Indonesian sub's crew oxygen dwindles as worries grow

[Nyte_Byrd]

Indonesian sub's crew oxygen dwindles as worries grow

The KRI Nanggala 402 went missing after its last reported dive Wednesday

https://www.foxnews.com/world/worries-g ... n-dwindles
 
 

[subvet]

I believe they died. Sank in deep water with an oil slick, not good. Hopefully the magnetic return they got will allow the families to have some closure once they get an ROV down there. All submariners are brothers (and now some some sisters) so we mourn their loss regardless of the flag they fly.

[Nyte_Byrd]

Indonesian submarine declared sunk, no hope of survivors

https://www.foxnews.com/world/indonesia ... -survivors


 
 

[Nyte_Byrd]

Submarine that vanished in Indonesia with 53 crew on board is found

An underwater robot found the lost submarine lying in at least three pieces on the ocean floor

https://www.foxnews.com/world/submarine ... d-is-found

[Nyte_Byrd]

Doomed Indonesian sub may have been hit by powerful underwater wave: report

https://www.foxnews.com/world/doomed-in ... ave-report

[subvet]

Doomed Indonesian sub may have been hit by powerful underwater wave: report

https://www.foxnews.com/world/doomed-in ... ave-report

 

Yeah, I've had to deal with that in the Straights of Gibraltar, its pretty freaky the first time you encounter it.  One minute you're extremely heavy and the next you're extremely light.  On a nuclear powered boat you just put on some speed and drive through it.  A diesel boat on it's batteries doesn't have anywhere near that power  That being said, I'm not buying it.  The crew would have had time to conduct an emergency blow and surface the boat unless they were incredibly slow to recognize that they had lost depth control.
 

[John]

Doomed Indonesian sub may have been hit by powerful underwater wave: report

https://www.foxnews.com/world/doomed-in ... ave-report
 

Yeah, I've had to deal with that in the Straights of Gibraltar, its pretty freaky the first time you encounter it.  One minute you're extremely heavy and the next you're extremely light.  On a nuclear powered boat you just put on some speed and drive through it.  A diesel boat on it's batteries doesn't have anywhere near that power  That being said, I'm not buying it.  The crew would have had time to conduct an emergency blow and surface the boat unless they were incredibly slow to recognize that they had lost depth control.
 

I wonder if with an older sub if there were contributing factors involved, including the possibility of crew late or inaction as you mentioned?  I recall the cases of the USS Scorpion and Thresher.  Wonder if the crews had time to realize their impending doom or if things happened very quickly.

A bit off topic, but this was just published a few months ago regarding the Thresher:

https://www.kitsapsun.com/story/news/20 ... 173822001/

[subvet]

Doomed Indonesian sub may have been hit by powerful underwater wave: report

https://www.foxnews.com/world/doomed-in ... ave-report

 

Yeah, I've had to deal with that in the Straights of Gibraltar, its pretty freaky the first time you encounter it.  One minute you're extremely heavy and the next you're extremely light.  On a nuclear powered boat you just put on some speed and drive through it.  A diesel boat on it's batteries doesn't have anywhere near that power  That being said, I'm not buying it.  The crew would have had time to conduct an emergency blow and surface the boat unless they were incredibly slow to recognize that they had lost depth control.

 

I wonder if with an older sub if there were contributing factors involved, including the possibility of crew late or inaction as you mentioned?  I recall the cases of the USS Scorpion and Thresher.  Wonder if the crews had time to realize their impending doom or if things happened very quickly.

A bit off topic, but this was just published a few months ago regarding the Thresher:

https://www.kitsapsun.com/story/news/20 ... 173822001/

 

In the case of THRESHER, yes, they knew what was happening and fought all the way to implosion.  Likewise, SCORPION was aggressively maneuvering in what appears to be an attempt to shut down a hot running torpedo.  Unlike THRESHER, it looks like their case is closer to what happened to KURSK.  With regards to the article and in all due deference to the Captain, we were in a cold war and technology gains with their accompanying capabilities were critical to outpacing the Soviets. Since there's no free lunch, those gains came with risks such as learning how to operate with the expanded safe operating envelope, operate a ship with less reserve buoyancy, and learn the hydrodynamics associated with the new hull form.  The 594 class led to the 637 class which ultimately became the workhorse of the submarine fleet for several decades.  The 688 class and 726 class both represented massive changes to design, size and performance with each lead ship of the class taking on the role as the experimental ship where we learned to operate them. Now they're on the way out with 774 class delivering its 19th boat and the COLUMBIA program working its way to delivery.  Not to ramble on, but we do incremental improvements within a ship class and transformational improvements with new ones.  No different than aircraft, this has risks and you need to manage them.
 

[John]

Yeah, I've had to deal with that in the Straights of Gibraltar, its pretty freaky the first time you encounter it.  One minute you're extremely heavy and the next you're extremely light.  On a nuclear powered boat you just put on some speed and drive through it.  A diesel boat on it's batteries doesn't have anywhere near that power  That being said, I'm not buying it.  The crew would have had time to conduct an emergency blow and surface the boat unless they were incredibly slow to recognize that they had lost depth control.


 

I wonder if with an older sub if there were contributing factors involved, including the possibility of crew late or inaction as you mentioned?  I recall the cases of the USS Scorpion and Thresher.  Wonder if the crews had time to realize their impending doom or if things happened very quickly.

A bit off topic, but this was just published a few months ago regarding the Thresher:

https://www.kitsapsun.com/story/news/20 ... 173822001/


 

In the case of THRESHER, yes, they knew what was happening and fought all the way to implosion.  Likewise, SCORPION was aggressively maneuvering in what appears to be an attempt to shut down a hot running torpedo.  Unlike THRESHER, it looks like their case is closer to what happened to KURSK.  With regards to the article and in all due deference to the Captain, we were in a cold war and technology gains with their accompanying capabilities were critical to outpacing the Soviets. Since there's no free lunch, those gains came with risks such as learning how to operate with the expanded safe operating envelope, operate a ship with less reserve buoyancy, and learn the hydrodynamics associated with the new hull form.  The 594 class led to the 637 class which ultimately became the workhorse of the submarine fleet for several decades.  The 688 class and 726 class both represented massive changes to design, size and performance with each lead ship of the class taking on the role as the experimental ship where we learned to operate them. Now they're on the way out with 774 class delivering its 19th boat and the COLUMBIA program working its way to delivery.  Not to ramble on, but we do incremental improvements within a ship class and transformational improvements with new ones.  No different than aircraft, this has risks and you need to manage them.
 

 

Excellent perspective. Thanks very much.