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[News] Air India flight AI171 Ahmedabad -> London Gatwick crashed







Notters

Well-known member
Oct 20, 2003
25,035
Guiseley
Technology still hasn't quite moved that far yet. SAT coms are on board most aircraft now, but they don't transmit aircraft Telemetry. That is sent via, what is effectively a mobile sim card after landing.

In theory all Telemetry could probably be done in real time by sat comms, they are expensive to use, so while I don't know the reason why they don't, I'd guess the prohibitive costs of sat comms makes it not worth doing for all flights when only the odd one crashes?
But am I right in thinking that the engines do this, for RR at least?
 




Bozza

You can change this
Helpful Moderator
Jul 4, 2003
59,157
Back in Sussex
Technology still hasn't quite moved that far yet. SAT coms are on board most aircraft now, but they don't transmit aircraft Telemetry. That is sent via, what is effectively a mobile sim card after landing.

In theory all Telemetry could probably be done in real time by sat comms, they are expensive to use, so while I don't know the reason why they don't, I'd guess the prohibitive costs of sat comms makes it not worth doing for all flights when only the odd one crashes?
Not sure it can be that prohibitive when passengers can buy a video streaming package on long-haul flights for about £20 on most airlines nowadays.
 


Motogull

Todd Warrior
Sep 16, 2005
11,164
Technology still hasn't quite moved that far yet. SAT coms are on board most aircraft now, but they don't transmit aircraft Telemetry. That is sent via, what is effectively a mobile sim card after landing.

In theory all Telemetry could probably be done in real time by sat comms, they are expensive to use, so while I don't know the reason why they don't, I'd guess the prohibitive costs of sat comms makes it not worth doing for all flights when only the odd one crashes?
It would have saved all that speculation following the Malaysian flight loss.
 




RandyWanger

Je suis rôti de boeuf
Mar 14, 2013
7,458
Done a Frexit, now in London
No technical reason why the data can't be transmitted securely in real time.
 








jackalbion

Well-known member
Aug 30, 2011
6,176
For anyone interested in aviation whether through an accident, incident or just generally, that's a very interesting website. I learned what Cilla Black was like to fly with among other things from there.
My Grandad used to be Cabin Crew and I seem to remember he said to me when I was younger what an awful woman she was.
 




Guinness Boy

Tofu eating wokerati
Helpful Moderator
NSC Patron
Jul 23, 2003
39,557
Up and Coming Sunny Portslade
My Grandad used to be Cabin Crew and I seem to remember he said to me when I was younger what an awful woman she was.
Her bad behaviour was legendary.

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PILTDOWN MAN

Well-known member
NSC Patron
Sep 15, 2004
20,621
Hurst Green














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