been slowing down during the turn which in itself will reduce rudder efficiency to some degree.

In farming terms the tugs are pretty much in the same situation as a guy holding a bull on a halter without a noseclip.
 

Blaithin

Member
Livestock Farmer
Location
Alberta

Tractorstant

Member
Location
Monaco.
There is one at each end of about 4-6000 BHP, they are azimuth stern drives (the propellors can be turned through 360 degrees to drive in any direction) and they are towing off the bow winch so that they can pull through an arc of 180 degrees or shorten in until the bow is against the hull and push.

Its not clear that the bow tug was actually connected but looking at the propwash on the video it seems probable. The ship herself has a bowthrust unit

Having said that there is about 60,000t of steel, fuel and water there so the tugs are not overpowered, there is also 8000 sq metres of windage with the wind on to the berth and reasonably fresh

At the time of the accident she was moving at about 5-6 knots so the tugs are effectively there as escorts - they can assist a bit with steering and positioning but it takes time for them to work themselves into the right position to do so.

Before initiating the turn to starboard she was moving at 9 knots so it seems likely that they have been slowing down during the turn which in itself will reduce rudder efficiency to some degree.

In farming terms the tugs are pretty much in the same situation as a guy holding a bull on a halter without a noseclip.

Good Knowledge, I know the first reaction from any skip is "dead ship" it's the same world over. Last thing LLoyds need!
 

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