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RE: Best Designed Ship of WWII - 6/30/2008 3:19:58 AM   
mikemike

 

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quote:

ORIGINAL: rtrapasso


i AM curious how the same engine that was (according to the above) put on the Type IX could recharge a bigger battery in shorter time than the more conventional sub... this actually contradicts what i've read about the XXI...

Were the 6 hours 12 minutes made without moving? (which would seem to be a detriment to survival and would imply around a 12 hour 24 minute if they usual practice of 1/2 output to recharge and 1/2 to propulsion)... or did they have some other trick?




Those 6.2 hours were achieved with both diesels driving just the generators, while the boat was running submerged on the silent running motors at about six knots. (The silent running motors ("Schleichfahrtmotoren") were two 113 HP electric motors driving the propeller shafts via V-belts, maximum speed about 6.5 kts. When running on these auxiliary motors, the boats made practically no noise. Submerged range was 256 nm at 6 kts and 487 nm at 3 kts). Charging time on the surface, stopped, was 2.5 hrs. The explanation for the comparatively fast recharging was apparently this diesel-electric operating mode, where the full power of the diesels was used for charging and the boat was driven by the very economical auxiliary motors.

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(in reply to rtrapasso)
Post #: 181
RE: Best Designed Ship of WWII - 6/30/2008 9:05:12 AM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
Hi all,

quote:

ORIGINAL: rtrapasso

i'll also point out the snorkels, while often perceived as a solution to the recharge problem, left the sub pretty much blind and deaf while running the diesels. Allied radar had improved to where they could detect the snorkel masts - and if detected the U-boat could be attacked and destroyed, sometimes before they even had an inkling that they were in imminent danger.


IMHO, Robert, snorkel was no "miracle" solution but it was 100x better having snorkel than having submarine fully surfaced.

As for allied radar and sonar in WWII - the best case scenarios are just theoretical and periscope and/or snorkel are still hard to find even with today's equipment - I don't believe the "fairy tale stories" of WWII allied equipment managing to detect periscope / snorkel at several miles!

BTW, in 1982, the NATO's best ASW force (i.e. UK Navy) went to war with Argentina over Falklands. They had helicopters, sonar, radars and all kind of other equipment made 30+ years after the WWII and yet they were on constant alert over one single Argentinean diesel powered submarine (German made descendent of type XXI ) that they never caught...


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

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(in reply to rtrapasso)
Post #: 182
RE: Best Designed Ship of WWII - 6/30/2008 9:20:39 AM   
Dixie


Posts: 10303
Joined: 3/10/2006
From: UK
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quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

i'll also point out the snorkels, while often perceived as a solution to the recharge problem, left the sub pretty much blind and deaf while running the diesels. Allied radar had improved to where they could detect the snorkel masts - and if detected the U-boat could be attacked and destroyed, sometimes before they even had an inkling that they were in imminent danger.


IMHO, Robert, snorkel was no "miracle" solution but it was 100x better having snorkel than having submarine fully surfaced.

As for allied radar and sonar in WWII - the best case scenarios are just theoretical and periscope and/or snorkel are still hard to find even with today's equipment - I don't believe the "fairy tale stories" of WWII allied equipment managing to detect periscope / snorkel at several miles!

BTW, in 1982, the NATO's best ASW force (i.e. UK Navy) went to war with Argentina over Falklands. They had helicopters, sonar, radars and all kind of other equipment made 30+ years after the WWII and yet they were on constant alert over one single Argentinean diesel powered submarine (German made descendent of type XXI ) that they never caught...


Leo "Apollo11"


Do you mean the Santa Fe? Which they did catch, although she was on the surface at the time.

Or the San Luis?

< Message edited by Dixie -- 6/30/2008 9:21:31 AM >


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Post #: 183
RE: Best Designed Ship of WWII - 6/30/2008 9:24:37 AM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
Hi all,

quote:

ORIGINAL: Dixie

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

i'll also point out the snorkels, while often perceived as a solution to the recharge problem, left the sub pretty much blind and deaf while running the diesels. Allied radar had improved to where they could detect the snorkel masts - and if detected the U-boat could be attacked and destroyed, sometimes before they even had an inkling that they were in imminent danger.


IMHO, Robert, snorkel was no "miracle" solution but it was 100x better having snorkel than having submarine fully surfaced.

