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Author Topic: Collision between Colombo Express and Maersk Tanjong  (Read 5414 times)

Liverbudgie

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Alan R

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Left hand down a bit Mr. Phillips
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I said its Port Said not it im with the Port Side >>:-(

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Martin [Admin]

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #4 on: September 29, 2014, 05:38:59 PM »


In that situation who as right of way?
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Liverbudgie

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #5 on: September 29, 2014, 06:08:45 PM »

I'm not all sure that the Colombo Express should have been overtaking the Maersk Tanjong  in such confined waters in any case. I think that it's down to one of two reasons:
A) A classic example of the interaction that can happen when two large vessels pass to closely to one another exacerbated by the canal banks and bottom
B) Steering gear failure.

However, we shall have to await the result's of the forthcoming inquiry.

LB
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cos918

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #6 on: September 29, 2014, 07:02:34 PM »

Looks like part of the film is missing at 1:50 both stright at 1:53 second boat has turned in  . hell of a turn in 3 sec for such a large boat


john
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boneash

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #7 on: September 29, 2014, 07:39:45 PM »

The overtaking vessel shall keep clear... is the rule Martin.

A dredger took out part of a row of yachts in the Medway  yesterday, 10 or more damaged , dismasted or set adrift.
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tobyker

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #8 on: September 29, 2014, 07:57:09 PM »

I understand from a sailing friend that the Medway incident was down to very thick fog.
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boneash

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #9 on: September 29, 2014, 08:05:57 PM »

Yes it was pretty thick but....GPS previous track....!!
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davidsg1a

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #10 on: September 29, 2014, 10:00:05 PM »

The over taking vessel is the give way vessel, which means colombo keeps out the way, it was too big a turn to port to be caused by interaction, I would put it down to a steering gear failure.
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tobyker

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #11 on: September 29, 2014, 10:24:43 PM »

There seems in the later part of the video to be a small boat in the fairway - could the Columbo Express have been taking avoiding action in order not to run it down?  Better to bump off another boat than to kill someone.
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derekwarner

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #12 on: September 29, 2014, 11:57:35 PM »

Ships of this tonnage have two independent hydraulic pump units for the steering gear

Certainly on the Australian coast, a 100,000 tonner would use one pump from Kembla to Headland & on the return voyage the other pump unit was used......

The circuitry was such that if one pump failed, the other would cut in...if both pumps fail, hydraulic accumulator storage was sufficient to return the rudder to mid ships & PO check valving then locked the rudder .....then chain blocks were available to stroke the rudder after the PO checks were disabled

This is all surveyable equipment ...many years ago.......tasks of mine were to oversee the stripdown of such pumps for both Lloyds & DNV survey

In the late 70's...the Australian Nation Line vessel Mt Newman [104,000 tonner] ...had one 55 GPM Sunstrand radial piston steering gear pump failed Lloyds survey....the ship could not leave port as without the second pump being operational, the vessel fell out of the Society's classification >>:-(......just by chance, the Iron Cumberland was astern of the Newman & the Cumberland had the identical 55 GPM Sunstrand pumps in her cranes....+ one spare........so we borrowed the spare pump from the Cumberland...& the Newman sailed on schedule

ANL paid for the replacement pump for the Cumberland to be imported from Europe......

I find it difficult to understand this exchange between the Colombo & a Maesrk being caused by a steering gear failure......Derek
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Umi_Ryuzuki

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #13 on: September 30, 2014, 01:12:06 AM »

I'm not all sure that the Colombo Express should have been overtaking the Maersk Tanjong  in such confined waters in any case. I think that it's down to one of two reasons:
A) A classic example of the interaction that can happen when two large vessels pass to closely to one another exacerbated by the canal banks and bottom
B) Steering gear failure.

However, we shall have to await the result's of the forthcoming inquiry.

LB


I would also consider this a hydraulic interaction between the ships, and the canal bottom.
The bow of the Columbo was probably pulled back into the channel by the displacement of the Maersk ship as it traveled through the canal.


(and a video cut, they probably stopped filming, then started filming again once they realized a collision was about to occur. )

Xtian29

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #14 on: September 30, 2014, 08:46:29 AM »

Hello


Quote
I would also consider this a hydraulic interaction between the ships, and the canal bottom.


