...explains how investigators figured out the possible flight paths of the missing aircraft.
The 40degree arcs are greatly misunderstood, much of the press seem to think the plane was flying ALONG one of these arcs. As I understand it, these arcs show all the possible positions of the last contact, NOT the route.
Having said that, if you have all the previous transmissions (pings), and the last radar position, then assuming[Big IF] a constant speed and direction, you could come down to a choice of two actual routes AND two choices for the last actual position.
Anyone got the full list timestamps and latitude?
(All providing of course they are not constantly 40degrees, in which case, it is flying round the arc, and we have no final fix)