Author Topic: USS John S. McCain Collision 20 Aug 17  (Read 14792 times)

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Offline YZT580

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #175 on: October 10, 2017, 11:18:08 »
Except that in the McCain incident, no one reported any GPS issues. There were hundreds of ships within the immediate vicinity. Had someone messed with the GPS signal, there would have have been dozens of collisions- not just one.

Occams Razor....
Nor would it be reported since as far as other traffic was concerned their positions would be normal.  GPS spoofing can be focused and targeted to a single receiver.

Offline Colin P

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #176 on: October 10, 2017, 11:53:37 »
You would have to be in LOS of that receiver and pretty close

Offline Navy_Pete

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #177 on: October 10, 2017, 21:39:44 »
Also, visually tracking the great big ship coming right at you would be a pretty big clue that maybe your GPS is off.  People tend to 'trust but verify' by sighting the visual bearings to make sure you aren't on a collision course when you get close.

Online FJAG

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #178 on: October 11, 2017, 00:45:10 »
Illegitimi non carborundum
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Offline YZT580

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #179 on: October 11, 2017, 07:19:10 »
Also, visually tracking the great big ship coming right at you would be a pretty big clue that maybe your GPS is off.  People tend to 'trust but verify' by sighting the visual bearings to make sure you aren't on a collision course when you get close.

So if they were visually tracking why the heck didn't  they get out of the way?  It is sort of self evident that no one was paying attention on either the McCain or the tanker until the sound of scraping metal woke them up.  The helmsman on the tanker would probably have been following a GPS track down the traffic lane.  Spoofing him would alter his course by 14 degrees or so without his actually paying much attention.  If no one on the McCain was keeping a sharp bridge watch you can be certain that the crew of the tanker was no more aware, after all they were linked into the master tracking programme and probably relying on it for other traffic.  The McCain wasn't linked so it would not have been visible except from the wing and at night even an alert watch keeper might have had difficulty noticing the converging traffic.  Sure as heck the McCain's watch didn't notice

Offline Colin P

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #180 on: October 11, 2017, 10:33:52 »
Part of the problem in those waters is that any course alteration to avoid another ship can easily put you onto another imminent collision course with yet another ship. Everyone depends on everyone else to follow some sort of rational and consistent course and speed to make it work.

Offline tomahawk6

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #181 on: October 22, 2017, 00:05:29 »
The vessel carrying the McCain is being diverted to the PI due to a 4 inch crack that needs to be attended to in a harbor.

https://www.stripes.com/news/pacific/new-hull-crack-typhoon-divert-collision-damaged-uss-mccain-to-philippines-1.493644

Offline Colin P

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #182 on: October 23, 2017, 10:35:37 »
Enough repairs to get her back in service, till a new hull is built and she is stripped of her weapons and sensors?

Online FJAG

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Re: USS John S. McCain Collision 20 Aug 17
« Reply #183 on: November 01, 2017, 22:22:29 »
Illegitimi non carborundum
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Access my "Allies" book series at:
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