Raymarine LIGHTHOUSE 4 - Drift Effects on Expanding Square Search Patterns; Creeping Line; Parallel Line Search Pattern

Drifteffectsone
xpandingsquaresearchpatterns
Asthesearchpatternsaccountfordrifttheresulting[Route]maynot
resemblethepatternshownabove.
ExampleDrift
Direction:0°
Speed:0K
ts
Direction:45°
Speed:0Kts
ExampleDrift
Direction:0°
Speed:0
.5Kts
Direction:0°
Speed:1Kts
10.4Creepingline/Parallellinesearchpattern
The[Creepinglinesearchpattern]and[Parallellinesearchpattern]both
coverarectangulararea.Acreepinglinesearchpatternprovidesgreater
coverageoftheareabuttakestimetocoverthewholearea.Aparallelline
searchpatterncancoverthesameareamorequicklywhilststillproviding
reasonablecoverage.
148