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(Washington Times)   Cockpit voice recorder 'cooked'   ( divider line
    More: News  
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3360 clicks; posted to Main » on 15 Sep 2001 at 6:32 AM (16 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

19 Comments     (+0 »)
2001-09-15 07:46:57 AM  
what a bummer. i thought one of these things could take 30hrs of being torched in jet fuel. Looks like the website holding this information is wrong.
2001-09-15 08:09:22 AM  
Hmmm, the conspiracy theorists are going to have a field day with this little tidbit.
2001-09-15 01:29:25 PM  
They really should figure out a way to jettison those things at the point of impact.
2001-09-15 01:49:27 PM  
I think the voice recorder picked upi things no one would want to hear (screaming pilots getting killed,, etc) I wouldnt blame anyone for trying to keep that out of the public.
2001-09-15 02:03:01 PM  
wow, Finiamh... I never even thought about that. How horrifying it would be to hear that.
2001-09-15 02:35:16 PM  
ATree: That is a wonderful idea!

Use "airbag" type triggers, and a ballistic type device to shoot it out of the tail... Comes down on a chute...
2001-09-15 03:03:12 PM  
<b>Stebain</b>: Just a thought, planes don't always ram straight nose down into the ground.

it would have to be some other method of ejection.
2001-09-15 03:03:35 PM  
Er, I mean sparky.
2001-09-15 03:33:50 PM  
It could still work Kosta. Many cars have multiple sensors around the car as could an aircraft. You could also program the computers on-board to eject the device if it determined a crash was unavoidable. You just want to get the thing away from the flames and unless the plane lands tail first this should be effective.
2001-09-15 05:01:35 PM  
Finiamh: FYI -- The Fed government by law doesn't allow the contents of actual CVRs (cockpit voice recorders) to be made public, precisely for the reason you give. They do however print transcripts of CVR contents after an investigation has been completed.

There are a limited number of actual CVRs that have been released publicly, however, mainly due to individual legal actions by particular parties in particular cases (e.g., someone's desire to let everyone know what happened in an incident).

In general, don't expect to ever hear the contents of any of these CVRs, except for small excerpts carefully released after much internal discussion.
2001-09-15 05:12:02 PM  
Why don't they put something in place where the data is transmitted to the ground in some way. Or satellite? Would be a good backup for the physical recorders.

My own oppinion is that the boxes probably DO contain useful info, they're just keeping it really quite right now. There are all sorts of things going on behind the scenes, and my bet is that the stuff visible through the press are mainly things they want the enemy to know.
2001-09-15 05:15:15 PM  
HappyFunBall not to say that you are wrong, which you probably arent, but if there is a tape,it'll definatly be on morpheus.
2001-09-15 05:27:37 PM  
flinx: Problem is that the signal would be interceptible and likely not reliable. The black boxes fail infrequently.
2001-09-15 05:36:28 PM  
I guess it could be encrypted then. But you're right. It probably makes more sense to beef up the boxes themselves.
2001-09-15 06:34:55 PM  
Ejecting black boxes is a good idea, but think of all the accidental airbag discharges that happen every year. It wouldn't look good at all if a plane farts its orange capsules out every time it lands.
2001-09-15 06:35:19 PM  
Of course... it would be interesting if they could have a switch or something to arm the system...
2001-09-15 06:53:04 PM  
I'd say the large majority of crashes are nose first, atleast enough to set off a G-switch. Make it go off at 100G's or greater...

A tail first crash is very rare, and is usually a result of the center-of-gravity going aft due to the nose, cockpit, or engine(small planes) becoming removed... However, some planes have an aft CG, such as modern fighters and aerobatic planes, which will make them stall rather flat or even tail slide in some circumstances...

The tail section usually survives a crash...
2001-09-15 08:56:32 PM  
Interesting post.

Here's a link to the BBC story about the PA black box. It contains a brief description of how they're designed.

BBC black box story

They say that they're put in the tail of aircrafts.
2001-09-15 09:18:37 PM  
Excuse me for how this may sound, but, like a post above says, this just made everything sound a little more self inflicted to me. I dont know, there are lots of possibilites on who the responsibles may be at this time, but, i think its interesting to think just how much money the us congress granted to president bush. We're talking about thousands of millions of dollars. and now this?

i dont know. i hope im wrong.
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