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Showing posts with the label ASA 105 Study Guide

ASA 105: Skill 3, Navigator publications

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  3. List the publications required for prudent navigation in the local area including: Large scale charts of the area and Chart #1 https://charts.noaa.gov/InteractiveCatalog/nrnc.shtml Federal Requirements for Recreational Boats 4 20.PDF (uscgboating.org) USCG Navigation Rules and Regulations Handbook https://www.paracay.com/navigation-rules-and-regulations-handbook/ State small vessel regulations, Rhode Island's for example rhodeisland-handbook-entire.pdf (kalkomey.com) Local rules and regulations, if applicable Harbormaster office Local cruising guides Local marine store or online Tide and current tables, (paper or electronic) Eldridge Tide and Pilot available local marine stores Paradise Cay Publishing  List of lights, buoys, and fog signals Eldridge Tide and Pilot available local marine stores Paradise Cay Publishing  Resources are available from a variety of sources.  We offer sample selections above.  Old book stores often turn up out of print books that ...

ASA 105, Skill 11, Ded Reckoning (DR)

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  11. Plot a dead reckoning position on a chart using speed, time and course to steer. Deduced Reckoning or Ded Reckoning or DR ("dead" is a common misnomer) is based only on two factors:  speed and direction.  No outside influences are considered. For example:  If you proceed due North at 6 knots in one hour your DR position is 6 nautical miles due North of the starting point. Use Chart 1210Tr for this exercise.   Make a DR plot of three legs from Cleveland Ledge Light to Lone Rock at Quick's Hole, transit Quick's Hole, and finish at the entrance buoy for Menemsha Harbor, Bell "1." Assume a speed over ground of 6 knots. Mark of course Heading to next Distance to next Time to next R "14" Fl R 2.5 sec 215 deg T 12.2 nm 2 hrs 2 min BR Qk Fl G 167 deg T 2 nm 20 min G "1" Fl G 4 sec Bell 143 deg T 5.3 nm 53 min "1" Bell 19.5 nm 3h 15 m in transit Your DR plan looks something like this.  Knowing one's departure time one can estim...