I agree with you Umi, have a look to this Port Revel video when pilot learn this kind of situation : overtaking in a canal -  hopefully it's just model training as experience comes better when it doesn't work. 


https://www.youtube.com/watch?v=dq8EQVl7GG0


Xtian
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meechingman

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #15 on: September 30, 2014, 09:05:30 AM »

If it was interaction between the ships and the channel bottom, then surely the Pilots and Masters would have been well aware of the potential. These two ships appear to be simply too close to each other, and such an overtaking manouevre in confined spaces seems somewhat foolhardy.


I have a feeling that a couple of heads will roll over this.
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rickles23

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #16 on: September 30, 2014, 09:16:25 AM »

Hi,

I would have thought that in that waterway the ships would be line astern?

Regards
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Xtian29

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #17 on: September 30, 2014, 09:33:55 AM »

Quote
If it was interaction between the ships and the channel bottom, then surely the Pilots and Masters would have been well aware of the potential.

This is what happens in the majority of accidents due to human error: people thought they knew

yes certainely some heads will roll
<*<



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Martin [Admin]

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #18 on: September 30, 2014, 09:41:22 AM »

 
I'll bet that the crap excellent quality ebay items I ordered from China was in that red container....



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Colin Bishop

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #19 on: September 30, 2014, 09:43:54 PM »

I would agree that it looks like interaction pulling in the bow of the colliding ship in which case the rudder would be pretty much ineffective.

A moving hull displaces a great deal of water, especially so in shallow water. On ferry trips to Normandy I have been aboard Brittany Ferries vessels on a number of occasions when leaving Ouistreham at low tide. As the ship moves down the narrow channel the water ahead and alongside her draws back to a depth of several feet and then returns as a mini tsunami as the ship passes which can be a bit dampening to fishermen on the banks! It is quite an extraordinary sight. Many years ago when on board an Isle of Wight ferry as part of a model research exercise, the Captain drew my attention to the wave pattern along the side of the ship where the amidships bilge was almost visible. This was due to the shallow water shoal over which the ship was passing.

There is also an interesting video somewhere on the web which shows the Royal Yacht Britannia being sucked against and colliding with the RFA refuelling her with quite a bit of damage to guardrails etc.

Colin
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Brian60

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #20 on: October 05, 2014, 04:49:52 PM »

A bit of polish and a cloth and it'll soon rub out.

adamD98

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #21 on: October 06, 2014, 10:39:29 AM »

I would agree that it looks like interaction pulling in the bow of the colliding ship in which case the rudder would be pretty much ineffective.

A moving hull displaces a great deal of water, especially so in shallow water. On ferry trips to Normandy I have been aboard Brittany Ferries vessels on a number of occasions when leaving Ouistreham at low tide. As the ship moves down the narrow channel the water ahead and alongside her draws back to a depth of several feet and then returns as a mini tsunami as the ship passes which can be a bit dampening to fishermen on the banks! It is quite an extraordinary sight. Many years ago when on board an Isle of Wight ferry as part of a model research exercise, the Captain drew my attention to the wave pattern along the side of the ship where the amidships bilge was almost visible. This was due to the shallow water shoal over which the ship was passing.

There is also an interesting video somewhere on the web which shows the Royal Yacht Britannia being sucked against and colliding with the RFA refuelling her with quite a bit of damage to guardrails etc.

Colin


A bit like this? [size=78%]http://youtu.be/q2OQOAFq-hY[/size]

And... http://youtu.be/DhKRTGRBK5g
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pugwash

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #22 on: October 06, 2014, 02:20:21 PM »

The over taking vessel is the give way vessel, which means colombo keeps out the way, it was too big a turn to port to be caused by interaction, I would put it down to a steering gear failure.

Must say I'm inclined to agree with David.  With two ships the same size interaction usually affects both vessels - This was quite
common in Nato navies where smaller escorts were coming alongside larger tankers to RAS.  Plus the fact they are at one point
quite a distance apart so I'm not sure the interaction scenario would apply.
Geoff
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Netleyned

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #23 on: October 06, 2014, 02:44:40 PM »

http://en.wikipedia.org/wiki/HMS_Fittleton_(M1136)


This is what can happen with ships closing underway


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adamD98

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Re: Collision between Colombo Express and Maersk Tanjong
« Reply #24 on: October 06, 2014, 03:04:25 PM »

http://en.wikipedia.org/wiki/HMS_Fittleton_(M1136)


This is what can happen with ships closing underway


Ned


 Beat me to it! A harrowing story though.
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