Malaysian airlines has lost a 777

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jaedaliu

Platinum Member
Feb 25, 2005
2,670
1
81
That doesn't make sense. So if a plane or object does not have a radio or transponder radars cant detect them?

Nobody's looking at millions of square miles of ocean super carefully. There's a lot of space out there, and the further out you look, the less resolution you have on your radar.

I would also imagine that once a civilian aircraft has been properly identified, and it's flying the way it's supposed to, they would stop looking at it very carefully.
 

xanis

Lifer
Sep 11, 2005
17,571
8
0
Nobody's looking at millions of square miles of ocean super carefully. There's a lot of space out there, and the further out you look, the less resolution you have on your radar.

I would also imagine that once a civilian aircraft has been properly identified, and it's flying the way it's supposed to, they would stop looking at it very carefully.

According to this article, the 777 has something called ACARS: http://en.wikipedia.org/wiki/Aircraft_Communications_Addressing_and_Reporting_System I figured there had to be something like this on planes, but I wasn't sure. The more you know.
 

Svnla

Lifer
Nov 10, 2003
17,986
1,388
126
Anybody also thinks that Malaysia is hiding something? My gut feeling is that their radars had a problem or were malfunctioning at the time of the incident. There is no way Vietnam or China or any other nearby country would have missed the plane on their radars.

China is too far away to use its radar.
 
Oct 25, 2006
11,036
11
91
I swear nobody reads what I write, even though I'm trying to add as much technical data as possible. And then I wonder why people seem so ignorant of aircraft...

Ground control primary radar only extends up to 50-100 miles or so outside the shore. Primary radar is standard radar stuff, it only tells you exactly how far the plane is from the radar installation, nothing else. And they only use it to track airplanes near land. There are hundreds of flights around major airways every hour, a ton of data.

The ATS/ACARS is what airplanes use to broadcast their position/speed/altitude back to ground control when outside of primary radar range. This only happens like once a minute. The problem with this crash is that ATS/ACARS is always supposed to be on.

The fact that it turned off usually means that the power was cut to the system in midair. Either by the pilot/hijacker or fire/bomb/catastrophic hull failure cut the power lines to the system. This system is not powered under backup power.

I personally believe that the plane suffered some sort of catastrophic explosion/failure in mid air due to the transopnder turning off randomly, however the complete and total lack of debris anywhere in the entire area is making this seem less likely.

I currently really have no idea what to believe in this case. I still am biased torward plane crashing in the sea and somehow the debris sinking before rescue workers could find it, but thats all baseless conjecture.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,354
8,444
126
Posted in the P&N thread:

http://www.dailymail.co.uk/news/art...-Malacca-Strait-Malaysian-source-reveals.html

According to Malaysian military, they tracked the plane for 100 miles after it lost contact. And it was headed in the wrong direction.

yeah saw this in the article quoted above:
Straits of Malacca
that's on the other side of the malay peninsula.



as to radar, there isn't blanket radar coverage. there's also lots of dead zones on things like flightradar24.
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
Where are you finding this? None of the major news sites are reporting that.

There are tons of metal debris in the ocean. So far anything even remotely possible has been linked to this lost bird.

With 4 people of questionable identity (rumor is terrorist ties) and 2 forged passports, the worst is probably true.

Now whether or not the plane was lit up/blown out of the air/forced into the ocean/landed in an foreign nation or not has yet to be discovered.

That article with everyone talking about cell-phones was spot-on how clueless our masses are. I have been on a plane where some chick was accusing the airlines of blocking her signal now that it was safe to use electronics.

Also consumer electronincs/cell phones really don't interfere with modern planes, they just want you to be giving your full attention to the most dangerous take off and landing periods in case things go south. Last thing they need is some asshat trying to finish his final level of Hello Kitty Beach Volleyball when he is supposed to be opening the emergency exit.
 

88keys

Golden Member
Aug 24, 2012
1,854
12
81
I'd have to wonder whether you would even have cell signal that far away from land.
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
Who are the other 2 other than the 2 that boarded with the stolen passports?

They have told us who any were. There were a total of 4 people that several articles have mentioned that had 'questionable' identities.

Who they are and what that means is anyone's guess.

