Author Topic: Mk. 48 topedo test  (Read 601 times)

Offline whgates3

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Mk. 48 topedo test
« on: January 08, 2003, 06:20:12 PM »
video is kinda screwy - like like failure to switch ascii transfer mode to binary, but the meat of it is there

http://www.navy.gov.au/fegs/submarines/images/sinkex.asf

theres a quicktime version of it @the web site, maybe thats better...

http://www.navy.gov.au/fegs/submarines/mk48.html

Offline Wotan

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Mk. 48 topedo test
« Reply #1 on: January 08, 2003, 06:48:10 PM »
Thats nothing, If you could see the films of the shock trials I went through on the USS Jacksonville (688 class attack sub) back in late '87 (or early '88). It was the 1st time since the Thresher that that they ran these tests.

Our Combat Systems Officer had to get air lifted out because banged his head so hard he needed 38 stitches.

Remember the old Star Treks when the guys on the Bridge flung themselves about. Thats about how it was.

The way they ran the test is we would head between a set of "gates" at a certain depths and then 2 huge under water explosions would go off. We all recieved pictures of the water plumes that were blown up.

Its been a while and I am not sure how much is still clasified but it was shrecking 10 sec of hell.

We spent the next 3 years in Portsmouth Naval Shipyard in Va. getting completely refit.

Offline Tarmac

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Mk. 48 topedo test
« Reply #2 on: January 08, 2003, 06:57:36 PM »
What's a Mk 48 torpedo?

Modern?  US Navy?

Offline Wotan

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« Reply #3 on: January 08, 2003, 07:55:24 PM »
yup usn wire guided torp.......... it detonates at a set depth (a given depth under the ship) it creates a pressure wave (air bubble) that expands then collapses. This breaks the "back" of the ship.

The Brits sank an Arg. Battleship during the Falklans War with one.

Offline Airhead

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Mk. 48 topedo test
« Reply #4 on: January 08, 2003, 08:26:45 PM »
Quote
Originally posted by Wotan

The Brits sank an Arg. Battleship during the Falklans War with one.


Boy, that Falklands War was another one where we bailed out England, huh? Hey you Brits, if it wasn't for us you'd all be speaking Portugese now.

Offline Swager

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Mk. 48 topedo test
« Reply #5 on: January 08, 2003, 08:27:59 PM »
I knew two guys off the Jacksonville in 1983 until 1985.  I remembered when the 699 did the shock test.  I was working at Analysis and Technology and some guys were working on some of the data analysis for it.  

From what I understand, it was pretty brutal!  Wasn't the 699 scheduled for her upkeep anyways?  Groton went for her upkeep in Sept 1985.  Hell, I remember when the 699 was Comissioned!  :)

I believe the Brits sank the Arg. cruiser General Bulgaro (Ex-Uss Phoenix) with two old straight running torpedoes.  

I believe, the HMS Conqueor did not have the correct fire control to fire the MK48.  The Brits mainly stay with their own developed torpedoes (Spearfish and Tigerfish, I think), but they do use our Harpoons, T-LAMs and T-ASMs.
« Last Edit: January 08, 2003, 08:30:36 PM by Swager »
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Offline Wotan

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Mk. 48 topedo test
« Reply #6 on: January 08, 2003, 09:06:19 PM »
Yup we got selected because we were scheduled for the yards.

I got out of school and took 30 days leave.  At school folks would rag me about going to the "crashingville" I guess the boat had a rep of collisions.

Anyway got to the boat and 3 weeks later they tried blow us up :)

Oh thought I read where the brits used a mk48 on the Arg. Ship.......its been a while though :)

Damn your old Swagger :)

Offline Tarmac

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« Reply #7 on: January 08, 2003, 09:20:36 PM »
Cool, thanks for the info everyone.

Offline streakeagle

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Mk. 48 topedo test
« Reply #8 on: January 08, 2003, 09:40:56 PM »
From what I have read, the torpedoes used to sink the Belgrano were WW2 style straight running torpedos fired in a spread from about 1400 yards. I believe they were Mk14 Torpedoes.
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Offline Airhead

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« Reply #9 on: January 08, 2003, 09:46:43 PM »
Quote
Originally posted by GScholz
Huh? How did the US bail out the Brits in the Falklands war???


Oh please, it's common knowledge that we provided clandistine military support to the Brits while remaining "officially" neutral. In fact it is rumored that the Brits saw very little action during the Falklands Conflict and the brunt of the fighting was done by American CIA operatives.

Furthermore it has been suggested that the MK48 torpedo that sunk the Argentine cruiser (not a battleship) was launched from an American submarine, not a British one. We just can't take credit for that war victory without pissing off all the United Nations is all.

Offline streakeagle

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« Reply #10 on: January 08, 2003, 09:52:43 PM »
Quote
Originally posted by GScholz
Huh? How did the US bail out the Brits in the Falklands war???


I would not say the U.S. bailed out Britain.

