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Shanghai to San Francisco in 100 minutes by Chinese supersonic submarine
South China Morning Post ^ | Sunday, 24 August, 2014 | Stephen Chen

Posted on 08/24/2014 6:00:06 AM PDT by sukhoi-30mki

click here to read article


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To: Disambiguator

Yes, super cavitation is indeed not new.

Perfecting it for either sub surface transportation, or as supercavitating torpedoes with any significant range remains a critical engineering challenge

The successful accomplishment of doing just that was a big part, as you know, of my:

Dragon’s Fury: World War against America and the West
http://www.amazon.com/Dragons-Fury-World-against-America/dp/0971577900

novel


41 posted on 08/24/2014 7:45:33 AM PDT by Jeff Head (Semper Fidelis - Molon Labe - Sic Semper Tyrannis)
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To: P.O.E.

the generic picture I supplied is the exact model I had....er HAVE.

my son now owns it. it is from late 50s early 60s. had to replace the rubber band propulsion system a few times.


42 posted on 08/24/2014 7:50:42 AM PDT by Vaquero (Don't pick a fight with an old guy. If he is too old to fight, he'll just kill you.)
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To: sukhoi-30mki

Will this mean the end of “a slow boat to China” phrase?


43 posted on 08/24/2014 7:52:53 AM PDT by HandyDandy (Started out with Burgundy but soon hit the harder stuff....)
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To: dinodino

Hmm, interesting since that contradicts the article’s claims that it is a new development that you can now guide things which are using super-cavitation.


44 posted on 08/24/2014 8:19:21 AM PDT by drbuzzard (All animals are created equal, but some are more equal than others.)
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To: fso301

Yes, that would certainly seem to be a pretty obvious arrow. Though at 100 miles out, you do have some time to run (certainly more time to run when launching at 10 miles and unless I understand poorly, that usually gives you away as well).

From the article it says you have to start with a large velocity, so the option of a quiet launch and then run before it gets up to ludicrous speed isn’t there.


45 posted on 08/24/2014 8:21:54 AM PDT by drbuzzard (All animals are created equal, but some are more equal than others.)
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To: drbuzzard

It would have to travel at almost 4000 mph. Quite a feat underwater.


46 posted on 08/24/2014 8:27:36 AM PDT by cmwy
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To: cmwy

They claim the speed of sound in water in the article.

Looking that up, it’s 4748 fps at 50F and that’s pretty damned fast. Speed of sound in air for comparison is 1100 fps.


47 posted on 08/24/2014 8:33:25 AM PDT by drbuzzard (All animals are created equal, but some are more equal than others.)
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To: drbuzzard

The article is misleading. The Russian torpedoes use rocket nozzles for guidance, as I recall. What the Chinese are doing is a different technique.


48 posted on 08/24/2014 8:34:10 AM PDT by dinodino
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To: sukhoi-30mki

Interesting. Sorta like wrapping the ship in a subparticle displacement field, keeping the ship in bubble of unaltered space, in order to exceed the speed of light and to jump to warp speed.


49 posted on 08/24/2014 8:37:50 AM PDT by GBA (Here in the Matrix, life is but a dream.)
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To: fso301

But what about the whales and dolphins?

They’ll have follow up Boats to collect the Noms


50 posted on 08/24/2014 8:39:36 AM PDT by molson209 (Blank)
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To: dinodino

I admit I do get the sense that the article could very well have been a feeder from the ChiCom government. I understand that the paper in question has a recent history of being in their pocket.


51 posted on 08/24/2014 8:43:38 AM PDT by drbuzzard (All animals are created equal, but some are more equal than others.)
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To: sukhoi-30mki

Someone with GIS capability should see if there is a straight line plot between PRC and CONUS. BTW, what about great circle plots, since there really isn’t a straight line on a globe.

Seems like atolls, biologics, internal waves, etc. are considerations. Lots of krappola to get in the way.


52 posted on 08/24/2014 8:48:02 AM PDT by wxgesr (Dr. Chu Mi was a supercavitator.....)
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To: sukhoi-30mki

I believe it was the instability of the Shval torpedo that lead to the explosion on the Kursk...


53 posted on 08/24/2014 8:49:35 AM PDT by Molon Labbie (Prep. Now. Live Healthy, take your Shooting Iron daily.)
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To: drbuzzard

Figure it from the perspective of the energy requirements to open a corridor in water for passage. The energy requirements go up a cubic curve relative to velocity. Maximum energy available is a limiting propulsion factor. At sufficient velocity the energy dissipated obviates the need for a warhead.

The dynamic pressure to the leading structure inflates the bubble and high pressure gas forms a barrier between water and the vessel hull. At some point the speed of sound within the gas will be exceeded by the vessel, and the barrier will fail. Cavitation damage results from fluid flow induced by the collapse of a gas bubble.

The nosecone of the Shakval was wetted and contained the seeker head. It also provided dynamic lift in combination with propulsion, to aid suspending the torpedo above the bottom of the gas cavity. Small attitude changes of the wetted contact area create large side thrust at speed. A minimal contact patch ahead of the main vessel bulk must be present for sensing, unless run blind with inertial guidance.


54 posted on 08/24/2014 9:23:58 AM PDT by Ozark Tom
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To: Brother Cracker

Simple answer, nuke the whales.


55 posted on 08/24/2014 9:28:38 AM PDT by Rebelbase
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To: drbuzzard
launching something from 100miles away that makes the devils own noise and can't turn/can't turn well at a moving target, well...
56 posted on 08/24/2014 9:31:36 AM PDT by Chode (Stand UP and Be Counted, or line up and be numbered - *DTOM* -vvv- NO Pity for the LAZY - 86-44)
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To: GotMojo
.....my farts in the bathtub are super cavatating

I resonate with what you are saying.

57 posted on 08/24/2014 9:40:48 AM PDT by GingisK
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To: sukhoi-30mki

Speaking as a non-military person, I believe these have (far) more potential use as a military weapon, than a civilian submarine.

A civilian submarine would mean mass use, and would (inevitably) cause collisions between it, and living tissue in large sea animals.

However as a weapon that would not matter. It would be rare, and simply result in a miss for that shot. Just my take. I have no military background so this is just an opinion.


58 posted on 08/24/2014 9:45:16 AM PDT by Cringing Negativism Network (http://www.census.gov/foreign-trade/balance/c5700.html#2013)
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To: chopperman

yeah..and all the other large fishies! Yikes!


59 posted on 08/24/2014 9:51:58 AM PDT by felixandbowinkle (let irritations pass and become truly happy and strong..fhu.com!)
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To: sukhoi-30mki

They’ll be Spandex Jackets, one for everyone.


60 posted on 08/24/2014 9:52:58 AM PDT by dfwgator
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