General > General Technical Chat
CVR of crashed 737 Sriwijaya Air SJ182 recovered ... in pieces
tooki:
--- Quote from: urbis on January 18, 2021, 06:47:45 pm ---I would imagine so.
I’m surprised more real time data and voice isn’t streamed via satellite in this day and age.
We all saw what happened with MH370 and the level of data that COULD have been obtained with a subscription.
--- End quote ---
As already said, the aviation industry is very, very slow to adopt new things. But this has been in testing for years, and CVR/FDR manufacturers are indeed now offering black boxes with satellite links. (As well as the 25h recording time required for new black boxes by one of the aviation regulators.)
Bear in mind that many airlines already use flight deck systems with satellite links, as seen in various recent non-crashy incidents where airline technical ops could monitor the flight systems in real time.
coppercone2:
would all this stuff really help or just make them focus on generally finding 1 cut corner and ignoring the ones that seem to hold vs generally improving hopefully everything. right now do you even want to tell them exactly what it was (letting cheap skates play whack a mole) or to fix all the problems?? IMO its the wrong direction to take.
Its like saying 'oh dont worry about this piece of shit generator we have thats obviously going to explode and catch on fire, charlie is watching it now, so we can figure out the cheapest way to make it not explode next time it explodes'. IMO this monitoring is a false sense of security.
The last thing I want to hear is garbage being put into the air because they convinced someone they can analyze it better when it crashes again. chances are its related to god damn obvious design problems like they have been finding for how long now?
This is like a ATM camera protecting someone from a fucking bear attack. The hope is there is a bear that loiters, but usually its a black swan that won't have a useful signature. or that signature will get covered up by... shitty management. Those cracks, vibration, signal resets, buzzes and things are just normal harmless glitches!!
Halcyon:
I'm surprised they haven't invented a better mechanism for recovery of recorders. Maybe have a secondary backup recorded that jettisons itself right before or the moment of impact, then it can just be fished out of the water or whatever. At least that way you have a lot of the valuable data, even if you miss the last few seconds, I think by that stage, the data is less important anyway.
james_s:
I think it would be very difficult to detect the proper moment to jettison, and the recorder would still be traveling at the same speed as the aircraft so it might not do much good. It would pop out and smash into the earth at the same speed without the possible benefit of the fuselage absorbing some of the impact.
amyk:
--- Quote from: james_s on January 24, 2021, 11:49:20 pm ---I think it would be very difficult to detect the proper moment to jettison, and the recorder would still be traveling at the same speed as the aircraft so it might not do much good. It would pop out and smash into the earth at the same speed without the possible benefit of the fuselage absorbing some of the impact.
--- End quote ---
...and considering that it is located in the tail, which is the last part to hit anything, I suppose everything in the nose ends up looking like it went through the Hydraulic Press Channel... :o
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