Lax From United States of America, joined Dec 2000, 2290 posts, RR: 3 Posted (13 years 5 months 2 weeks 6 days 2 hours ago) and read 1125 times:
I heard tonight that the black boxes of the 2 Boeing 767's that were flown through the WTC might not be recoverable.
Too bad. Sure hope they can retrieve them though. I'm sure they would tell us volumes about the last moments of the flights.
But when you see the incredible impact sustained by the two jets, it makes you wonder if EVERYTHING, including everyone on board, didn't just vaporize upon impact.
I've seen the videos over and over, and it's just mind-numbingly tragic!
It appears the jets just flat vanished upon impact! Nothing there at all! Total evaporation.
So how could those boxes survive it. Although I know the Pennsylvania jet (the UA 757) did have its boxes recovered. And it went in almost nose-down.
Eal401 From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 5 months 2 weeks 6 days ago) and read 1095 times:
If you see the video of the second 767 hitting the tower from the right angle, you can actually see the fuselage burst out from the other side of the building just before the fireball erupts. This appears to have been substantiated by the flight deck of, possibly this aircraft, being found on the roof of a nearby building. It will be a miracle if the black boxes have survived from the two 767s though, first of all they were in the location of an 800-1000 degree fire for over an hour, then buried under tonnes of rubble.
Captjetblast From Argentina, joined Aug 2001, 281 posts, RR: 0
Reply 3, posted (13 years 5 months 2 weeks 5 days 17 hours ago) and read 1043 times:
Cockpit Voice Recorder (CVR) and Flight Data Recorder (FDR)
Impact requirements: 3400G for 6.5ms
Fire test requirements as requested by year:
1958: The recording medium shall remain intact so that intelligence can be analyzed after the recorder has been exposed to flames of 1100 C, enveloping at least 50% of the outsuide area of the case for 30 minutes.
1963: PLUS: Any cracks or holes resulting from the impact shock test be included in the 50% flame envelopment, and that the recorder be allowed to cool naturally
Spinkid From United States of America, joined Jul 2001, 1147 posts, RR: 0
Reply 4, posted (13 years 5 months 2 weeks 5 days 17 hours ago) and read 1031 times:
I hold out hope they will be found. So many times during crashes you hear that they wonder if the boxes will be recovered and they do get them. they found TWA 800 and they fished the Valujet one out of a swamp. There was quite a fire in the buildings, but remember there was an explosion. The boxes could have been blown farther out or fallen into the "crater" created inside the building.
While I think it will be difficult. It is certainly within reason that they could be found.