About SOSUS Handover, this one is kinda tough at first. The first sub is comparable easy to find. Now for the second, if I remember right, sometimes the 2nd sub won't spawn but the mission will be over after the first one ... still given the 2nd sub is out to be hunted ... climb to HIGH altitude and go max speed ... that will give you an additional 100kts speed (460 kts or so instead of 360 kts at low/mid altitude) thus you will be at the other place faster. Now you have to break out your calculator ... take the line and the time where the sub was last seen as a base (do they give you an estimate on the speed of the sub? if so all the better) now calculate the distance the sub could have covered in a straight line with 10kts and 15kts speed in the time since the last sighting and your arrival in the area. That gives you 2 circles ... Max and Min distance for the sub. Now you can go the cheap way and drop a line of buoys right between those circles or you drop a line on either distance and if necessary make a third line in the middle (again). In most of the cases you should now be able to aquire the sub. Once you have him on one buoy (or more) don't let him slip away.
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