Here is just one of the articles stating that: http://mg.co.za/article/2014-03-09-no-south-africans-on-missing-air-malaysia-plane

Our local news covered that as well. Not sure why if one's identity is suspect it's also not shared with the people.
 

alkemyst

No Lifer
Feb 13, 2001
83,769
19
81
I'd have to wonder whether you would even have cell signal that far away from land.

You seriously have to wonder? Would you say cell service 30k feet above a city like New York or Los Angels would be normal?
 

jaedaliu

Platinum Member
Feb 25, 2005
2,670
1
81
You seriously have to wonder? Would you say cell service 30k feet above a city like New York or Los Angels would be normal?

I would. Having service 30k feet away from a cell tower is very different than having service 200 miles from the nearest cell tower. You're comparing apples and atoms.
 

Ns1

No Lifer
Jun 17, 2001
55,418
1,599
126
I swear nobody reads what I write, even though I'm trying to add as much technical data as possible. And then I wonder why people seem so ignorant of aircraft...

Ground control primary radar only extends up to 50-100 miles or so outside the shore. Primary radar is standard radar stuff, it only tells you exactly how far the plane is from the radar installation, nothing else. And they only use it to track airplanes near land. There are hundreds of flights around major airways every hour, a ton of data.

The ATS/ACARS is what airplanes use to broadcast their position/speed/altitude back to ground control when outside of primary radar range. This only happens like once a minute. The problem with this crash is that ATS/ACARS is always supposed to be on.

The fact that it turned off usually means that the power was cut to the system in midair. Either by the pilot/hijacker or fire/bomb/catastrophic hull failure cut the power lines to the system. This system is not powered under backup power.

I personally believe that the plane suffered some sort of catastrophic explosion/failure in mid air due to the transopnder turning off randomly, however the complete and total lack of debris anywhere in the entire area is making this seem less likely.

I currently really have no idea what to believe in this case. I still am biased torward plane crashing in the sea and somehow the debris sinking before rescue workers could find it, but thats all baseless conjecture.

tl;dr

Posted in the P&N thread:

http://www.dailymail.co.uk/news/art...-Malacca-Strait-Malaysian-source-reveals.html

According to Malaysian military, they tracked the plane for 100 miles after it lost contact. And it was headed in the wrong direction.

well now, THAT'S interesting.
 
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lozina

Lifer
Sep 10, 2001
11,711
8
81
Yeah that is pretty crazy.

So one scenario could be... an event occurred which was serious enough to disrupt the transponders and communications and navigation equipment while still allowing the jet to fly. The pilots turned around hoping to get back to the airport but were basically flying blind and ended up going the wrong direction and crashing way out side the original search area which would explain why nothing was found.

Though don't all jets at least have some rudimentary navigation equipment to be able to manually fly without electronics, i.e. a simple compass??

I dunno, I still think a wormhole swallowing them up is the best explanation.
 
Oct 25, 2006
11,036
11
91
Yeah that is pretty crazy.

So one scenario could be... an event occurred which was serious enough to disrupt the transponders and communications and navigation equipment while still allowing the jet to fly. The pilots turned around hoping to get back to the airport but were basically flying blind and ended up going the wrong direction and crashing way out side the original search area which would explain why nothing was found.

Though don't all jets at least have some rudimentary navigation equipment to be able to manually fly without electronics, i.e. a simple compass??

I dunno, I still think a wormhole swallowing them up is the best explanation.

Doubt it. The chances of every system failing like that outside a plane breakin in half sceneario are very nil. There are like 5 backup power sources in the case of a power failure. And the cables all run through a common conduit. If the cables to every single instrument are broken, that same break would have effected handling, and you have a dead plane anyway.

Also changing course in an airplane is extremely dangerous because of how crowded airspace is and usually requires ground control clearance, and if out of range, requires the plane to ping all other planes in the area to notify them of that change.

A passanger plane actually collided into another plane at cruising altitude a decade or two back because ground control made a mistake in ordering a plane to change altitudes.
 

lozina

Lifer
Sep 10, 2001
11,711
8
81
Doubt it. The chances of every system failing like that outside a plane breakin in half sceneario are very nil. There are like 5 backup power sources in the case of a power failure. And the cables all run through a common conduit. If the cables to every single instrument are broken, that same break would have effected handling, and you have a dead plane anyway.

Also changing course in an airplane is extremely dangerous because of how crowded airspace is and usually requires ground control clearance, and if out of range, requires the plane to ping all other planes in the area to notify them of that change.

