engines at any given moment, how fast they burn that fuel. all of those turns that allegedly or possibly happened early in this flight, may have burned more or less fuel than they calculate. on top of which, bear in mind, when you are talking about something this big with that much fuel, every minute it burns fuel makes the plane lighter and changes the physics of where it will fly. the last item to think about in all of this is glide. if you don't know exactly when the fuel ran out or where it was at the time, you also don't know it kept gliding. it immediately nosed down. this plane can glide for hundreds of miles. you have to extend out the possibility that even if you knew exactly where the fuel ran out, it could still be hundreds of miles beyond it. that's why they have narrowed down the space a whole lot. they can't get it tighter. the family is in agony. they don't quite believe the