As for allied radar and sonar in WWII - the best case scenarios are just theoretical and periscope and/or snorkel are still hard to find even with today's equipment - I don't believe the "fairy tale stories" of WWII allied equipment managing to detect periscope / snorkel at several miles!

BTW, in 1982, the NATO's best ASW force (i.e. UK Navy) went to war with Argentina over Falklands. They had helicopters, sonar, radars and all kind of other equipment made 30+ years after the WWII and yet they were on constant alert over one single Argentinean diesel powered submarine (German made descendent of type XXI ) that they never caught...


Do you mean the Santa Fe? Which they did catch, although she was on the surface at the time.

Or the San Luis?


ARA San Luis was never caught (nor detected) although we know that it was there (from her logs made public after the Falklands war)...


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

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P: UV, WitP, WitP-AE

(in reply to Dixie)
Post #: 184
RE: Best Designed Ship of WWII - 6/30/2008 12:59:17 PM   
Dili

 

Posts: 4708
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quote:

You said torpedo hits produce the same hole in the same location every time. Except that it doesn't.


So if the hole was different in Taranto all was well and good? Well what you say is truth but within limits. If not, you can never reach any conclusion because an hit in same place can have very different results precluding any conclusion.

quote:


So in other words your saying parrot whatever you read online and don't think for yourself? Subsequent torpedo hits did not all come out rosy for this class either.


I didnt read "online" i presented the source and you invent that i have read online. So i am supposed to ignore that the "sirvizio de sicurezza a bordo" was "tutto restudiato" and "strutura stagne" verified because "Comandi e Direzione technica" was alarmed that water reached places adjacent from those hit. And that subsequently the problem as never repeated?

quote:

Subsequent torpedo hits did not all come out rosy for this class either.


?! What came different in other hits against similar ships? see above.


quote:

Because no Littorio class vessel absorbed 3 torpedo hits at one time after Taranto.


Yes, but what made it a problem was the most front one. Neither you account for the fact that wasnt even attempted to counter flooding.

quote:

So your not going to answer the question?


It was implicit but you are right i should have answered. I think a good ship(includes Littorio but not the Bismarck) is able to maneuver in sea state that i saw in pictures Bismarck was on when hit. Littorio certainly because it has also the auxiliary rudders. Of course with degraded performance.


quote:

Your the first person i've read say that Bismarck's rudder, then rudder(S) were "Tiny" which implies they were inadequate even when functioning. I was curious as to the source of such a claim, thus I asked simply, how do her rudders compare in size to her contemporaries? Your reply is that my "evidence is nil" yet your the one who made the implication.


You made the implication that 2 auxiliary rudders plus one main rudder were worse than a ship with two rudders like Bismarck maneuverality wise without any evidence to support it. I posted the area the Littorio rudders had, you should came up with area of Bismarck rudders to establish your point.
For your information the cumulative rudder area of Bismarck was 48,4m2 and of Littorio 70m2.

The reference to a critic of rudders size came Boyne, Walter J., Clash of Titans: World War II at Sea (New York, Simon & Schuster, 1995), 55. per Wikipedia entry http://en.wikipedia.org/wiki/Bismarck_class_battleship see point 14-15.


quote:

I know that Bismarck was an excellent seaboat with excellent stability that made her a very good gun platform even in the heavy swells of the Atlantic. This was more than a minor factor in her victory over HMS Hood and in striking PoW several times. You can call her difficulties via properllors alone a flaw though i don't consider it a major one anymore than with her steering arrangements.


That is not what i am saying, which is maneuverality and capability to change course. Stability was a strong asset of Bismarck, some even say too much because precisely of implications for maneuverality.
But my main problem is that the whole propeller/rudder was so closely placed.


(in reply to Nikademus)
Post #: 185
RE: Best Designed Ship of WWII - 6/30/2008 1:36:08 PM   
rtrapasso


Posts: 22653
Joined: 9/3/2002
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quote:

ORIGINAL: mikemike


quote:

ORIGINAL: rtrapasso


i AM curious how the same engine that was (according to the above) put on the Type IX could recharge a bigger battery in shorter time than the more conventional sub... this actually contradicts what i've read about the XXI...

Were the 6 hours 12 minutes made without moving? (which would seem to be a detriment to survival and would imply around a 12 hour 24 minute if they usual practice of 1/2 output to recharge and 1/2 to propulsion)... or did they have some other trick?




