Quote:
Originally Posted by sixman
All very odd. Has to be someone who knows what they are doing to turn off transponders.
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As well as turning off the transponder they would have to log off the controller pilot datalink communications system. Is a satellite tracking system.
The military radar which followed the aircraft after that would be secondary radar which is the original form of radar showing a blip only, ie no digital info.
The "black boxes" are actually orange for better visibility for searchers.