However, I would say that if the U.S. had supplied AIM-9L Sidewinders and satellite intelligence to Argentina rather than Britain, then the outcome could have been much different.

As it was, Argentina did pretty well given that they only had 6 Exocets and had to jury-rig them to even be able to fire them from aircraft (France cut off support before the missiles were made fully operational). If they had gotten the British carrier (they came very close with their daring Exocet sneak attack), the British would have needed a U.S. carrier to save their butts or they would have been slaughtered by Argentine air power.

I must also note that the British submarine force gets the credit for shutting down Argentina's navy. When the Belgrano went down with all hands, none of their other ships even attempted to leave port.
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Offline Dowding (Work)

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Mk. 48 topedo test
« Reply #11 on: January 09, 2003, 03:34:09 AM »
I think Airhead is joking. ;)

BTW, the Argie ship was called the Belgrano. There was controversy at the time in Britain, because she was sailing away from the Islands and was 'out of the combat zone'.

Quote
However, I would say that if the U.S. had supplied AIM-9L Sidewinders and satellite intelligence to Argentina rather than Britain, then the outcome could have been much different.


Yes, and if the US had supplied a couple of tactical nukes to Argentina the outcome would have been much different. What a bizarre point to make. What's the deal with Americans trying to take credit for every damn little thing?

And why should the US support some South American dictatorship against its supposedly 'oldest and most valuable ally'?

Quote
As it was, Argentina did pretty well given that they only had 6 Exocets and had to jury-rig them to even be able to fire them from aircraft (France cut off support before the missiles were made fully operational). If they had gotten the British carrier (they came very close with their daring Exocet sneak attack), the British would have needed a U.S. carrier to save their butts or they would have been slaughtered by Argentine air power.


Yes they did pretty well. They invaded an island right off their coastline belonging to a nation a fraction of the size and several thousand miles of Atlantic Ocean away. They did pretty well apart from the 3000 casualties versus the few hundred British ones. They did pretty well against a British force that had no helicopter transport, was low on supplies and that had to fight a pitched battle after marching 50k in hostile, open terrain.

The fighting was quite brutal. American Mercenaries and American trained Argentinian special forces were present. The American mercenaries were executed according to some accounts ('Excursion to Hell' is a book by a former Para that was the subject of a war crimes investigation after its publication).

The Falklands War was an unmitigated disaster for the Argentinians.
« Last Edit: January 09, 2003, 03:45:26 AM by Dowding (Work) »

Offline Airhead

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Mk. 48 topedo test
« Reply #12 on: January 09, 2003, 11:25:50 AM »
Quote
Originally posted by Dowding (Work)

And why should the US support some South American dictatorship against its supposedly 'oldest and most valuable ally'?


Admittedly it was a tough call, Dowding, but in the end we just didn't have the heart to gang up on those cute little Gouchos. They are all smiley, happy people with strong white teeth, and if they had a dictator it's because they have no voting machines yet.

On the other hand you guys have Beatle.

See what I mean by it being a tough call? :)

Offline Charon

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Mk. 48 topedo test
« Reply #13 on: January 09, 2003, 11:39:51 AM »
Quote
What's the deal with Americans trying to take credit for every damn little thing?


You used the plural here. Aside from Airhead (who doesn't count anyway :)) what other Americans are trying to take credit for the Flaklands victory? And, realistically, Streakeagle does have a point after the chest beating (not that the US would have bailed anybody's butt out on this one). I suppose you could also say... "and if those WW2 500lb bombs carried by the Skyhawks had working fuses more often than not..."

Wasn't the closeness of the Falklands victory (the naval defense and logistics limitations) kind a wake up call in Britain as to the shortcomings of the defense policies in the preceeding decades? Nothing to do with the bravery of the forces, obviously, but to the hardware decisions that had been made. I know the AAR was fairly critical at the time.

[And for some self criticism, just as Pearl Harbor and the opening stages of the Korean War demonstrated failures in US defense policy in similar and different areas.]

Charon
« Last Edit: January 09, 2003, 01:45:23 PM by Charon »

Offline Sikboy

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« Reply #14 on: January 09, 2003, 12:17:35 PM »
Quote
Originally posted by Airhead
Admittedly it was a tough call, Dowding, but in the end we just didn't have the heart to gang up on those cute little Gouchos. They are all smiley, happy people with strong white teeth, and if they had a dictator it's because they have no voting machines yet.

On the other hand you guys have Beatle.

See what I mean by it being a tough call? :)


Dude, everybody knows that Amerikkka supported the fascists in Argentina as part of a focused attempt to usurp all of the honest peace loving governments of south and central America. :mad: Herr Reagan knew that he needed henchmen in the region to help him build his 1000 yearh reich and greater western hemisphere prosperity sphere.:mad: Thank god the Brits were able to put an end to it, before Argentina was able to fight north and link up with the Contras (the moral equivalent of hair on my balls) :mad: :mad: :mad: :mad:
You: Blah Blah Blah
Me: Meh, whatever.