Flight MH370 and Submarines

[Artist]

I'm no expert on ocean recovery operations, but, if the "downed" HM370 is indeed down where they think it is, and, if the black boxes send out signals for at least 30 days, would not a submarine be able to pick up that sort of signal?

[nelsonob1]

Maximum range to hear the ping is 2 miles. The minimum search area is still the size of Belgium.

[Steven Noel]

Much of the Indian Ocean is very, very deep and I would not be surprised if much the plane is never found--or at lest not any time soon.

[Gust]

The ocean is very noisy, even with masking technology it's very difficult. The tech for discerning the ping was developed in Canada during WWII. A trident sub can detect thousands of propellers at any given time from great distance and can single some out, but a ping is much trickier.

[Steven Noel]

Something else to consider: based off my (rough) calculations, the pressure at some of these depths could be as much as ~4.7 Million Pa (47 Bars/Atm). Could any of the engineers here speculate if a flight data recorder could survive that kind of massive pressure?

[220swifty]

Don't ask the engineers, ask the guys on the tools.

[nelsonob1]

flight recorders are supposed to be good to 20,000 ft.

[Steven Noel]

Should be good then, that would be right around 60 bars/atm.

[bobalong]

Originally Posted by 220swifty

Don't ask the engineers, ask the guys on the tools.

[nelsonob1]

Originally Posted by Steven Noel

Should be good then, that would be right around 60 bars/atm.

600 bars i think.

[Steven Noel]

Originally Posted by nelsonob1

600 bars i think.

Yea, I realized I was off by one order of magnitude in my conversion of kPa to Bar.

[Flatlandliver]

From CBS news

The ocean depth in the search area ranges between 3,770 feet and 23,000 feet, and the U.S. Pacific Command said it was sending a black box locator.
The Towed Pinger Locator, which is pulled behind a vessel at slow speeds, has highly sensitive listening capability so it can hear the black box “pinger” down to a depth of about 6,100 meters, Cmdr. Chris Budde, a U.S. 7th Fleet operations officer, said in a statement.

[Artist]

Here we go...
http://video.foxnews.com/v/338619520...#sp=show-clips

[norwestalta]

Could be difficult given the different thermal zones. It would be good to know what happened for sure. A lot of speculation out there.
If the tracking equipment was disabled could the black box be disabled as well?

[Tom Beck]

look at this massive area^^

http://www.statista.com/chart/2024/t...missing-mh370/

I don't get the point with the black box neither...I thought it is like indestructible

[Fisherpeak]

Originally Posted by norwestalta

Could be difficult given the different thermal zones. It would be good to know what happened for sure. A lot of speculation out there.
If the tracking equipment was disabled could the black box be disabled as well?

Nope,don`t think so.

[norwestalta]

I hope they find it. Sure would be nice to know what happened. Media seems to be all over the map with how plane disappeared.