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  #61  
Old 10th March 2014, 02:53 PM
Ash W Ash W is offline
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Yes it would still show up on radar. All the transponder does is identifies the a/c.
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  #62  
Old 10th March 2014, 03:08 PM
Henning S Henning S is offline
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Quote:
Originally Posted by Laurent Sanhard View Post
sounds like a silly question, but what if the transponder was shut off in the cockpit , is it possible the aircraft would have been forced to land in another country ie Russia or somewhere remote , surely if it crashed into the ocean , another plane or boat would have reported seeing a fire , surely some debris would have floated to the surface by now ,
did the aircraft disappear from Radar ?? would it still show up on Radar if the transponder was turned off ??
The aircraft would still appear on the radar but it would not send out its identification anymore. So on the radar it would not appear with its flight number but simply as a dot or something like that.
What it disappears from are radar websites like FlightRadar24 because these websites are not showing real radar information but ADS-B signals. These signals are actively transmitted by the plane if the plane's transponder is on. If the transponder is switched off, the plane doesn't transmit the ADS-B signal anymore.
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  #63  
Old 10th March 2014, 03:27 PM
Hugh Jarse Hugh Jarse is offline
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Quote:
Originally Posted by Ash W View Post
Yes it would still show up on radar. All the transponder does is identifies the a/c.
No, it would not - unless there is a primary radar covering the area the aircraft was in, and even then it may not show up on a controller's display. There are many factors affecting the usefulness of primary radar, such as range limitations, rain attenuation or obstacles in view of the antenna, which is why it has limited use today.

Hence the reason we have SSR and ADSB today. Primary radar had too many limitations
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  #64  
Old 10th March 2014, 03:32 PM
Laurent Sanhard Laurent Sanhard is offline
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still remains a mystery then ?? news now reports of 5 pax that checked in but did not board the flight , at the very least it raises serious security concerns at KL airport !
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  #65  
Old 10th March 2014, 03:36 PM
Arthur T Arthur T is offline
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Warning: Prior reading to the following post, please note all accurate inforamtion relating to MH370 incident must refer to official statements from Governments & the Airline

According to Oriential Daily Hong Kong

http://hk.on.cc/int/bkn/cnt/news/201...17011_001.html

(If you cannot read Chinese, please use Google translate thank you)
(The picture is included in the news report when you click on the link)

there is a photo being circulated over the internet regards to the wrackage of the plane. This perhaps why ABC reported earlier.

However please note from the photo itself it looks like the plane has winglets attached at the end of the "wing". We all know all B777s, including B777-8X and B777-9X do not have winglets so I highly doubt the accuracy of that post.
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  #66  
Old 10th March 2014, 03:42 PM
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Alex T Alex T is offline
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Quote:
Originally Posted by Arthur T View Post
[B]
However please note from the photo itself it looks like the plane has winglets attached at the end of the "wing". We all know all B777s, including B777-8X and B777-9X do not have winglets so I highly doubt the accuracy of that post.
I believe the photo is the Lion Air overrun at Denpasar last year! - http://s1.reutersmedia.net/resources...=CDEE93E0BFK00
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  #67  
Old 10th March 2014, 03:45 PM
Arthur T Arthur T is offline
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Thanks mate. That confirms my view that this is not accurate. I think we should notify the newspaper to deal with the photo. Clearly not cool for people to send these false stuff around.
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  #68  
Old 10th March 2014, 05:33 PM
damien b damien b is offline
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Lots and lots of speculation on what appears to be a horrific event. The release of information on damage that was repaired by Boeing to a wing tip I guess adds to the speculation.

The lack of debris, no claims by terrorist cells of destroying MH370, no mayday calls, no transmission of emergency beacons all adds to the mystery.

Personally, structural failure or in-flight explosion are most likely but until investigators get to the FDR and CVR, we will never know.
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  #69  
Old 10th March 2014, 06:05 PM
Thomas Collins Thomas Collins is offline
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Where are the "pings" from the FDR, CVR and ELT…
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  #70  
Old 10th March 2014, 06:12 PM
Tamara S Tamara S is offline
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Wondering the very same thing, you think the ELT would have gone off.

You have to wonder.... has this a/c been hijacked and flown somewhere and is sitting on some dustry runway with a plane load of pax?

I need to get the Jepps out and see where I could get with the fuel.
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