Sperry Marine Visionmaster FT ECDIS, User Manual

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Routes ECDIS User Guide
8-52 65900012
Search and Rescue
Search and Rescue (SAR) patterns are specialized routes that can be used
to patrol a given area.
The following SAR search patterns are supported (see descriptions and
figure below):
•
Parallel Line - formed from a series of parallel legs, moving out
from left or right of the initial heading.
•
Creeping Line - formed from a series of parallel lines at right
angles to the initial heading, placed forward in the same direction
as the initial heading.
•
Expanding Box - formed from a series of expanding squares
centred upon the start point of the search. The size of the square is
increased every four legs.
•
Sector Search - formed from a series of three equilateral triangles
centred on the initial start position of the pattern.