Determining the Ships Position by Running Fix
Occasions will arise when it isnt possible to shoot three or more objects
to fix the ships position. In such instances, a single LOP shot on a
single object can be advanced to a common time, resulting in a running
fix. Advancing a LOP requires nothing more than moving the LOP
forward on the same bearing as the ships course and using the ships
speed without consideration of any current present.
Figure 8-25. Advancing a LOP.
A running fix is labeled in the same manner as a visual fix except that
the abbreviation R. fix is put beside the fix and fix time.
Figure 8-25 shows an example of how a LOP is advanced (moved) to
obtain a running fix.