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  #31  
Old 21 Aug 17, 14:51
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Quote:
Originally Posted by Vaeltaja View Post
Well.. Tanker's speed comes down immediately at the tight turn. Which implies quite strongly that the tight turn (which you referred to as 90 degree turn) is in fact the collision (not something that happened prior to it). Also you can see - if you look the AIS more closely - that the tanker does not actually turn as much as its movement vector would indicate. Which kinda implies an outside force acting on it - like a destroyer.
It looks to me on the tracker that the tanker took a hard right into the destroyer, then made several course corrections to get away before resuming the original course.

I would think that there's at least an outside chance it was deliberately done.
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  #32  
Old 21 Aug 17, 15:23
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Quote:
Originally Posted by T. A. Gardner View Post
It looks to me on the tracker that the tanker took a hard right into the destroyer, then made several course corrections to get away before resuming the original course.
Where exactly do you see a 'hard right'?

Tanker seems to have been sailing among several other ships on same course (~230) at around 10 knots - along the proper side of the traffic separation. And I'm not quite sure how you think the tanker turned 'right'. First turn related to the collision i can see is to left from ~230 to around 180 (tanker's movement vector turns even more but orientation does not appear to). Assuming you are willing to trust the AIS.

Also apparently rules for those waters require ships to move to the starboard side of the traffic separation lane (from their perspective) in case of trouble. PDF:SAFETY OF NAVIGATION IN THE SINGAPORE STRAIT (could be outdated)
Quote:
I would think that there's at least an outside chance it was deliberately done.
I really doubt that. More likely negligent. IIRC some page claimed the Liberian/Greek tanker apparently flunked some navigation check ups.

http://www.kcrg.com/content/news/Nav...441206273.html
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  #33  
Old 21 Aug 17, 16:02
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Thread moved to Naval Warfare.

Of topic posts deleted.

Please keep politics out of this thread.
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  #34  
Old 21 Aug 17, 16:59
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Aircraft are often equipped with (a) GPS and (B) transponder.

Current software includes a realtime virtual radar that allows even glider pilots to get routinely a display of nearby other aircraft, altitude, and their speedvector. It's not just a toy: it is hard to detect a white aircraft superimposed on white clouds, seemingly stationary because both speedvectors are converging. I can say from experience it works.

I could easily imagine such a system (GPS, transponder, radar, appropriate software) for ships to be a piece of cake, if not already existant.
A transponder would normally be enough to identify a ship and its approximate manoeuverability. Software should easily be able to calculate the probability of an imminent collision, either with info from the radar and/or from the GPS.

Is there such a system?
If so, is it routinely available?
Are (larger) ships equipped with transponders?
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  #35  
Old 21 Aug 17, 17:17
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Originally Posted by Combat Engineer View Post
You missed this one... I wonder why....

Nothing to wonder about.

TAG and your response to TAG can loosely be tied in with the thread. The other two responses were about Trump, who had nothing to do with this thread......same way that your eclipse thread was going pretty well until eventually Bow had to pull Trump into the thread.
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  #36  
Old 21 Aug 17, 18:15
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Well, the stand down has been ordered.

Quote:
The U.S. Navy ordered a broad investigation Monday into the performance and readiness of the Pacific-based 7th Fleet after the USS John S. McCain collided with an oil tanker in Southeast Asian waters, leaving 10 U.S. sailors missing and others injured.

"It is the second such incident in a very short period of time inside of three months and very similar as well," Navy Adm. John Richardson, the chief of naval operations, told reporters at the Pentagon. "It is the last of a series of incidents in the Pacific fleet in particular and that gives great cause for concern that there is something out there we are not getting at."

Richardson ordered a pause in operations for the next couple of days to allow fleet commanders to get together with leaders, sailors and command officials and identify any immediate steps that need to be taken to ensure safety.
https://www.yahoo.com/news/10-sailor...063113831.html

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  #37  
Old 21 Aug 17, 18:23
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This AM, the barking moonbats on FaceBook were calling the crew "heroes". I guess that word got re-defined somehow as the alternate definition for "incompetent".

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  #38  
Old 21 Aug 17, 18:25
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Quote:
Originally Posted by Combat Engineer View Post
You're confused on who the ship is named after.....
It's either the Senator or his Grandfather the Admiral because they share the same name. Since I don't see a "Senior" on it, I'd say the senile Senator....
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  #39  
Old 21 Aug 17, 18:37
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Quote:
Originally Posted by T. A. Gardner View Post
It's either the Senator or his Grandfather the Admiral because they share the same name. Since I don't see a "Senior" on it, I'd say the senile Senator....
The ship was named after McCain Sr and McCain Jr both were admirals during WWII

http://dailycaller.com/2017/08/21/da...aval-admirals/
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  #40  
Old 21 Aug 17, 19:17
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Quote:
Originally Posted by FTCS View Post
The ship was named after McCain Sr and McCain Jr both were admirals during WWII

http://dailycaller.com/2017/08/21/da...aval-admirals/
Jr was not Admiral during WWII.
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  #41  
Old 21 Aug 17, 20:01
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Quote:
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Jr was not Admiral during WWII.
I stand corrected. He made Admiral in 1967
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  #42  
Old 21 Aug 17, 23:16
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Wow, yet another collision. I really have to wonder how much the Navy relies on computers, GPS, radar etc verses actual eyes on the bridge wing. You would think that after the Fitzgerald incident, that there would have been more training, and safety precautions put in place. This is just crazy.
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Old 22 Aug 17, 00:11
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  #44  
Old 22 Aug 17, 02:09
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Quote:
Originally Posted by Rutger View Post
Aircraft are often equipped with (a) GPS and (B) transponder.

Current software includes a realtime virtual radar that allows even glider pilots to get routinely a display of nearby other aircraft, altitude, and their speedvector. It's not just a toy: it is hard to detect a white aircraft superimposed on white clouds, seemingly stationary because both speedvectors are converging. I can say from experience it works.

I could easily imagine such a system (GPS, transponder, radar, appropriate software) for ships to be a piece of cake, if not already existant.
A transponder would normally be enough to identify a ship and its approximate manoeuverability. Software should easily be able to calculate the probability of an imminent collision, either with info from the radar and/or from the GPS.
Easily is bit of stretch but otherwise true. Aircraft indeed have the TCAS which does that.
Quote:
Is there such a system?
If so, is it routinely available?
Are (larger) ships equipped with transponders?
The 'transponder' part is already in use - AIS. It is how we get the movement data. Larger ships are all equipped with it - or at least in certain areas are required to be equipped with it. Military however - as usual - is terrified of any one getting a slightest hint of their presence so despite of carrying full AIS gear they tend to use only the receiver. Apparently US Navy does this even in high traffic zones.

Military vessels typically have gear which allows them to give false readings to AIS system too, wrong location data and so on, and use 'custom names' to hide the actual identity of the ship.
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Old 22 Aug 17, 08:29
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Quote:
Originally Posted by T. A. Gardner View Post
It looks to me on the tracker that the tanker took a hard right into the destroyer, then made several course corrections to get away before resuming the original course.

I would think that there's at least an outside chance it was deliberately done.
I would not go that far and the results of the investigation are not out yet and won't be for a while. What I do know for a fact is that the McCain was struck on the port side. That means that McCain was the stand on vessel; for you landlubbers that means that she had the right of way and did not have to maneuver. Other than that it appears that she lost steering prior to the collision. We shall see what is discovered but I will caution in the strongest possible terms against giving any credibility to tin foil hat conspiracy theories.
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