A passanger plane actually collided into another plane at cruising altitude a decade or two back because ground control made a mistake in ordering a plane to change altitudes.

What about something like EMP ? Would an EMP powerful enough to destroy the electronics on a plane still allow the plane to be flown, while removing all ability of that aircraft to communicate and navigate properly?
 
Oct 25, 2006
11,036
11
91
What about something like EMP ? Would an EMP powerful enough to destroy the electronics on a plane still allow the plane to be flown, while removing all ability of that aircraft to communicate and navigate properly?

I guess its possible if the Chinese figured out a way to do above ground nuclear testing without the US knowing about it.

And if they managed to just target that specific 777 without effecting every other plane in the area.

Also planes are meant to survive lightning strikes, they're pretty well shielded against those kinds of effects.
 
Last edited:

Ns1

No Lifer
Jun 17, 2001
55,418
1,599
126
What about something like EMP ? Would an EMP powerful enough to destroy the electronics on a plane still allow the plane to be flown, while removing all ability of that aircraft to communicate and navigate properly?

lol, I was just thinking that

 

disappoint

Lifer
Dec 7, 2009
10,132
382
126
I dunno, I still think a wormhole swallowing them up is the best explanation.
No.

What about something like EMP ? Would an EMP powerful enough to destroy the electronics on a plane still allow the plane to be flown, while removing all ability of that aircraft to communicate and navigate properly?
Nope.

Yeah that is pretty crazy.

1 out of 3 ain't bad right?
 

lozina

Lifer
Sep 10, 2001
11,711
8
81
I guess its possible if the Chinese figured out a way to do above ground nuclear testing without the US knowing about it.

And if they managed to just target that specific 777 without effecting every other plane in the area.

Also planes are meant to survive lightning strikes, they're pretty well shielded against those kinds of effects.

Well, it doesn't have to be nuclear bombs. Check out this piece from the wiki article on EMP:

Non-nuclear electromagnetic pulse (NNEMP) is a weapon-generated electromagnetic pulse without use of nuclear technology. Devices that can achieve this objective include a large low-inductance capacitor bank discharged into a single-loop antenna, a microwave generator and an explosively pumped flux compression generator. To achieve the frequency characteristics of the pulse needed for optimal coupling into the target, wave-shaping circuits and/or microwave generators are added between the pulse source and the antenna. Vircators are vacuum tubes that are particularly suitable for microwave conversion of high-energy pulses.[3]
NNEMP generators can be carried as a payload of bombs, cruise missiles (such as the CHAMP missile) and drones, with diminished mechanical, thermal and ionizing radiation effects, but without the political consequences of deploying nuclear weapons.
The range of NNEMP weapons (non-nuclear electromagnetic pulse bombs) is much less than nuclear EMP. Nearly all NNEMP devices used as weapons require chemical explosives as their initial energy source, producing only 10−6 (one millionth) the energy of nuclear explosives of similar weight.[4] The electromagnetic pulse from NNEMP weapons must come from within the weapon, while nuclear weapons generate EMP as a secondary effect.[5] These facts limit the range of NNEMP weapons, but allow finer target discrimination. The effect of small e-bombs has proven to be sufficient for certain terrorist or military operations. Examples of such operations include the destruction of electronic control systems critical to the operation of many ground vehicles and aircraft.[6]
 

davmat787

Diamond Member
Nov 30, 2010
5,512
24
76
A passanger plane actually collided into another plane at cruising altitude a decade or two back because ground control made a mistake in ordering a plane to change altitudes.

Are you referring to the DHL-Aeroflot (or some Russian carrier, it was a Tupolev) midair collision that happened over France IIRC? If so, that was due to a combination of errors, as most aviation accidents are as I am sure you know.

Anyway, the controller was alone and not paying enough attention, and was prosecuted for it. The two airlines TCAS systems gave the pilots adequate warning and proper instructions to avoid collision. But the ATC, finally noticing at the last minute the two were going to collide, gave the opposite instructions of the TCAS to the two pilot crews.

The pilots decided to listen to the ATC, and collided midair. Had they listened to the TCAS, they would have avoided the midair collision.

All lives were lost of course, and the Russian airliner was carrying something like 80% young students on their way to some cultural exchange.

Sad event, and now pilots are instructed to always listen to the TCAS over ATC instructions from what I understand.
 
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