very nice map mm43, as usual. what is the average ground speed of this great circle trajectory ?
I tend to agree with OleOle when he suggests that the 18:40 BFO value of the C-channel Rx (during the Call Progress - Test ) around 90 Hz is strongly indicative of a south bearing at 18:40. It may allow the A/C to fly around the Indonesian air space, crossing it only in a tangential way (flying around Banda Aceh). I am running a new MC simulation assuming the south turn is one minute before 18:40 and taking in account the 88 Hz BFO value at 18:40.