Those 6.2 hours were achieved with both diesels driving just the generators, while the boat was running submerged on the silent running motors at about six knots. (The silent running motors ("Schleichfahrtmotoren") were two 113 HP electric motors driving the propeller shafts via V-belts, maximum speed about 6.5 kts. When running on these auxiliary motors, the boats made practically no noise. Submerged range was 256 nm at 6 kts and 487 nm at 3 kts). Charging time on the surface, stopped, was 2.5 hrs. The explanation for the comparatively fast recharging was apparently this diesel-electric operating mode, where the full power of the diesels was used for charging and the boat was driven by the very economical auxiliary motors.


OK - so it was 100% diesel to the generators...
BTW - if you are running your diesels - you are no longer "silent running"...



< Message edited by rtrapasso -- 6/30/2008 1:40:55 PM >

(in reply to mikemike)
Post #: 186
RE: Best Designed Ship of WWII - 6/30/2008 1:42:11 PM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
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Hi all,

quote:

ORIGINAL: rtrapasso

As for the Argentine subs: AFAIK - they were trying to avoid the Brits, not attack them... did they make any attempts to attack the British fleet? AFAIK - no (although i am not sure the British were aware of this.)

Trying to search out subs over 1000's of square miles of ocean when they are trying not to be found is a different proposition than finding a sub that is coming after you.

If the Argentine subs had gone after the British fleet, it might have been different story. The German Navy in WW2 could not just build subs and then make them hide to try to prosecute the war.


In books (and other meterial I found) I read that ARA San Luis did indeed tried to attack the British fleet on several occassions and that it did even fire torpedo(es) but they missed or were malfunctioning...


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE

(in reply to rtrapasso)
Post #: 187
RE: Best Designed Ship of WWII - 6/30/2008 1:46:21 PM   
rtrapasso


Posts: 22653
Joined: 9/3/2002
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quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

As for the Argentine subs: AFAIK - they were trying to avoid the Brits, not attack them... did they make any attempts to attack the British fleet? AFAIK - no (although i am not sure the British were aware of this.)

Trying to search out subs over 1000's of square miles of ocean when they are trying not to be found is a different proposition than finding a sub that is coming after you.

If the Argentine subs had gone after the British fleet, it might have been different story. The German Navy in WW2 could not just build subs and then make them hide to try to prosecute the war.


In books (and other meterial I found) I read that ARA San Luis did indeed tried to attack the British fleet on several occassions and that it did even fire torpedo(es) but they missed or were malfunctioning...


Leo "Apollo11"

Sorry - you quoted me before i revised my post (about 30 seconds after i posted originally...)

REEDIT - i had just found the quotes about two attacks right after posting (i had't heard of them before).

< Message edited by rtrapasso -- 6/30/2008 1:47:56 PM >

(in reply to Apollo11)
Post #: 188
RE: Best Designed Ship of WWII - 6/30/2008 1:48:00 PM   
Dixie


Posts: 10303
Joined: 3/10/2006
From: UK
Status: offline

quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

As for the Argentine subs: AFAIK - they were trying to avoid the Brits, not attack them... did they make any attempts to attack the British fleet? AFAIK - no (although i am not sure the British were aware of this.)

Trying to search out subs over 1000's of square miles of ocean when they are trying not to be found is a different proposition than finding a sub that is coming after you.

If the Argentine subs had gone after the British fleet, it might have been different story. The German Navy in WW2 could not just build subs and then make them hide to try to prosecute the war.


In books (and other meterial I found) I read that ARA San Luis did indeed tried to attack the British fleet on several occassions and that it did even fire torpedo(es) but they missed or were malfunctioning...


Leo "Apollo11"


She was around Falkland sound and launched an attack on HMS Arrow and HMS Alacrity, IIRC the attack was foiled by decoys and a malfunction. She also tried attacking HMS Brilliant (?) but missed. The Argentine Navy only had two subs, and one of those was put out of action during the South Georgia operation, their presence was a big problem for the RN during the campaign.

Even more OT: I have read that a well handled diesel sub is a lot more difficult to detect than an equivelent nuclear powered one, can anyone out there confirm this?

