Sonobuoy placement, or rather misplacement is simple maths. With a not unrealistic 36 kt wind a sonobuoy will drift 20 yards per second. Dropped from height it could be a mile away from the computer mark. Adjacent buoys might be subject to slightly different wind speed or direction. A neat and evenly spaced line on the tac display would be anything but.
Accurate post drop determination of position, without on topping each buoy, will reveal any gaps.
Once at low level errors are smaller but without accurate location a torpedo might be dropped outside target acquisition range.
Last edited by Pontius Navigator; 14th Jun 2017 at 17:01.
Reason: Drated spill chucker