Originally Posted by
onetrack
The revised crash zone for MH370 by the CSIRO is indicative that all the JACC/ATSB calculations on distance travelled were wrong - despite vast amounts of input by so called "specialists" and "experts".
The indications are now that the aircraft was suffering from excessive drag, probably caused by some kind of damage to fuselage or wing panels, which led to increased fuel burn or a lower cruise speed.
The revised search area doesn't necessarily indicate that the DSTG/ATSB calculations on distance travelled were wrong at all; what it suggests is that their assumptions about the timing of the final major turn south and/or the speed flown on the final leg south were wrong. And we always knew that the timing of the final major turn was a best guess based on the BFO data associated with the 1840 UTC air-to-ground phone call.
And there's nothing to suggest an increased fuel burn; an increased fuel burn would have resulted in fuel exhaustion before 0017 UTC.