_____________________________



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Post #: 189
RE: Best Designed Ship of WWII - 6/30/2008 1:50:27 PM   
rtrapasso


Posts: 22653
Joined: 9/3/2002
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quote:

ORIGINAL: Dixie




Even more OT: I have read that a well handled diesel sub is a lot more difficult to detect than an equivelent nuclear powered one, can anyone out there confirm this?



i've also read that - IF THEY ARE NOT SNORKELING they are extremely hard to find...

i don't have any idea of whether the San Luis was snorkeling anywhere near the Brits, or for that matter if she snorkeled at all during the operation... she could have recharged on the surface for all i know.

< Message edited by rtrapasso -- 6/30/2008 1:52:19 PM >

(in reply to Dixie)
Post #: 190
RE: Best Designed Ship of WWII - 6/30/2008 2:03:44 PM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
HI all,

quote:

ORIGINAL: Dixie

Even more OT: I have read that a well handled diesel sub is a lot more difficult to detect than an equivelent nuclear powered one, can anyone out there confirm this?


That is correct.

The nuclear powered submarine must always run the pumps to cool the reactor(s).

The diesel powered submarine under water is very quiet because it runs only on battery...


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE

(in reply to Dixie)
Post #: 191
RE: Best Designed Ship of WWII - 6/30/2008 2:04:45 PM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
Hi all,

quote:

ORIGINAL: rtrapasso

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

As for the Argentine subs: AFAIK - they were trying to avoid the Brits, not attack them... did they make any attempts to attack the British fleet? AFAIK - no (although i am not sure the British were aware of this.)

Trying to search out subs over 1000's of square miles of ocean when they are trying not to be found is a different proposition than finding a sub that is coming after you.

If the Argentine subs had gone after the British fleet, it might have been different story. The German Navy in WW2 could not just build subs and then make them hide to try to prosecute the war.


In books (and other meterial I found) I read that ARA San Luis did indeed tried to attack the British fleet on several occassions and that it did even fire torpedo(es) but they missed or were malfunctioning...


Sorry - you quoted me before i revised my post (about 30 seconds after i posted originally...)

REEDIT - i had just found the quotes about two attacks right after posting (i had't heard of them before).


RGR that Robert!


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE

(in reply to rtrapasso)
Post #: 192
RE: Best Designed Ship of WWII - 6/30/2008 2:11:45 PM   
rtrapasso


Posts: 22653
Joined: 9/3/2002
Status: offline
quote:

ORIGINAL: Dixie

quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

i'll also point out the snorkels, while often perceived as a solution to the recharge problem, left the sub pretty much blind and deaf while running the diesels. Allied radar had improved to where they could detect the snorkel masts - and if detected the U-boat could be attacked and destroyed, sometimes before they even had an inkling that they were in imminent danger.


IMHO, Robert, snorkel was no "miracle" solution but it was 100x better having snorkel than having submarine fully surfaced.

As for allied radar and sonar in WWII - the best case scenarios are just theoretical and periscope and/or snorkel are still hard to find even with today's equipment - I don't believe the "fairy tale stories" of WWII allied equipment managing to detect periscope / snorkel at several miles!

BTW, in 1982, the NATO's best ASW force (i.e. UK Navy) went to war with Argentina over Falklands. They had helicopters, sonar, radars and all kind of other equipment made 30+ years after the WWII and yet they were on constant alert over one single Argentinean diesel powered submarine (German made descendent of type XXI ) that they never caught...


Leo "Apollo11"


Do you mean the Santa Fe? Which they did catch, although she was on the surface at the time.

Or the San Luis?



Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!

< Message edited by rtrapasso -- 6/30/2008 2:24:24 PM >

(in reply to Dixie)
Post #: 193
RE: Best Designed Ship of WWII - 6/30/2008 2:13:38 PM   
Nikademus


Posts: 25684
Joined: 5/27/2000
From: Alien spacecraft
Status: offline
quote:

ORIGINAL: Dili

So if the hole was different in Taranto all was well and good? Well what you say is truth but within limits. If not, you can never reach any conclusion because an hit in same place can have very different results precluding any conclusion.


Results can be different per result which is why it is unwise to make black and white statements about a ship class being flawed based on one incident which is what i've been saying all along.
quote:


I didnt read "online" i presented the source and you invent that i have read online. So i am supposed to ignore that the "sirvizio de sicurezza a bordo" was "tutto restudiato" and "strutura stagne" verified because "Comandi e Direzione technica" was alarmed that water reached places adjacent from those hit. And that subsequently the problem as never repeated?


