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Woods Hole Oceanographic Institution Loses Deep Sea Vehicle
First time accepted submitter Mr D from 63 (3395377) writes in with news about a WHOI vehicle that has been feared lost. "On Saturday, May 10, 2014, at 2 p.m. local time (10 p.m. Friday EDT), the hybrid remotely operated vehicle Nereus was confirmed lost at 9,990 meters (6.2 miles) depth in the Kermadec Trench northeast of New Zealand. The unmanned vehicle was working as part of a mission to explore the ocean's hadal region from 6,000 to nearly 11,000 meters deep. Scientists say a portion of it likely imploded under pressure as great as 16,000 pounds per square inch."
Where do you last remember seeing it?
They can look for the Deep Sea Vehicle and flight MH370 at the same time in that area. Very economical.
"A door is what a dog is perpetually on the wrong side of" - Ogden Nash
Battleship
Maybe it defected. Is the protocol officer still alive?
http://en.wikipedia.org/wiki/Pacific_Rim_(film)
We get so used to successful operations of these things that we forget how dangerous and harsh the environment is down at that depth.
Perhaps Wood's hole can fund another?
Under Pressure: Brings a building down / Splits a sub in two
Who in their right mind would make a deep sea research submarine out of wood, which has holes in it! I mean we are in the 21st century. We rarely make boats out of wood anymore, We defiantly don't make million dollar research devices out of wood, and if they did, they would use high quality wood, not ones with holes in it!
If something is so important that you feel the need to post it on the internet... It probably isn't that important.
eyes on the real don't feel that is dying and its which don'7 use the that suuports Developers. The Rules to follow indecision and to them...then was what got me
The article said it had an optical fiber tether. Nothing on how strong the tether was, but I am assuming it was like breaking a fishing line, so no way to retrieve a portion of the device. They did say that they found pieces floating on surface though.
"He's lost in a 'floyd hole"
It's aliens hiding out in the deep. They will bring the submersible back once they are done studying it.
They should have tied a string to it.
It's just pining for the trenches.
Well, there's spam egg sausage and spam, that's not got much spam in it.
Send the SeaQuest or Darwin to find it. :)
Years ago (not saying how many!) I worked with a university program specializing in autonomous underwater vehicles. Their designs made the submersibles nominally buoyant so that when they lost power they would eventually surface. For deep sea applications I'm sure it's more difficult.. If it were crushed, then I imagine all bets are off.
I know it was unintentional, but scientific vehicle or not, its now just more scrap sitting at the bottom of the sea polluting it (battery chemicals, polymers etc). There should have been a contingency plan for an implosion - hardly an unexpected event at that depth.
Bad fish. Not like going down the pond chasin' bluegills and tommycods. This shark, swallow you whole. Little shakin', little tenderizin', an' down you go... If you want to get your deep sea vehicle back, then ante up. I don't want no volunteers, I don't want no mates, there's just too many captains on this island. $10,000 for me by myself. For that you get the head, the tail, the whole damn thing.
They pretty much know where it is, they just can't get it back.
As opposed to MH370, which nobody knows where TF it is.
For pushing the boundaries. There wouldn't have been an implosion if they weren't pushing it to the edge.
Some people just don't have an appetite for exploration anymore - I say "job well done."
My God, it's Full of Source!
OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
Put 1090 atmospheres or add 1125 Kg/cm^2... Not everyone is using an archaic unit system. Actually, only very few are...
Thank you,
it is crushed submersibles all the way down.
Someone used the word "implosion" correctly.
"A 'person' is smart. 'People' are dumb, panicky animals and you know that."
see. The number ass of them all, halt. Even Emacs
I visited the woods hole facility over the summer, and they truly run a top notch operation (keeping these vessels in one piece at that kind of pressure is insanely tricky - what they're doing is amazing). I'm really sorry to hear about this loss; I'm sure it's going to have a significant impact on important research they're doing.
I am by no means a submersible expert and I am curious as to what part of the sub imploded.
16,000 PSI might sound like a lot of pressure but in reality we use pressures close to that in hydraulic systems (10,000 PSI systems are quite common) and well over that in hydro-forming systems.
Would vacuuming and back filling the air spaces with a non conductive fluid such as Fluorinert or mineral oil be of any benefit? If you eliminate compressible gases from the design, nothing can implode. Weight could be an issue but the liquid can also help ballast the vehicle. The only spot that could be a problem is with motors but the stator coils could be sealed in a fluid or potted cavity and the armature/rotor could live outside under the external pressure and simply use magnetic coupling (like they do in fish tank filters). Maintenance would be a PITA but sounds like a worthy sacrifice to get something to safely handle those pressures.
Well, if it crossed the Pacific and went upstream the Columbia River, it might have made it to Montana -- although there are a surfeit of dams to overcome along the way.
It exceeded 9999 metres and the DSV thought it was already at the surface. It's still puttering around down there wondering where the bloody h*ll it's cab is...
... 11,000 meters deep... ...
Scientists say
... 16,000 pounds per square inch
Time to embrace the metric system, don't you think so ?