The Orions seem to have only two hours on target. I know that is a lot with the gear they have but (and I know it is probably a silly question.) I thought they could be aerial refueled for extended range. I know extra crew would be needed especially the pilots though the operators could probably get some rest on the transit flight. It seems that an extra two or three hours on station would be of benefit as time is of the essence in any search although sadly in those conditionions I doubt there are any survivors.