Figure 12-14.—Amphibious grid reference system.
not in the center of the proper lane and/or not
Grid positions normally are transmitted every
progressing along the lane according to schedule,
minute from the rendezvous area to 200 yards from the
corrects the position and movement of the wave.
beach unless corrective action is required, in which
Control officers supplement grid positions with
case they are transmitted more frequently. Grid
vectors and “early” or “late” information as
positions will be provided once each minute in periods
necessary.
of low visibility, from the predesignated assembly
12-19
