CNN Anderson Cooper 360 March 20, 2014 00:21:00
Flight takeoff, it's such a huge variable. so what we normally do in the u.s. navy, when we come upon this situation we immediately launch a helicopter and we establish a central point where we think the last known contact was. that's called a datum. so from this datum we calculate the currents and the winds. and that is why these search areas slowly expand. and so for what we usually do for a search and rescue you look at that first 72 hours. it can grow fairly big but within your helicopter range. well, now that is completely a different scenario. and the current and the winds and the set an...
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