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View Full Version : which sub is quieter... (modern sub)



RAZORSEAL
03-31-2005, 01:31 AM
This is a modern sub question, but I believe diesels are much quieter... lets compare a Western Diesel sub vs the seawolf (quitest nuclear sub)

whic is quieter?

also the the seawolf is rated at 600m for depth FYI heh... take a uboat there lol...

akula's crush depth is 900 meters http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif and they both have max speed of 35 knots underwater...

I didnt know much about subs before, so comparing it to a u boat sounds crazy lol

just like comparing a 109 to a f22 i guess hehe

RAZORSEAL
03-31-2005, 01:31 AM
This is a modern sub question, but I believe diesels are much quieter... lets compare a Western Diesel sub vs the seawolf (quitest nuclear sub)

whic is quieter?

also the the seawolf is rated at 600m for depth FYI heh... take a uboat there lol...

akula's crush depth is 900 meters http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif and they both have max speed of 35 knots underwater...

I didnt know much about subs before, so comparing it to a u boat sounds crazy lol

just like comparing a 109 to a f22 i guess hehe

augie64
03-31-2005, 05:41 AM
well the latest sea wolf class submarine "USS Jimmy Carter" is suposedly even quieter than the Seawolf.

A seawolf is described as being quieter at 25 knots than a los angeles class submarine tied to the pier.

As for Deisel subs the big reason they are so quiet is the battery. Using that they are using less moving parts making it much more quiet to the surounding areas. where as a nuclear boat always has machinery running (turbines, steam moving through pipes)

Bewolf
03-31-2005, 05:54 AM
http://www.naval-technology.com/projects/type_212/

Celeon999
03-31-2005, 07:38 AM
^
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German Type 212

If you put your ear into the sea and you cant hear anything ,it is this sub you hear. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

augie64
03-31-2005, 07:41 AM
that is one nice sub. it just looks quiet.

RAZORSEAL
03-31-2005, 08:33 AM
oh boy, that thing has hydrogen

isnt that very very dangerous ****? http://forums.ubi.com/groupee_common/emoticons/icon_razz.gif

Celeon999
03-31-2005, 08:44 AM
This isnt the Hindenburg ! http://forums.ubi.com/images/smilies/88.gif

That means ....... i hope so http://forums.ubi.com/images/smilies/blink.gif

Capt._Tenneal
03-31-2005, 08:55 AM
Not so much noise as about detection, but I just finished the book A Time To Die about the Kursk sinking and recovery, and when the Norwegians and Brits got there and began (still at that time) rescue operations, they had thought they were in the wrong place because the sub wasn't showing up in their sensors. Turns out the anechoic tiles were doing a good job in "hiding" the sub.

sp3irs
03-31-2005, 08:57 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by augie64:
that is one nice sub. it just looks quiet. <HR></BLOCKQUOTE>

LOL explain how something can look quiet http://forums.ubi.com/images/smilies/88.gif

Simmoxx
03-31-2005, 09:36 AM
good old aussie collins class subs manage to sink the yank capital ships easy enough,everytime we have exercises off the north coast..we got a great record so far ,3 - 0 they havent detected one yet http://forums.ubi.com/images/smilies/34.gif

Johnny_JG2
03-31-2005, 01:46 PM
Seawolf class is, by far, the quietest nuclear sub ever.

I'm not sure if you implied this by your post, but the Akula isn't a diesel/electric sub. The Akula is an excellent sub, though- the latest model is actually a little quieter than a Los Angeles Class submarine- and it's faster, and has some powerful weapons.

Lovo_Kasistan
03-31-2005, 02:00 PM
Good old soviet Alfa class!

The cavitation at over 40 knots should render each sonar deaf. http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

Yellonet
03-31-2005, 02:17 PM
Swedish Gotland class

http://www.1ubflj.mil.se/article.php?id=1353

quillan
03-31-2005, 02:19 PM
Diesel/electrics running on electric are very quiet, but not when running the diesels. I don't know a lot about the Seawolf class, and it would really take a bit to convince me they're quieter than the Ohio class missile subs were. That new German one sounds like it has tremendous potential. I expect the fuel cell makes much less noise than the reactor pump system on nuclear subs.

augie64
03-31-2005, 02:22 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Simmoxx:
good old aussie collins class subs manage to sink the yank capital ships easy enough,everytime we have exercises off the north coast..we got a great record so far ,3 - 0 they havent detected one yet http://forums.ubi.com/images/smilies/34.gif <HR></BLOCKQUOTE>

Heh, they cant find their own subs in wargames either. we rarely lose against the surface fleet.

