US Navy destroyer collides with merchant vessel

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#1803971 20-Jun-2017 12:53

Geektastic:

MikeAqua:

Did the merchant ship have a pilot* on board?

The U turns could be explained as turning the ship around so the local pilot can board from the sheltered side.

* pilot in this context is a mariner employed by a port to navigate ships in and out of the port.

Wouldn't there be a lee side regardless (more or less) of the direction of travel with only a small course correction rather than a complete U turn?

Depends on the vessel: It may have the ladder and entry point for the pilot on one side only.

Mike

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#1803989 20-Jun-2017 13:28

Another group of people with time on their hands http://www.vesselofinterest.com/2017/06/mapping-acx-crystals-collision-with-uss.html

Fred99

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#1849860 21-Aug-2017 15:12

SEOUL — Ten U.S. Navy sailors were missing and five were injured after the USS John S. McCain guided missile destroyer and an oil tanker three times its size collided near Singapore early Monday.

This collision came just days after the Navy issued a damning report listing errors that led to a collision between the USS Fitzgerald — also a Yokosuka-based Arleigh Burke-class destroyer — and a much larger container ship just south of Japan in June.

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#1849917 21-Aug-2017 17:17

Yikes, again?

JaseNZ

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#1849943 21-Aug-2017 17:50

Yeah I see that, not a good look for their navy.

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shk292

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#1849944 21-Aug-2017 17:52

Amazing, isn't it? Either merchant ships are deliberately colliding with USN wasrships or the USN needs to review its bridge officer competency.

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DarthKermit

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#1849947 21-Aug-2017 17:56

Don't they have radar or somethink?

tdgeek

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#1849952 21-Aug-2017 18:09

DarthKermit:

Don't they have radar or somethink?

Maybe it needs to borrow TCAS from aircraft. Hard ti imagine sea collisions, but night, mistakes I guess can happen

vexxxboy

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#1849972 21-Aug-2017 19:26

DarthKermit:

Don't they have radar or somethink?

i dont know , i was on a ship that hit an island and it had radar.

Common sense is not as common as you think.

Fred99

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#1850050 21-Aug-2017 22:27

tdgeek:

DarthKermit:

Don't they have radar or somethink?

Maybe it needs to borrow TCAS from aircraft. Hard ti imagine sea collisions, but night, mistakes I guess can happen

They do have AIS transponders, but navy ships often turn them off. You'd think that should result in need for extra vigilance, especially when they're in a shipping lane. OTOH the commercial vessel should also be looking out not relying on every other vessel on the water having transponders working.

The last US Navy prang, IIRC the freighter saw them 10 minutes before the collision and tried signalling them with lights. If the Fitzgerald's transponder had been on, the crew on the freighter would have been able to identify the vessel by name and call them on VHF.

Anyway:

The collision marks the fourth time this year a Navy vessel with the 7th Fleet has been involved in a major mishap, an embarrassing string that has prompted the service to remove several senior officers from command.

The others include the deadly collision involving the USS Fitzgerald on June 17, a May 9 incident in which the guided-missile cruiser USS Lake Champlain collided with a South Korean fishing vessel east of the Korean Peninsula and a Jan. 31 mishap in which the guided-missile cruiser USS Antietam ran aground in Tokyo Bay, near its home port of Yokosuka.

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#1850142 22-Aug-2017 08:34

Fred99:

Warships tend to be painted colours to make them less visible, they probably don't have AIS transponders on at all times, they might not even be displaying lights.

Big question perhaps - if this is being reported accurately - is why did the container ship make a 180 deg U turn 20 minutes before the collision, then resume course?

The destroyer got a glancing blow - if it had been whacked amidships by the container ship at full-speed, it would have been cut in half.

Most warships I have seen are a light grey which is very visible at close distances i.e. a couple of Km. You have a navy vessel fully of high tech equipment and multiple people on the bridge using high powered binos. I would say that the navy vessel while not necessarily at fault should have been able to avoid the situation.

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#1850152 22-Aug-2017 09:01

I think the US Navy needs to invest in a couple of these with Collision alarm

http://icom.co.nz/marine/ais-receivers-navigation/ma-500tr

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#1850154 22-Aug-2017 09:04

The freighter was 4 times the size of the navy ship and commensurately less maneuverable. Regardless of who had right of way, the commander of the navy ship should still have avoided the collision. So he and the watch crew will no doubt go down the gurgler in courts martial the same as the other one.

But now the commander of the fleet should go as well. The buck travels up.

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#1850167 22-Aug-2017 09:29

MikeB4:
Dratsab:

michaelmurfy: Crap better not be the USS Michael Murphy.

Nope - USS Fitzgerald - you're safe :-)

MikeB4: Virtually no info known and way too early to even begin to comment on this.

Rubbish, it's never too early to comment on anything.

Ok what was the weather? what were their bearings? What were their speeds? What were their mechanical conditions? Who was on the bridges? Like I said virtually zero is known.

I had thought that warships were prepared for ...you know....war.

I would have thought every encounter with every other ship would have been considered an exercise.

Simply waiting until its too late seems to be the stupid option.

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#1850168 22-Aug-2017 09:29

DarthKermit:

Don't they have radar or somethink?

They do, but when you transmit on something it makes it easy for someone to find your position based on the emissions you are giving off.

hence why a battle group will only have one ship transmitting and they will be sharing the radar picture with the rest of the ships over a short distance link. means anyone "looking" will only see one ship.

tdgeek:

Maybe it needs to borrow TCAS from aircraft. Hard ti imagine sea collisions, but night, mistakes I guess can happen

they have a system, its called AIS warships will have the system but are not required to have it transmitting. but should have it receiving all the time so they know what is going on around them.

AIS can also integrated into radar systems and electronic charts so contacts can be overlayed on those pictures.

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