Malaysia Airlines 777 missing

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MarkE said:
This site is probably one of the worst for credible information. In a few days they'll publish an "article" saying that Obama fired a missile at MH370 from Air Force One while being piloted by Beelzebub himself.
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Oh please sweet angle of SEO index this post and may the muses of the internet insert this theory into the thoughts of WND and Alex Jones InfoWars. Pleeeeeeease this would be epic.

And an entertaining read.
 
FlySooner9 said:
Exactly what i was thinking. They found the AF447 boxes in way deeper water using these pings why cant they find them with MH370? My thought now is they must be looking in the completely wrong area, somehow.
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I believe that the wreckage was found during unrelated underwater mapping operations, long after the FDR had stopped pinging.
 
Pilot Fighter said:
Why would you expect that? What is your size estimation of current search area? 500 square miles? 1000 square miles? 10,000 square miles? I'm an ASW guy and the best approach is not immediately obvious to me. Throwing the maximum resources towards finding wreckage seems like the best use of resources to me and appears to be the course chose by the decision-makers in this case.

The detection range is probably only a couple of kilometers, so reducing the search area is critical.
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Well then I'm more than happy to defer to your subject matter expertise. :)

I figure a good estimate of the search area is four-to-five times the area of that rectangle I estimated earlier; maybe 120-130 miles square.

I've been trying to understand more about acoustic location using this guy's thesis (5MB PDF), which was an attempt to model/simulate the conditions of finding AF447's pingers. Extracting part of his work as a greatly-simplified example (basically a homogeneous environment), it looks like the attenuation would be 10 dB/km at 37.5 kHz(!). So, yeah, it seems like the pinger would be nearly undetectable more 3 km (1.6 nm) away. I'm surprised!

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Does that jive with your understanding?
 
A Life Aloft said:
Where exactly would be a location so remote where you could fly and land an aircraft of that size with no one noticing and completely undetected even by any military entity?
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Doesn't have to be anywhere that there's an expectation of ever taking off again. Also, it could be remote in terms of media openness, like North Korea. Where "exactly"? No clue. I was just saying things aren't adding up to me.
 
Minuteman said:
Well then I'm more than happy to defer to your subject matter expertise. :)

I figure a good estimate of the search area is four-to-five times the area of that rectangle I estimated earlier; maybe 120-130 miles square.

I've been trying to understand more about acoustic location using this guy's thesis (5MB PDF), which was an attempt to model/simulate the conditions of finding AF447's pingers. Extracting part of his work as a greatly-simplified example (basically a homogeneous environment), it looks like the attenuation would be 10 dB/km at 37.5 kHz(!). So, yeah, it seems like the pinger would be nearly undetectable more 3 km (1.6 nm) away. I'm surprised!


Does that jive with your understanding?
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That super fine coffee you make is beginning to effect your social interactions.
 
Minuteman said:
I've been trying to understand more about acoustic location Does that jive with your understanding?
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I didn't mean to sound snarky. The list of things that I've read and remembered is much longer than the list of branches of science I understand.

Sum up my experience as an understanding that finding things floating and submerged in the salty parts of world is tough, even things that want to be found.

That paper is 100 pages long...don't hold your breath.
 
Minuteman said:
Well then I'm more than happy to defer to your subject matter expertise. :)

I figure a good estimate of the search area is four-to-five times the area of that rectangle I estimated earlier; maybe 120-130 miles square.

I've been trying to understand more about acoustic location using this guy's thesis (5MB PDF), which was an attempt to model/simulate the conditions of finding AF447's pingers. Extracting part of his work as a greatly-simplified example (basically a homogeneous environment), it looks like the attenuation would be 10 dB/km at 37.5 kHz(!). So, yeah, it seems like the pinger would be nearly undetectable more 3 km (1.6 nm) away. I'm surprised!


Does that jive with your understanding?
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Looking good!

I think.
 
The media is saying Malaysian officials believe the plane may have changes course? How the hell would they know that? This investigation is slightly more annoying to me than any other in the past.
 
SeanD said:
The media is saying Malaysian officials believe the plane may have changes course? How the hell would they know that? This investigation is slightly more annoying to me than any other in the past.
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It's difficult at this point in time to exactly know what this may mean. I believe that this scenario was a report/statement made by a Vietnamese military entity (can't remember if it was the Navy or Air Force- but I think it was the Navy) and stated that they had seen the plane "turn" on their radar equipment. It may not mean that the aircraft changed course to return to their departure airport or any other field. What it may mean is the flight became erratic at some point and therefore veered off it's course. (how much/far who knows) If you look at the flight paths/patterns of other crashes/incidents, you will often see the plane flying all sorts of maneuvers/changing of directions multiple times and even altitudes up and down and often bizarre patterns at some point before they crash due to a variety of circumstances.

I have not seen any details of this reported radar occurrence that is, if the turn was normal/controlled, at what altitude, speed, how long it was observed, or anything else however. Perhaps that is still being examined. I have no idea, really.
 
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