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Schrödinger's cat walks into a bar. And doesn't. 
I'll get my coat.
Once you lose your pride the rest is easy.
I would agree with you but then we both would be wrong.
The report of my death was an exaggeration - Mark Twain
Simply Elegant Designs JimmyRopes Designs
I'm on-line therefore I am.
JimmyRopes
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Yeah, I've studied it... in among other misconceptions of elementary science.
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I heard Killing Joke[^] on the muzak at the grocery store today. Am I that old now that it's become gramma music?
TTFN - Kent
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Just wanted to share some technology Information to Architects & developers, while I still protect the IP rights for the same.
I was too lazy to write article on it, and this post is only for those who might be interested in the same.
Others don't mind - I really wont be making any money out of this posting  and ofcourse I am targeting the Lounge visitors.
--------------------------
As advised by Kent:attaching a [ creative commons license ]https://creativecommons.org/[^] to this Post.
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NSA? no, wait... NDA? 
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NDA's are too boring.I doubt it even works. I am Counting on the Code Project Forum.
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Maybe attach a creative commons license[^] to the post? At the very least it will show your intentions, and (IANAL) provide prior art of the idea. At least assuming an admin doesn't delete your post and run to the copyright office.
TTFN - Kent
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done that. Thanks
Regards
sourav
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"Cyber security researcher Ruben Santamarta says he has figured out how to hack the satellite communications equipment on passenger jets through their WiFi and inflight entertainment systems - a claim that, if confirmed, could prompt a review of aircraft security." [^]
“I have diligently numbered the days of pure and genuine happiness which have fallen to my lot: They amount to 14.” Abd-Ar Rahman III, Caliph of Cordoba, circa 950CE.
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Satellite comms? Wow. Fundamental. Not.
My first flight as a twelve year old was on a Boeing 720 to Canada. We didn't have no stinking satellite. When the crew invited me onto the fight deck, they showed me frost on the side window from the -50 degree air, and how the navigator used the stars through a viewing dome in the roof.
Flight controls have come a long way since then; they are 'By Wire', so electric, but they won't be connected to any other system except the batteries and their own, dedicated, presumably hard-embedded computing. The batteries which take on the role of old hydraulic accumulators.
On the other hand....are we talking about modern engineers?
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Agreed, I doubt that the in flight entertainment system would be connected to the throttle and steering yoke. If it was the navigation equipment that he'd hacked into then I could see the potential problem but other than singing "this is the song that will get on your nerves" over the comms there isn't a right lot anybody can do with this.
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Have you never seen Die Hard 2? The could change what ground level was!
Some men are born mediocre, some men achieve mediocrity, and some men have mediocrity thrust upon them.
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That's actually exactly what I was thinking of when I mentioned the navigation equipment 
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That's the worst that could happen.. There you are sipping your drink while watching "Die Hard 2" on your in-flight screen when all of a sudden, everyone's film gets changed to "Love Actually" on repeat, for the full duration of the flight.
Still, better than being blown up isn't it? 
modified 31-Aug-21 21:01pm.
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Yes, but not by much.
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.
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Just trying to think what would be the worst terrorist weapon?
Hitch, The Wedding Planner, Bridget Jones' Diary 2..? 
modified 31-Aug-21 21:01pm.
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Sister Act 2. Any new Star Wars. 
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Weapons of Mass Irritation
modified 31-Aug-21 21:01pm.
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Ever land in Denver. I think many "unhacked" aircraft think Denver's runways are about 10 ft below their actual elevation.
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Simon O'Riordan from UK wrote:
When the crew invited me onto the fight deck, they showed me frost on the side window from the -50 degree air, and how the navigator used the stars through a viewing dome in the roof.
Sorry, that just reminded me of this
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I was waiting for one of you to spot that.
Well done that man.
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Simon O'Riordan from UK wrote: Flight controls have come a long way since then; they are 'By Wire', so electric, but they won't be connected to any other system except the batteries and their own, dedicated, presumably hard-embedded computing.
Mmmmm - possibly not... The yoke & throttles are just the user interface, really - the flight control system has overall control of an airliner's attitude, altitude and speed, so needs to be able to command the control surfaces, the engines...all of the aircraft systems, really. Airliners these days have (slightly modified) ethernet connecting all these mission-critical systems, in order that they can communicate. That network is separated from the cabin network systems, although I'm not sure if the separation is via an air-gap or by using appropriately filtering switches - you'd hope an air-gap...
Oh - and they don't tend to use batteries either - power comes from the engines or (if they're not running) an APU[^].
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
CodeProject MVP for 2010 - who'd'a thunk it!
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"Oh - and they don't tend to use batteries either - power comes from the engines or (if they're not running) an APU[^]."
-Er yes. The engines probably feed the battery. Remember when 787's were grounded? Although direct power(through a regulator) would be more in keeping with redundancy of systems, and is thus far more desirable. I believe the first FBW plane was the Avro Vulcan of the 1950's. They even had to develop new lubricants for the control surfaces as they were flying around 60,000 feet.
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The batteries are only used while other power sources (engines, APU) are off-line. In normal operation, they don't provide power, just (as you say) consume it to be recharged.
Although that would all change if this beastie[^] were to be made...
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
CodeProject MVP for 2010 - who'd'a thunk it!
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Interesting; essentially a turbo shaft powering propulsors. No apparent need for a bypass-type  engine unless the propulsors are supplementary.
Redundancy again.
Loss of the power bus would enable the fan to keep the craft aloft until a diversion could be found.
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