Bob_Gilroy
03-31-2005, 02:30 PM
"oh boy, that thing has hydrogen

isnt that very very dangerous ****? "

But nuclear reactors never have problems right??

Stefan_246
03-31-2005, 02:31 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Bewolf:
http://www.naval-technology.com/projects/type_212/ <HR></BLOCKQUOTE>

How many renowns will this thing cost http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

Heartland
04-01-2005, 12:56 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Simmoxx:
good old aussie collins class subs manage to sink the yank capital ships easy enough,everytime we have exercises off the north coast..we got a great record so far ,3 - 0 they havent detected one yet http://forums.ubi.com/images/smilies/34.gif <HR></BLOCKQUOTE>

It looks like the Americans may have noticed this. They recently signed a lease deal for a Swedish diesel sub to be used in "agressor" exercises. As noted here: http://www.naval-technology.com/projects/gotland/
"In November 2004, the Swedish Government approved a proposal for the US Navy to lease one of the Gotland Class submarines and crew for one year to participate in naval exercises. The exercises will begin in the first half of 2005. The Gotland submarine will operate in the aggressor role."

I suppose it is no coincidence, as both the Gotland/A19 class and Collins are designed by ****ums here in Sweden.

Celeon999
04-01-2005, 02:38 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Seawolf class is, by far, the quietest nuclear sub ever. <HR></BLOCKQUOTE>

The quietest "nuclear" sub thats true. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif
I heard that the 212 has made a new world record in depth diving. But somehow it cannot go to ******ss for now because the exact depth is top secret. http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif

Must have been deeper than most sub guys ever want to get http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

Trink_Afri-Cola
04-01-2005, 06:17 PM
I heard the new German

U 31 Klasse U212A is very quiet, its fuel cell.

Timon_NL
04-01-2005, 07:13 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Celeon999:
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Seawolf class is, by far, the quietest nuclear sub ever. <HR></BLOCKQUOTE>

The quietest "nuclear" sub thats true. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif
I heard that the 212 has made a new world record in depth diving. But somehow it cannot go to ******ss for now because the exact depth is top secret. http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif

Must have been deeper than most sub guys ever want to get http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif <HR></BLOCKQUOTE>

Well I don't think no one has ever dived deeper with a sub than Jacques Piccard and Lieutenant Donald Walsh of the U.S. Navy, they dived 11 km deep with their own designed sub called "Bathyscaphe"!
Here's a pic http://images.encarta.msn.com/xrefmedia/sharemed/targets/images/pho/t047/T047458A.jpg

Read more here: info (http://encarta.msn.com/encnet/refpages/RefArticle.aspx?refid=761573707)

Captain America
04-01-2005, 07:31 PM
I thought that the Kilo Improved (Project 636) was the quietest sub around....

msxyz
04-02-2005, 12:12 AM
Diesel subs while slower and with limited underwater range are much quiter than nuclear powered submarines. Understand this: on a conventional submarine the only thing making noise is a low RPM electric motor and you can even decide to stop it if you think you're under scrutiny by a nearby ostile force. A nuclear reactor never stops as well as its cooling pumps not to mention the huge heat trail it leaves in the water.

A modern diesel electric submarine with a pressure hull made of austenitic alloy and covered with rubber tiles is almost invisible both to sonar (passive/active) and MAD detectors.

That's why the russian never stopped to build them and their 636 Kilo class is one of the best of the world and managed also to undercut the market share of the otherwise excellent german designs.

Celeon999
04-02-2005, 12:32 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Well I don't think no one has ever dived deeper with a sub than Jacques Piccard and Lieutenant Donald Walsh of the U.S. Navy, they dived 11 km deep with their own designed sub called "Bathyscaphe"! <HR></BLOCKQUOTE>

I know http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

I mean a new world record for a military sub. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif