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Guru

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Black Box Recovery

01/08/2015 3:46 PM

Anti-submarine operations included the use of passive sonobuoys ejected from an aircraft over water. Upon striking the surface, the buoy deployed an inflatable antenna which also served to support the buoy while releasing hydrophones to a prescribed depth. The power source was a salt water activated battery.

Would it be possible to utilize a similar system to aid in the recovery of a black box?

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Guru

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#1

Re: Black Box Recovery.

01/08/2015 3:50 PM

Possible or practical??

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Guru

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#2
In reply to #1

Re: Black Box Recovery.

01/08/2015 4:53 PM

I don't know. We went through about 2000 sonobuoys in six months. They scuttle when their done.

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Guru

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#3

Re: Black Box Recovery.

01/08/2015 5:41 PM

Probably not.

I don't know much about avionics, but a little thought brings up a few potential issues; how can you ensure activation and deployment, from a aircraft that could hit the surface of the water at wildly varying angles and speeds, as well as in multiple pieces, not to mention the issue of the constant drift with wind and currents? Not to mention the issues of high integrity data connections that can easily be severed to deploy the black box/ buoy. Or were you thinking more along the lines of something that deployed from the part of the plane where the black box was, without firing it out as well?

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#4

Re: Black Box Recovery.

01/08/2015 5:46 PM

Just put GPS trackers on the aircraft - then you know where they are/went.

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Guru

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#5

Re: Black Box Recovery.

01/08/2015 6:20 PM

Why not just paint the black box International Orange?

Then it'll be easy to see.

This begs the question of how many planes ditch in water as opposed to unintentionally flying into terrain?

How many black boxes have never been recovered? Is it worth it?

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#8
In reply to #5

Re: Black Box Recovery.

01/08/2015 7:38 PM

ya mean kinda like this??

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Guru

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#9
In reply to #8

Re: Black Box Recovery.

01/08/2015 8:00 PM

Where did that come from??????????????????????

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Guru

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#14
In reply to #8

Re: Black Box Recovery.

01/09/2015 12:36 PM

Yes, that's what they look like, ever wonder why it's called a 'black' box since the only visible 'black' is text and handle?

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#16
In reply to #14

Re: Black Box Recovery.

01/09/2015 6:30 PM

It's a generic term....

"In science, computing, and engineering, a black box is a device, system or object which can be viewed in terms of its input, output (or transfer characteristics) without any knowledge of its internal workings. Its implementation is "opaque" (black). Almost anything might be referred to as a black box: a transistor, an algorithm, or the human brain."

http://en.wikipedia.org/wiki/Black_box

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#17
In reply to #16

Re: Black Box Recovery.

01/09/2015 6:56 PM

"That's not what Sheequahnique said!"

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#6

Re: Black Box Recovery.

01/08/2015 6:45 PM

I'd be surprised if they are not doing that.

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#7

Re: Black Box Recovery.

01/08/2015 7:32 PM

I think recovery of the bodies is more important than black boxes at the moment.

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#10

Re: Black Box Recovery.

01/08/2015 9:41 PM

those (orange) boxes are going the way of the 8 track tape. its GPS and satellites anymore. MH370 will probably be the last to simply disappear without a trace.

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#11

Re: Black Box Recovery

01/09/2015 10:18 AM

Do each aircraft's/airline's blackbox emit a different RF?.

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#12
In reply to #11

Re: Black Box Recovery

01/09/2015 11:39 AM

No.

How often would we be looking for more than one pair of black boxes within 50 miles of each other??

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#13

Re: Black Box Recovery

01/09/2015 12:18 PM

its a big ocean.

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Guru

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#15

Re: Black Box Recovery

01/09/2015 12:45 PM

They're emitting RF...works quit well above water, salt water severely attenuates RF. If you want to use a sonobuoy to locate it, make it output an audio signal that the sonobuoy can receive.

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