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But only today have the Malaysians have only formally admitted that to be true today. |
A point to consider is that for each "ping" there will be a range calculation from the satellite. the most interesting ones are the first two and the last. The last will give final range but the first two along with the last known position will give an indication of heading or speed.
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Some posters need to take a step back. There is absolutely a 0% (zero) chance this a/c entered Russian airspace. Did you forget about the Cessna-172 which was flown unchallenged across former Soviet Air Defense Identification Zone from Helsinki to Moscow, and successfully landed in Red Square? Today's Russia is different. Moreover with Russian/Ukrainian crisis ongoing, Russian military is on high level of alertness. And as you probably know, USAF are on air manoeuvres at Poland, close to Ukrainians borders (with AWACS) and Russia air force over Black sea. I would be highly sceptical to find out, that they missed target huge as 777, even if it was coming from not so exposed direction. |
I'm intrigued by the gap between the northern and southern corridors. The coverage maps clearly show this gap exists due to the overlap with POR. However the area of the gap would be at the very edge of coverage with POR, with the satellite very close to the horizon. It is not inconceivable transmissions in this region would only be picked up by IOR. In particular a ditched aircraft in the water may well have difficulty transmitting to a satellite close to the horizon. [snip] NB I would love to see similar 'corridors' for the various pings between 1.30-8.11am. This would help rule in/out various flight paths being speculated. |
ACARS and IFF
It cannot be determined that the ACARS and IFF were switched off. Only that they failed to respond to interrogation or transmit data!
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I find the Northern route more credible with Myanmar the hole in the radar fence. They've then got very high ground to cover any intended Westward movement from the Indian radars. The altitude excursions probably indicate non pro pilots as VNAV is the more complicated mode, whist HDG SEL is adequate for LNAV using just a mobile or tablet FMC app. No need for a/c systems nav at all. I've got doubts that they made it unless the authorities in some country en-route were also in on it.
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That's not the case. It seems that the aircraft did not send position reports as previously thought. INMARSAT and whomever (US gov't probably) were able to distinguish which satellite(s) were handshaking with the aircraft, but only to a degree that established an "arc". That arc goes North, toward the 'stans, or South, deeper into the Indian Ocean. |
http://www.ctbto.org/fileadmin/user_...ines_MH370.pdf
IDC infrasound search for missing flight Malaysian Airlines MH370 Summary This brief report summarizes the analysis and findings using IMS infrasound data and IDC bulletins on the search for the missing flight MH370 from Malaysian Airlines. The flight MH370 took-off from Kuala Lumpur airport, Malaysia, on Friday 7 March at 16:41 GMT and was on route for Beijing, China. It went missing within the first hour of flight (source: BBC). Infrasound recordings from the IMS infrasound network and IDC bulletins are then searched for potentially related information. The IMS infrasound network routinely detects commercial flight taking off and landing from local airports. However it should be noted that: - Commercial planes in normal flight conditions are usually detected by IMS infrasound stations only at close range (within about 100km from stations). - The only reported commercial plane that could be tracked over large distances (across the Atlantic) with an infrasound station was the Concorde as it was travelling as supersonic speed. The Concorde was discontinued 10 years ago. - For flight MH370 to be picked up by IMS infrasound network at regional or global distances, it could mean that it crashed, exploded or disintegrated. However it would likely not be possible to draw any definitive conclusion based on remote infrasound recordings alone..... see website for more.. |
Theoretical
I understand your logic, but the last info apparently came from Inmarsat. In theory, they just input and output data, but they have had the bright idea to check if they had any data coming in which they did not tranmsit as it had no content. They seem to have found the needle in the haystack. Bravo Inmarstat. |
I think he is assuming crew incapacitation in order to see if there is an innocent explanation...
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Is any one else wondering about the Freescale Semiconductor Experts on board. 20 highly skilled engineers & developers of hi tech aircraft navigation & weapons systems with radar-cloaking capacity via "aeronautical hardware technology produced by Freescale" as reported in the press. Go look up Freescale, they do a LOT more than aircraft related stuff.... they are a broad semiconductor company supplying and designing components from aircraft to computers to telephones to everything and anything in between. Given China's status as a major manufacturing centre for many companies, its perhaps no surprise that bunches of engineers from a major semiconductor company fly there on a regular basis. Freescale have something like 18,000 employees.... sending 20 employees somewhere is no big deal ! Don't believe all the nonsense journalists publish, and certainly don't read too much into it ! |
The "altitude excursions" that keep getting mentioned don't seem likely. I think between inaccurate primary radar and F-15 performance from a 777 I would have to go with the former.
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Flying into Gan or other islands ignores the fact that they have radars and eyes and know you are not a flight planned flight. It would be reported unless they were a perpetrator country and satellites would identify the a/c on the ground. It has to reach a rogue country like Somalia for cover if routing South of India and that's stretching it.
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I am imagining that 777 has no fire detection/suppression in the E&E bay.
Somewhat wild guess (among many even wilder guesses) would suggest a slow undetected melting of various electrical components which sequentially disabled ACARS/Tpndr/ Comms / CrewO2/Control of pressurisation . . . is it possible that the depressurisation could have deprived the fire/smouldering of oxygen sufficiently to extinguish/halt the electrical carnage leaving the AP/FBW to continue serenely in Marie Celeste fashion till fuel exhaustion ? |
The altitude excursions may not be accurate because of primary radar, but nevertheless probably occurred to some extent. The readings may have merely exaggerated the trends.
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Do we have some packet that says <ACARS SYSTEM BEING TURNED OFF NOW> or is just that it missed the usual interval?
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Malaysian Airlines MH370 contact lost
Folks: why would an apparently competent crew turns off ACARS and transponder but seemingly "forget" about SATCOM (assuming this is indeed the satellite feed the authorities are referring to - I have not seen any formal reference to IMARSAT) ? And in the case it was not a deliberate act is there any scenario that would take off ACARS and transponder yet allow the aircraft to fly for another 4-5 hours ?! I can't think of any...
Really really weird one ! |
R/T
Does your vhf announce your presence even if you are only listening?
Once upon a time it did not appear to. |
Oceanic
As a Professional Pilots forum, these fanciful posts are embarassing. Heists, gold bullion, conspiracies. If you haven't anything sensible to post may I request you desist or join a different forum for fictional creative writing. 200 pages of posts, mostly drivel. Thanks to those few who have the expertise to elaborate on the facts. Condolences and sympathies to the family and friends of all involved. Not knowing, while trying to have some semblance of hope has got to be trying. Much of this doesn't help at all. |
Reports say that MH370's last ACARS pings were received by Inmarsat.
If it's a fact that the pings were received by Inmarsat only, and not by ACARS ground stations, couldn't you deduce that MH370 was not in range of an ACARS ground station when it sent its last pings? SITA ACARS ground station coverage: http://s15.postimg.org/w5heol3cr/SIT...S_coverage.jpg ARINC ACARS ground station coverage: http://s16.postimg.org/i9ivazs51/ARI...S_coverage.jpg SITA ACARS ground station coverage (PDF) ARINC ACARS ground station coverage (PDF) |
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