Online or book read, the question remains the same. Do you simply parrot whatever source you can find and don't think for yourself? If your trying to tell me that the Italian HC report blamed the crew entirely for the damage at Taranto, then I can certainly choose to disagree based on examining other source material. As for the problem never repeating, if by that you mean large scale flooding, such a thing did occur again.


quote:


Yes, but what made it a problem was the most front one. Neither you account for the fact that wasnt even attempted to counter flooding.


Because the ship grounded naturally. Had the ship been out to sea, especially in conditions present for KM Bismarck, there certainly would have been counterflooding which would have hopefully negated the bow submerging completely but would also have reduced freeboard overall making escape more difficult. I believe i mentioned that.

quote:


It was implicit but you are right i should have answered. I think a good ship(includes Littorio but not the Bismarck) is able to maneuver in sea state that i saw in pictures Bismarck was on when hit. Littorio certainly because it has also the auxiliary rudders. Of course with degraded performance.


Ok...at least you finally answered the question. I still disagree. Maneuvering on props only for example in such a sea state and with damage as Bismarck already had would be difficult for any other ship class as well. A key aspect of the question was also; "would it be able to maneuver enough to escape?"

quote:


You made the implication that 2 auxiliary rudders plus one main rudder were worse than a ship with two rudders like Bismarck maneuverality wise without any evidence to support it.


Its not an implication. Statement of fact via Garzke and to be precise, the statement was, a traditional two rudder system provides greater maneuverability, all things being equal vs a single rudder with an aux rudder system. The Italians were willing to accept this trade off because they wanted better redundancy of systems. You said you felt that Bismarck was "Flawed" because the Germans should have "known better" so why did they do it. It appears they did it for the same reason other nations did.

quote:


I posted the area the Littorio rudders had, you should came up with area of Bismarck rudders to establish your point.
For your information the cumulative rudder area of Bismarck was 48,4m2 and of Littorio 70m2.

The reference to a critic of rudders size came Boyne, Walter J., Clash of Titans: World War II at Sea (New York, Simon & Schuster, 1995), 55. per Wikipedia entry http://en.wikipedia.org/wiki/Bismarck_class_battleship see point 14-15.


The actual question was, how did Bismarck's primary rudders compare in size to those of other BB's such as KGV and North Carolina's main rudders. Thank you for the reference. Wikipedia.....great. I note that the article claims Bismarck's rudders made her not maneuverable enoughl based solely on the fact that she was hit in the rudders by a single torpedo during the Pursuit! That to me is hardly convincing proof. One could make the same criticism of Prince of Wales, or when the Veneto was stopped dead in the water by a single torp hit. I'll go with my book sources on this and none support this assertation.

quote:


That is not what i am saying, which is maneuverality and capability to change course. Stability was a strong asset of Bismarck, some even say too much because precisely of implications for maneuverality.



If for the sake of argument, Bismarck could be considered less maneuverable than some then as with the other elements discussed it is not due to "design FLAW" but rather more to priority on what the designers felt was more important. A steady, stable warship able to shoot accurately and absorb serious punishment are no less vital factors than overall maneuverability.

quote:


But my main problem is that the whole propeller/rudder was so closely placed.


Thats fine. My point is that despite this close proximity, which was not all that different from other classes (KGV for example) , it is neither a gurantee that a hit will disable all the systems (which did not occur in Bismarck's case) nor will a more dispersed arrangement gurantee that it won't. If Bismarck's steering arrangements were less than optimal, and this is still being debated to this day, it was not a major source of weakness since essentially all warships are vulnerable to stern hits. Hence I do not agree with the opinion that Bismarck was a "Flawed" ship. She was not most powerful battleship built but she was a good fighting ship.





< Message edited by Nikademus -- 6/30/2008 2:16:12 PM >


_____________________________


(in reply to Dili)
Post #: 194
RE: Best Designed Ship of WWII - 6/30/2008 2:45:17 PM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
Hi all,

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


Leo "Apollo11"

_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE

(in reply to rtrapasso)
Post #: 195
RE: Best Designed Ship of WWII - 6/30/2008 3:15:46 PM   
rtrapasso


Posts: 22653
Joined: 9/3/2002
Status: offline

quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


Leo "Apollo11"


And any success she MIGHT have had was largely done in by defective torpedoes... hmmm... history lessons, anyone??

