At 20:11 and about S4.0E93 after 1701 miles [318 + 229 + 334 + 569 + 251] @485mph and 3.5 hours he would have realized that he did not have the fuel to make it to New Amsterdam Island [S37.84E77.55] — another 2362 miles — and broken it off — but to where???
to the east —
http://www.duncansteel.com/wp-content/uploads/2014/04/V_2D_2.png
In order to have hit the Inmarsat rings on schedule from 20:11 @ S4E93 to New Amsterdam Ile the plane that had been averaging 485mph would have had to travel @ 560mph for the next 3 hours and then 682mph for the last hour in order to hit that last ping ring at New Amsterdam Ile — and that speed is just not possible.
Fastest he travelled was just before that — 830 miles over 1:40 or 498 mph just after turning south.
He angled east to hit those last Inmarsat pings — but how far east???
