Malaysia Airlines Flight 370 is Missing

D

delft

Brigadier
Re: Malaysia Airlines Plane is Missing

kwaigonegin said:
If it makes any difference the analysis and possible LOC came from Boeing itself and not some politician or so called experts.
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But I still want to know. Quite possibly Boeing published their assumptions and they just weren't transmitted to us?
 
Quickie

Quickie

Colonel
Re: Malaysia Airlines Plane is Missing

I suspect the analysis isn't a 100 % sure thing. What if the plane did a series of maneouvres in another part of the corridors to mimic a plane that is just mainly flying straight after making 2 or 3 turns. Is the analysis of the Doppler Effect and other data able to discount the other more complicated maneouvres?
 
solarz

solarz

Brigadier
Re: Malaysia Airlines Plane is Missing

Quickie said:
I suspect the analysis isn't a 100 % sure thing. What if the plane did a series of maneouvres in another part of the corridors to mimic a plane that is just mainly flying straight after making 2 or 3 turns. Is the analysis of the Doppler Effect and other data able to discount the other more complicated maneouvres?
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Actually, I think that they are *assuming* the plane was flying in a straight path, and they assumed the direction of the plane by using previous data and extrapolating. Otherwise, they would not be able to establish a flight path with just the pings.
 
Quickie

Quickie

Colonel
Re: Malaysia Airlines Plane is Missing

The investigation team did not just assume but has come to the conclusion that the plane did went down the path through the southern corridor.

They might have discounted the plane making more complicated maneouvres, as this would have been reflected in the analysis of pings in regards to the Doppler effects. Of course, there is the possibility that maneouvres were done between the pings and were not "caught", but they would not say about this, because that would imply they are not 100% sure of the conclusion but only slightly less than 100% sure.
 
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solarz

solarz

Brigadier
Re: Malaysia Airlines Plane is Missing

Quickie said:
The investigation team did not just assume but has come to the conclusion that the plane did went down the path through the southern corridor.

They might have discounted the plane making more complicated maneouvres, as this would have been reflected in the analysis of pings in regards to the Doppler effects. Of course, there is the possibility that maneouvres were done between the pings and were not "caught", but they would not say about this because that would imply they are not 100% sure of the conclusion.
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As far as I can understand it, the doppler analysis only estimates the distance between the plane and the satellite when the pings are received. They cannot actually pinpoint the plane's location.

If we take the analogy of the sound a car makes as it speeds by you, it would sound exactly the same when going north-south as it would when going east-west. Worse yet, with only 3 pings to work with, you wouldn't even know if the car was going in a straight path, or made a turn sometime between those pings.

Therefore, any conclusions about the plane's flight path must be based on prior assumptions.
 
Quickie

Quickie

Colonel
Re: Malaysia Airlines Plane is Missing

solarz said:
As far as I can understand it, the doppler analysis only estimates the distance between the plane and the satellite when the pings are received. They cannot actually pinpoint the plane's location.

If we take the analogy of the sound a car makes as it speeds by you, it would sound exactly the same when going north-south as it would when going east-west. Worse yet, with only 3 pings to work with, you wouldn't even know if the car was going in a straight path, or made a turn sometime between those pings.

Therefore, any conclusions about the plane's flight path must be based on prior assumptions.
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As far as I can understand it, the doppler analysis only estimates the distance between the plane and the satellite when the pings are received.
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The Doppler Effect analysis only came about days later after they have come out with the 2 corridors where a separate analysis, involving timing between the pings, were used to estimate distance. Otoh, the D.E. analysis allows the investigator to determine not only the direction of plane's travel relative to the satellite but also which of the 2 corridors because of difference in location and direction of the 2 corridors relative to the satellite.
 
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solarz

solarz

Brigadier
Re: Malaysia Airlines Plane is Missing

Quickie said:
The Doppler Effect analysis only came about days later after they have come out with the 2 corridors where a separate analysis, involving timing between the pings, were used to estimate distance. Otoh, the D.E. analysis allows the investigator to determine not only the direction of plane's travel relative to the satellite but also which of the 2 corridors because of difference in location and direction of the 2 corridors relative to the satellite.
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That's pretty much what I said: prior assumptions. It doesn't matter how many analyses are done, if your input is sketchy, your conclusions will be sketchy as well. Making a chain of sketchy analyses only makes the final conclusion sketchier.

I won't dispute that this is probably their most educated guess, but it's not conclusive evidence. Not by a long shot.
 
Quickie

Quickie

Colonel
Re: Malaysia Airlines Plane is Missing

The input is not sketchy at all, especially the satellite data. Outside of the plane being abducted by U.F.O., the conclusion of the plane ending in the Indian ocean isn't sketchy at all, not 100% maybe, but something that is likely. Unless there is really a conspiracy where all or some countries in the investigation team will have to be in it, but that's another story.
 
J

joshuatree

Captain
Re: Malaysia Airlines Plane is Missing

I'm getting really tired of info changing and changing again. Not that this info is game changing but I would like to think this part is at least well established by now.

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Officials have revised the account of the last words that came from the cockpit of Malaysia Airlines Flight 370 — the latest about-face in the ever-shifting investigation into the jet's disappearance.

The Malaysian Department of Civil Aviation said Monday that the last communication with the air traffic controller was "Good night, Malaysian three seven zero."

Weeks earlier, officials reported the last words were: "Alright, good night."

The cause of the discrepancy was unclear.

Authorities also said they are still conducting a forensic investigation to determine who was talking — even though the airline's chief executive said two weeks ago that it appeared the co-pilot was the speaker.

Since the flight vanished March 8 en route to Beijing from Kuala Lumpu with 239 people on board, the investigation into what happened has been beset by false leads and conflicting information.

“This investigation is an example of what not to do,” James Hall, a former chairman of the National Transportation Safety Board told NBC News last week. “Everything they do, they change.”
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