21–29 of 29 posts
Why is it that we can track boats with satellites but not planes? In fact we have a complete image[1] of boat activity in the area at the time of disappearance. It seems as crazy to me as how we can offer in-flight satellite-based wifi but not GPS tracking. [1] http://i.imgur.com/XYvC5gI.jpg
Why is it that we can track boats with satellites but not planes? In fact we have a complete image[1] of boat activity in the area at the time of disappearance. It seems as crazy to me as how we can offer in-flight satellite-based wifi but not GPS tracking. [1] http://i.imgur.com/XYvC5gI.jpg
So we were tracking the plane but then the plane stopped transmitting tracking info for some reason (no idea if they even had it on primary radar). Someone could have turned it off or the plane could have crashed.
Why is it that we can track boats with satellites but not planes? In fact we have a complete image[1] of boat activity in the area at the time of disappearance. It seems as crazy to me as how we can offer in-flight satellite-based wifi but not GPS tracking. [1] http://i.imgur.com/XYvC5gI.jpg
The article says it disappears from radar. When tracking aeroplanes there are two kinds of radar primary and secondary. Primary is actual radar, secondary isn't really radar at all but instead radio transmission of telemetry such as position, altitude, speed etc. This is equivalent to AIS, the system used to track boats that produced your image. So we were tracking the plane but then the plane stopped transmitting tr…
They should position the tracking hardware outside the plane making it relatively tamper-proof mid flight.
Someone on reddit pointed out this happened exactly 804 days after Malaysia Airlines 370 vanished. Weird coincidence.
I could have missed something, but wasn't it 803 days? https://www.wolframalpha.com/input/?i=days+between+8+March+2...
AvHerald is always a good source for factual information that doesn't include rumors and speculations http://www.avherald.com/h?article=4987fb09&opt=0
Why is it that we can track boats with satellites but not planes? In fact we have a complete image[1] of boat activity in the area at the time of disappearance. It seems as crazy to me as how we can offer in-flight satellite-based wifi but not GPS tracking. [1] http://i.imgur.com/XYvC5gI.jpg
Satellites don't track either ships or aircraft, except for huge nuclear-powered RORSATs that watch the fleets of rival superpowers.
However whilst many trans-oceanic aircraft do have VHF / UHF datalink uplinks through the Inmarsat satellite network the majority use line-of-sight UHF transponders ( beacon-tracking ) to supplement radar ( skin-tracking ):
https://fr24.com/2016-05-19/00:28/12x/MSR804/9c0b766
Transponder interrogation is often referred to as "secondary radar" but that's a misnomer that unfortunately took hold in the industry. It relies on 'squitting' a generated response, not on reflections from the aircraft structure.
Someone on reddit pointed out this happened exactly 804 days after Malaysia Airlines 370 vanished. Weird coincidence.
Earlier quoted context omitted.
The article says it disappears from radar. When tracking aeroplanes there are two kinds of radar primary and secondary. Primary is actual radar, secondary isn't really radar at all but instead radio transmission of telemetry such as position, altitude, speed etc. This is equivalent to AIS, the system used to track boats that produced your image. So we were tracking the plane but then the plane stopped transmitting tr…
There is no need for a pilot to be able to disable tracking on a commercial plane. They should position the tracking hardware outside the plane making it relatively tamper-proof mid flight.