(in reply to Apollo11)
Post #: 196
RE: Best Designed Ship of WWII - 6/30/2008 3:39:02 PM   
hawker


Posts: 849
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From: Split,Croatia
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quote:

Thats fine. My point is that despite this close proximity, which was not all that different from other classes (KGV for example) , it is neither a gurantee that a hit will disable all the systems (which did not occur in Bismarck's case) nor will a more dispersed arrangement gurantee that it won't. If Bismarck's steering arrangements were less than optimal, and this is still being debated to this day, it was not a major source of weakness since essentially all warships are vulnerable to stern hits. Hence I do not agree with the opinion that Bismarck was a "Flawed" ship. She was not most powerful battleship built but she was a good fighting ship.


Amen

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Post #: 197
RE: Best Designed Ship of WWII - 6/30/2008 4:28:40 PM   
Apollo11


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Hi all,

quote:

ORIGINAL: rtrapasso

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


And any success she MIGHT have had was largely done in by defective torpedoes... hmmm... history lessons, anyone??


The British Conqueror used old WWII era torpedoes types to sink the cruiser ARA Belgrano... they simply didn't think that modern torpedo would be able to kill WWII ex USN cruiser or they didn't thibk it would gude OK (and it was more "apropriate" to kill old WWII ship with old WWII styletorpedoes)...


Leo "Apollo11"

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Post #: 198
RE: Best Designed Ship of WWII - 6/30/2008 4:43:56 PM   
rtrapasso


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quote:

ORIGINAL: Apollo11

Hi all,

quote:

ORIGINAL: rtrapasso

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


And any success she MIGHT have had was largely done in by defective torpedoes... hmmm... history lessons, anyone??


The British Conqueror used old WWII era torpedoes types to sink the cruiser ARA Belgrano... they simply didn't think that modern torpedo would be able to kill WWII ex USN cruiser or they didn't thibk it would gude OK (and it was more "apropriate" to kill old WWII ship with old WWII styletorpedoes)...


Leo "Apollo11"


i've read (some years ago, and who knows how the story has changed since then) that the Brits were actually shooting the the aircraft carrier... and that the General Belgrano got in the way...

(in reply to Apollo11)
Post #: 199
RE: Best Designed Ship of WWII - 6/30/2008 4:54:13 PM   
Apollo11


Posts: 24082
Joined: 6/7/2001
From: Zagreb, Croatia
Status: offline
Hi all,

quote:

ORIGINAL: rtrapasso

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

quote:

ORIGINAL: Apollo11

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


And any success she MIGHT have had was largely done in by defective torpedoes... hmmm... history lessons, anyone??


The British Conqueror used old WWII era torpedoes types to sink the cruiser ARA Belgrano... they simply didn't think that modern torpedo would be able to kill WWII ex USN cruiser or they didn't thibk it would gude OK (and it was more "apropriate" to kill old WWII ship with old WWII styletorpedoes)...


i've read (some years ago, and who knows how the story has changed since then) that the Brits were actually shooting the the aircraft carrier... and that the General Belgrano got in the way...


Don't thik so... I read the battle log of the Conqueror in one book... there were just one old WWII cruiser (nonetheless with guns larger than anything modern tincans can withstand - no wonder that old CA was a threat) and 2 destroyers...


Leo "Apollo11"


_____________________________



Prior Preparation & Planning Prevents Pathetically Poor Performance!

A & B: WitW, WitE, WbtS, GGWaW, GGWaW2-AWD, HttR, CotA, BftB, CF
P: UV, WitP, WitP-AE

(in reply to rtrapasso)
Post #: 200
RE: Best Designed Ship of WWII - 6/30/2008 4:56:32 PM   
Dixie


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quote:

ORIGINAL: rtrapasso

i've read (some years ago, and who knows how the story has changed since then) that the Brits were actually shooting the the aircraft carrier... and that the General Belgrano got in the way...


