Indian Submarine Explodes

Started by airboy, August 14, 2013, 10:49:15 AM

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GDS_Starfury

#15
August 14, 2013, 06:31:45 PM
The explosion on board the INS Sindhurakshak was possibly a result of the buildup of volatile hydrogen gas during a battery charging. Sources told India Today that the submarine had faced a similar explosion when she was docked in Visakhapatnam in February 2010 which killed one crew member.

The navy's Board of Inquiry in 2010 pinned the cause to a faulty battery valve that leaked hydrogen. The submarine was lightly manned at the time of the accident and later sent for a 2.5-year refit to Russia that year. It had returned to the naval dockyard on April 29 this year after the refit that cost approximately $80 million.

Conventional submarines like the Sindhurakshak are powered by a combination of diesel generators and electric batteries. The 2300-ton Sindhurakshak has 500 batteries. These have to be 'over charged' once every few months during which process each cell is manually checked. The presence of a large crew early in the morning points to a supervised battery overcharge.

"The Kilo-class submarines do not have automatic monitoring systems which mean the overcharging is manually supervised," says a former Kilo-class submarine skipper. The built-up hydrogen during a battery charging is sucked out by two blowers. The performance of these blowers can be affected if a proper vacuum is not maintained in the exhaust pathway. If the vacuum as well as the exhaust pathway is not maintained, hydrogen settles in small pockets which can be triggered off by any small spark like a falling utility tool.

Sindhurakshak is the ninth of a series of ten 'Sindhughosh' class submarines that were bought from the erstwhile Soviet Union beginning in 1985. India and China, with ten submarines each, are the world's largest operators of the Soviet-designed Kilo class submarines. Seven Indian Kilo-class submarines have been given mid-life refits in Russia. Refits of two other Kilo-class submarines, Sindhukirti and Sindhushastra, are underway at the naval dockyard in Vizag.
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Staggerwing

#16
August 14, 2013, 06:43:00 PM
All those boat names start with 'Sindhu'. does anyone know any Hindi? Is that name prefix significant as far as naval tradition?
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Windigo

#17
August 19, 2013, 04:08:44 PM
The Sanskrit word Sindhu means river, stream or ocean, probably from a root sidh meaning "to keep off". Sindhu is still the local appellation for the Indus River

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mirth

#18
August 21, 2013, 09:02:37 AM
The Indians are saying the sinking may have been caused by a weapons malfunction.

http://news.usni.org/2013/08/20/indian-sub-explosion-likely-caused-by-detonated-munitions

I wonder if they had any of those rocket propelled torps on board.
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besilarius

#19
August 21, 2013, 06:33:13 PM
Isn't the modified Kilo supposed to carry the new missle, the Klub?
It's specs make it sound really dangerous, but it is Russian tech.  Not the most reliable and stable equipment out there.
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mirth

#20
August 21, 2013, 06:45:25 PM Last Edit: August 21, 2013, 06:48:08 PM by mirth
Yeah, I'm pretty sure the Kilos can carry the Klub. And I think the Shkval (rocket propelled torpedo) can fit in any of the standard Russian torpedo tubes. I don't know what the Indian Navy has for sub weapons, but I read one account of the recent explosion with one witness saying they heard something that sounded like a rocket and then there was the explosion. That could mean just about anything but my first thought was of the Shkval. I know there are rumors that the Kursk was testing a Shkval when he sank.
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"you don't look at the mantelpiece when you're poking the fire" - Bawb

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GDS_Starfury

#21
August 21, 2013, 07:24:12 PM
I would be surprised if the Russians sold those abroad or if they even went into service.
Jarhead - Yeah. You're probably right.

Gus - I use sweatpants with flannel shorts to soak up my crotch sweat.

Banzai Cat - There is no "partial credit" in grammar. Like anal sex. It's either in, or it's not.

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Martok - I don't know if it's possible to have an "anti-boner"...but I now have one.

Gus - Celery is vile and has no reason to exist. Like underwear on Star.

mirth

#22
August 21, 2013, 07:36:23 PM
They're supposedly in service with the Russian Navy. And Wikipedia claims there is a "less capable" export version. I thought the Iranians had some and had copied it to make their own homebrew version. Nothing screams safety like  a reverse engineered Russian rocket torpedo. Our sonar boys are going to be at risk of hearing loss listening to Iranian subs blowing themselves up.
"45 minutes of pooping Tribbles being juggled by a drunken Horta would be better than Season 1 of TNG." - SirAndrewD

"you don't look at the mantelpiece when you're poking the fire" - Bawb

"Can't 'un' until you 'pre', son." - Gus

Boggit

#23
September 04, 2013, 08:40:17 PM
Quote from: mirth on August 21, 2013, 09:02:37 AM
The Indians are saying the sinking may have been caused by a weapons malfunction.

http://news.usni.org/2013/08/20/indian-sub-explosion-likely-caused-by-detonated-munitions

I wonder if they had any of those rocket propelled torps on board.
They didn't buy their torps from China, or Pakistan did they? Somehow that would be a bit predictable...
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bob48

#24
September 06, 2013, 01:42:19 PM Last Edit: September 06, 2013, 04:07:01 PM by bob48
<Lifts up torp to read manufacturers plate>

"MADE IN CHINA"

<Puts torp down VERY carefully and tip-toes out>
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GDS_Starfury

#25
September 06, 2013, 02:16:07 PM
the data plate read ACME Torpedo
Jarhead - Yeah. You're probably right.

Gus - I use sweatpants with flannel shorts to soak up my crotch sweat.

Banzai Cat - There is no "partial credit" in grammar. Like anal sex. It's either in, or it's not.

Mirth - We learned long ago that they key isn't to outrun Star, it's to outrun Gus.

Martok - I don't know if it's possible to have an "anti-boner"...but I now have one.

Gus - Celery is vile and has no reason to exist. Like underwear on Star.

bob48

#26
September 06, 2013, 04:07:15 PM
ROFL!
'We few, we happy few, we band of brothers'

'Clip those corners'

Recombobulate the discombobulators!
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