Expandingsquaresearchpattern
TheExpandingSquaresearchpatternisanoutwardsspirallingsquarepattern,andisparticularly
suitedtoverydetailedandmethodicalsearches.
Note:
TheSearchpatternstak
edriftintoaccount,andthereforetheresultingroutemaynotresemble
thepatternsshown.
Creatingane xpandingsquaresearchpattern
TocreateaExpandingSquaresearchpatternfollowthestepsbelow:
1.SetCommenceSearchP oint(CSP)
i.Manuallyinputthe CSPcoordinates;a Rangeand Bearingaredisplayedtodirectyourvessel
towardsit.
ii.Alternatively,setthe CSPasyourvessel’scurrentlocationbyselectingthe
(1)
CSPShortcut
button.
2.SetDrift
i.DroptheDatumMarkerinthewaterandselect Markerdropped.
ii.Waitforthe DatumMarkertodriftthroughthewater.
Chartapp
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