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Missing Airplane Flew On for Hours

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Re: Missing Airplane Flew On for Hours

#11

Post by bbosh »

dingaling wrote: post #8
melling wrote: post #4

"Aviation investigators and national security officials believe the plane flew for a total of five hours, based on data automatically downloaded and sent to the ground from the Boeing Co. 777's engines as part of a routine maintenance and monitoring program." Well, if the engines were transmitting, can't someone figure out the direction of the plane?

> Well, if the engines were transmitting, can't someone figure out the direction of the plane? Unfortunatley not; the flight-data transmitting systems ( ACARS and ADS-B ) that do include position data appear to have been turned-off or disabled deliberately. The engine telemetry feed is part of Rolls-Royce's 'Power by the Hour' system, which aims to identify faults or under-performance in the engines whilst still in-f…

Does the data include power information? At least you could get some sort of bound on the distance it is likely to have travelled.

Re: Missing Airplane Flew On for Hours

#14

Post by sitkack »

digitalengineer wrote: post #9

So we have a plane that flew to another destination without communication and several people with bogus passports on board. Familymembers have reported cellphones that kept 'rining' instead of going directly to voicemail (as they would have if the plane was at rhe bottom of the ocean). Hijacking looks to me the only reasonable explenation.

Annnd, why aren't we reading about cell logs of every IMSI of every passenger on board. Isn't this baby stuff? Continually ringing doesn't mean the phone is still on a network.

Re: Missing Airplane Flew On for Hours

#15

Post by United857 »

digitalengineer wrote: post #9

So we have a plane that flew to another destination without communication and several people with bogus passports on board. Familymembers have reported cellphones that kept 'rining' instead of going directly to voicemail (as they would have if the plane was at rhe bottom of the ocean). Hijacking looks to me the only reasonable explenation.

It's possible in some cases for phones to "ring" even if they're off/disconnected, as the tone is generated by the network, not the device itself.

Re: Missing Airplane Flew On for Hours

#16

Post by dingaling »

bbosh wrote: post #11
dingaling wrote: post #8

Earlier quoted context omitted.

> Well, if the engines were transmitting, can't someone figure out the direction of the plane? Unfortunatley not; the flight-data transmitting systems ( ACARS and ADS-B ) that do include position data appear to have been turned-off or disabled deliberately. The engine telemetry feed is part of Rolls-Royce's 'Power by the Hour' system, which aims to identify faults or under-performance in the engines whilst still in-f…

Does the data include power information? At least you could get some sort of bound on the distance it is likely to have travelled.

Good thinking; yes, fuel flow and power settings are included:

http://www.rolls-royce.com/about/technology/systems_tech/mon...

Re: Missing Airplane Flew On for Hours

#17

Post by haldujai »

digitalengineer wrote: post #9

So we have a plane that flew to another destination without communication and several people with bogus passports on board. Familymembers have reported cellphones that kept 'rining' instead of going directly to voicemail (as they would have if the plane was at rhe bottom of the ocean). Hijacking looks to me the only reasonable explenation.

This statement has to die. It has been confirmed over and over again that the phones aren't on and this is a network thing. Do you really think that if this plane was hijacked the phones would be kept on especially in light of the Snowden/NSA leaks? Tracking cell phones has been common for over a decade now, I'm sure a hijacker would be aware of this and would toss the cell phones into the ocean.

Re: Missing Airplane Flew On for Hours

#18

Post by ekianjo »

x0x0 wrote: post #6
melling wrote: post #4

"Aviation investigators and national security officials believe the plane flew for a total of five hours, based on data automatically downloaded and sent to the ground from the Boeing Co. 777's engines as part of a routine maintenance and monitoring program." Well, if the engines were transmitting, can't someone figure out the direction of the plane?

I wonder if the necessary transmission origin data wasn't recorded? I bet the fbi is right now going through boeing's network trying to figure that out though. Is it bounced through satellites? You'd think a XXX million dollar plane would have a gps beacon or something though, just like atm machines. It would be a miracle if it where hijacked and there's even a chance those people are alive.

> It would be a miracle if it where hijacked and there's even a chance those people are alive.

That's very unlikely 240 people would disappear safely without leaving any trace. SO yeah, "miracle" is appropriate.

Re: Missing Airplane Flew On for Hours

#20

Post by melling »

dingaling wrote: post #8
melling wrote: post #4

"Aviation investigators and national security officials believe the plane flew for a total of five hours, based on data automatically downloaded and sent to the ground from the Boeing Co. 777's engines as part of a routine maintenance and monitoring program." Well, if the engines were transmitting, can't someone figure out the direction of the plane?

> Well, if the engines were transmitting, can't someone figure out the direction of the plane? Unfortunatley not; the flight-data transmitting systems ( ACARS and ADS-B ) that do include position data appear to have been turned-off or disabled deliberately. The engine telemetry feed is part of Rolls-Royce's 'Power by the Hour' system, which aims to identify faults or under-performance in the engines whilst still in-f…

What is it transmitting to every 30 minutes (fixed: seconds)? If more than one satellite was involved, that might give direction. traceroute?
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