Originally Posted by
rigbyrigz
Reuters March 14:
"The military track suggests it then turned sharply westwards, heading towards a waypoint called "Vampi", northeast of Indonesia's Aceh province and a navigational point used for planes following route N571 to the Middle East."
...not sure where poster suggesting right turn at IGARI got their info?
Did you care to watch the flightradar24 playback?
Anyway, here is the text description of the behavior of MAS370 from Aviation Safety:
The Boeing 777-2H6ER took off from Kuala Lumpur Interational Airport's runway 32R at 00:41 and climbed to a cruising altitude of FL350.
Data of flight tracking website Flightradar24 show that the flight flew a 25° course towards the IGARI waypoint. Overhead IGARI, at 01:20, the flight changed course to 40°. Last contact recorded by Flightradar24 was at 01:20 at 175 km NNE off the Malaysian coast and 223 km SW off the Vietnamese coast, just within the Singapore FIR, 6 km northeast of IGARI. Malaysian officials reported that the civial radar lost contact at 01:30 at a position 2 km south of IGARI.
I repeat my question: how can an aircraft make a clear right turn (from 25° to 40°) after a waypoint if the alleged next point pre-programmed in the FMC requires a left-turn?