Originally posted by Pilgrum
reply to post by Nonchalant
The DFR and CVR from flight 93 were recovered. The CVR recording was used in the trial of Zacarias Moussaoui and a transcript can be found here.
There's some ongoing controversy about the final 3 minutes though suggesting that the final 3 minutes are missing (plane crash thought to be at 1006 but the audio ends at 1003). Looking at the timestamps and remembering that these (audio) recorders save approx 30 minutes in an endless loop it looks to be all there to me.
DFR and CVRs;
www.howstuffworks.com...
"
Most magnetic-tape CVRs store the last 30 minutes of sound. They use a continuous loop of tape that completes a cycle every 30 minutes. As new material is recorded, the oldest material is replaced. CVRs that used solid-state storage can record two hours of audio. Similar to the magnetic-tape recorders, solid-state recorders also record over old material.
"
If the black box were chip-based, then they are quite a bit tougher than tape-based systems. It appears that the Chip-based DVR was on flight 93. Here is the detailed inspection;
www.gwu.edu...
So, the last two minutes is the most likely data to be preserved on a tape. However on an electronic system, it would be random. That we have a serial record of all but the last two minutes is sort of curious -- not impossible.
I don't know about the Audio recording -- if it was tape, then the last 3 minutes missing is highly unlikely. The first 3 minutes missing would be more likely -- because that part is exposed and on the outside of the reel.
I was trying to find the percentage of black boxes that are recovered but no such luck. Most of the black boxes were not recovered on 9/11.
Here is a good timeline and record of events, though this is from the perspective of non-Gov POV; www.historycommons.org...
>> I'd like to see some links of this flight that is supposed to be so much like flight 93. I still don't see how a plane just breaks up in midair WITHOUT going supersonic and then going perpendicular to the flight plan.
>> I'd also like to say, that Flight 800 -- at least to my first instinct on it, might have been hit by a shoulder launched missile.
A LOT of small planes crash, with pesky Liberals and South American leaders at a greater frequency than the public at large. It was interesting that JFK Jr. was known as an expert pilot and not a risk taker, yet the media covered his event as if he were inexperienced. Look for accidents that happen at the highest altitude reached; pressure-detonated charges on the outside of the planes.
>> I'm willing to accept that Flight 93 just crashed. It's just that a lot of this seemed like a cover-up so I assumed the worst. However, finding un-burnt paper is not a huge anomaly to me -- I don't think it means much one way or the other.
Again, I find it hard to believe that the plane can break up in mid-air such that the engine is miles away.
Don't rush too much to judgement on this new crash before we get good details and non-circular references.



And to the guy who thinks there is a conspiracy because there were oil execs
on board, I hope you are kidding. BTW, nice article. 










