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why plane can not be located in 21st century where so many monitoring / surveillance and GPS tracking systems are available? does black box of planes don't allow GPS tracking?
This could be a hijacking case that went wrong.![]()
Read this carefully...why plane can not be located in 21st century where so many monitoring / surveillance and GPS tracking systems are available? does black box of planes don't allow GPS tracking?
The radar tracking system identifies the plane moving in space but also queries the plane beacon and identifies the plane and its flight information.
Air traffic controllers track commercial jets using two types of radar. "Primary" radar determines a plane's position by analyzing signals that bounce back off the aircraft; the "secondary" or "enhanced" type requests information from each plane, which is then sent by a piece of equipment aboard a jet known as a transponder.
"The first thing that many of the hijackers did [on 9/11] was turn off the transponder,"
The secondary radar is not a true radar in the technical sense. It is a directional query beam and it moves in concert with the primary radar. The primary radar produces the 'skin reflections' off the target. The secondary radar, or query beam, is like the Identification Friend or Foe (IFF) method in principle, and it produces the actual target ID.Radar is a line-of-sight instrument that can’t look over the horizon, so its reach depends on whether it is located on ground level or on a mountain top, and on the altitude of the airplane.
When the transponder is on — as it is required to be on all commercial aircraft — it sends a signal back to air traffic controllers that reports the plane’s speed, direction, altitude and the flights call sign: in this case, MH370.
Because jetliners file flight plans in advance, a controller can check the paperwork in front of him to confirm the type of plane: in this case, a Boeing 777.
Once that transponder is turned off or suffers an electrical problem, the plane becomes no more than a moving blob on the screen, like a Nazi Stuka dive bomber approaching London.
The radar the Malaysian military used to track the missing jet is no more sophisticated than that used by air traffic controllers, but because the controllers focus on transponder signals, their systems are called secondary systems.
“The important distinction is that what 99.9 percent of air traffic controllers see is the secondary radar, which means that the controller is seeing information sent by the transponder of the airplane,” Wallace said.
“Primary radar is what you need to have if you’re trying to see someone who doesn’t want you to see them, like an enemy attacking you,” he said. “So primary radar is just looking at the reflection of the radar beam off the skin of the airplane, and it’s of lesser quality, it doesn’t provide any data.”
I think the pilot of the plane wanted to commit suicide or he intentionally crash the aircraft for some reason as it didn't send any problem on plane .
I am slowly beginning to believe the same...
Looks more like a case of hijacking and Malaysian authorities screwing up , it really sounds like somethings are being covered up...