Seperate subs mate. I believe that it was HMS Spartan which was stalking the ARA Veinticinco de Mayo, but the weather prevented an attack. Splendid had been stalking the carrier for some time but had not got into an attack position, by the time she had moved into a position to confirm the target heavy fog had come down. IIRC the carrier was (just about) inside Argentinian waters, but Conqueror was outside the limits so her captain felt that an attack would be viable. ARA Veinticinco de Mayo and ARA General Belgrano were in seperate task forces that were part of a pincer movement.

This is what I remember from Vulcan 607, which has a broad overview of the naval war up to Black Buck 1 so it may be incorrect in places.

EDIT: Belgrano was being escorted by two Type 42 Frigates, IIRC 25 Mayo was escorted by US built destroyers (Sumner CLass?) or the '42s were with the carrier and the Sumners with Belgrano.

< Message edited by Dixie -- 6/30/2008 5:02:03 PM >


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Post #: 201
RE: Best Designed Ship of WWII - 6/30/2008 5:36:53 PM   
BrucePowers


Posts: 12094
Joined: 7/3/2004
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quote:

ORIGINAL: Apollo11

HI all,

quote:

ORIGINAL: Dixie

Even more OT: I have read that a well handled diesel sub is a lot more difficult to detect than an equivelent nuclear powered one, can anyone out there confirm this?


That is correct.

The nuclear powered submarine must always run the pumps to cool the reactor(s).

The diesel powered submarine under water is very quiet because it runs only on battery...


Leo "Apollo11"


Yeah, but a nuclear boat under water is a lot faster than a diesel boat. Granted doesn't help as mnuch against a helo or a P-3 or the upcoming P-8. Speed does help.

< Message edited by BrucePowers -- 6/30/2008 5:37:25 PM >

(in reply to Apollo11)
Post #: 202
RE: Best Designed Ship of WWII - 6/30/2008 6:10:17 PM   
mikemike

 

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You remember correctly. 25 de Mayo was in TF 79.1, appoachimg the Falklands from the north, while Belgrano, escorted by ex-Sumners Bouchard and Piedrabuena (TF79.4) were east of Staten Island. These ships all carried EXOCET ASMs. The fear was that the Belgrano group might have changed course and run in towards the RN task force, across the shallow waters of the Burdwood Bank, where HMS Conqueror would have found it hard to follow (the Argentine ships could have outrun her in any case), and could have reached the Task Force at about dawn, ready to fire their missiles. If you remember what has been said in this forum about the gun fire of the Brooklyns, and considering that by WWII standards, the RN Task Force consisted essentially of two large CVEs, escorted by some DEs, an ably led and properly operated Belgrano might have shredded the Task Force with her guns alone. Fortunately for the RN, the Argentine Navy seems to have had inept officers throughout.

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Post #: 203
RE: Best Designed Ship of WWII - 6/30/2008 6:15:54 PM   
Historiker


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It was always funny for me, that the Argenitians complaied the Belgrano was sunk outside the 200 miles zone.
If you start a war, you shouldn't complain getting your ships sunk...


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Post #: 204
RE: Best Designed Ship of WWII - 6/30/2008 6:36:57 PM   
Shark7


Posts: 7937
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quote:

ORIGINAL: mikemike

You remember correctly. 25 de Mayo was in TF 79.1, appoachimg the Falklands from the north, while Belgrano, escorted by ex-Sumners Bouchard and Piedrabuena (TF79.4) were east of Staten Island. These ships all carried EXOCET ASMs. The fear was that the Belgrano group might have changed course and run in towards the RN task force, across the shallow waters of the Burdwood Bank, where HMS Conqueror would have found it hard to follow (the Argentine ships could have outrun her in any case), and could have reached the Task Force at about dawn, ready to fire their missiles. If you remember what has been said in this forum about the gun fire of the Brooklyns, and considering that by WWII standards, the RN Task Force consisted essentially of two large CVEs, escorted by some DEs, an ably led and properly operated Belgrano might have shredded the Task Force with her guns alone. Fortunately for the RN, the Argentine Navy seems to have had inept officers throughout.


