But how would the Malaysian Air flight 1) know that the Singapore Air flight was there? Was it planned in advance? What if the Singapore Air flight was delayed?
What if the host to flight MH370 aircraft was in on the plot?
It would have been possible for them to find out if the flight was delayed before they went green for the operation. Simple phone call to someone at the airport.
If you read the “theory” then flight mh370 could have used the transponder in the other plane to establish a vector to that plane and come up behind it. Apparently, according to the theory, these planes have some means of telemetry to avoid collision, the theory is they used this to precisely hone in. MH370’s transponder being off the other plane would never know it had a tailing plane.
Some recreational boats have arrays that can establish the direction of a radio transmission, you only need they antennas in a triangular pattern and exacting time measure for each signal received.
Using the transponder to track down the plane to tail behind => It’s the same principle by which a cell phone tower can approximate the location of you cell phone. Capture the signal from three points (an antenna array) and it’s just physics and trigonometry to calculate you location.
Why not just google it?