As a side note, who knows which name the General Belgrano held while in service of the US Navy? (just a little trivia test here)

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Post #: 205
RE: Best Designed Ship of WWII - 6/30/2008 6:44:59 PM   
mikemike

 

Posts: 501
Joined: 6/3/2004
From: a maze of twisty little passages, all different
Status: offline
quote:

ORIGINAL: Apollo11
Hi all,

quote:

ORIGINAL: rtrapasso

Reading more on this matter: ARA Santa Fe was damaged by ASW helicopters using depth charges, as well as being attacked by Mk 46 torpedo... not sure from the brief report where she was (surface or submerged) when originally attacked with the DCs, although she was on definitely on the surface and attacked by helicopters with machine guns and AS-12 missiles. i suspect Dixie is correct: that she was probably on the surface the entire time.

She was badly damaged and surrendered to the Brits, who scuttled her after the fighting.

EDIT: From trying to read the Spanish Language Wiki: apparently ARA Santa Fe had just finished landing supplies and troops on a Sub Transport Mission!!


The caught on surface and destroyed ARA Santa Fe was on "Submarine Transport" missions - it was old USA WWII boat IIRC.

The new German build ARA San Luis was something else... this was the submarine British feared...


Leo "Apollo11"


ARA Santa Fe, a Balao classs GUPPY IA, had run troops into Grytviken, South Georgia. The British South Georgia task group knew she was in the area and set about hunting her down with helicopters. A Wessex from HMS Antrim found her running on the surface and attacked with two Mark XI depth charges set for shallow explosion. These did no serious damage, and the boat could still have dived, but its commander didn't dare do so because he was afraid the helicopter might use homing torpedos, and turned back towards Grytviken. Wasps from HMS Endurance fired two AS-12 wire-guided missiles; one bounced off the pressure hull and the other passed through the sail, doing little damage but taking the legs off a machine gunner. The sub was still not seriously damaged, but fear of homing torpedos kept it on the surface, the captain conning it into Grytviken by periscope from the control room. The sub tied up at the pier in Grytviken and was quickly evacuated by the crew, more a victim of inept handling (the hallmark of the ARA in this conflict) than enemy action.

The Type 209/1 subs San Luis and Salta were dismissed by the RN as "small, hardly ocean-going, best suited to inshore, fairly static operations", at least as Adm. Woodward (a former submariner) recalls. This might have been a dangerous underestimation had the subs been properly fought and had their wire-guided torps been more reliable. Echoes of WWII, indeed - HMS Conqueror didn't trust its Tigershark wire-guided torps, either, so used Mark VIII**, essentially WWII torpedos. The Argentine boats, with their swim-out tubes, couldn't easily fall back on steam torpedos; they might have had US Mk 37 torpedos which also weren't battle-proven.




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Post #: 206
RE: Best Designed Ship of WWII - 6/30/2008 6:50:30 PM   
mikemike

 

Posts: 501
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quote:

ORIGINAL: Shark7

As a side note, who knows which name the General Belgrano held while in service of the US Navy? (just a little trivia test here)


General Belgrano was originally USS Phoenix, present in Pearl Harbor during the attack. Later flagship of Adm. Kinkaid, the commander of MacArthur's navy. Gen. MacArthur was on board for extended periods.

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Post #: 207
RE: Best Designed Ship of WWII - 6/30/2008 7:00:24 PM   
Historiker


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Well, I guess I know whom to ask if I need some informations about subs... 

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Post #: 208
RE: Best Designed Ship of WWII - 6/30/2008 7:02:12 PM   
Shark7


Posts: 7937
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quote:

ORIGINAL: mikemike


quote:

ORIGINAL: Shark7

As a side note, who knows which name the General Belgrano held while in service of the US Navy? (just a little trivia test here)


General Belgrano was originally USS Phoenix, present in Pearl Harbor during the attack. Later flagship of Adm. Kinkaid, the commander of MacArthur's navy. Gen. MacArthur was on board for extended periods.


Right, you guys are fast. LOL

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Post #: 209
RE: Best Designed Ship of WWII - 6/30/2008 7:02:44 PM   
mikemike

 

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quote:

ORIGINAL: rtrapasso


OK - so it was 100% diesel to the generators...
BTW - if you are running your diesels - you are no longer "silent running"...



But if you don't run the diesels, you certainly are (which was the intention). The Type XXI's may have been the first class of submarines deliberately optimized for silent running, with their auxiliary motors and large, slow-turning props, whose blades were deliberately shaped to minimize flow noise and cavitation (absolutely no cavitation below 130 rpm = maximum speed for the silent-running motors). They would have been immune to the MK 24 homing torpedo, whose seeker head was too insensitive.

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