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Coastal Navigation

Coastal Navigation meets at The Riverboat on Tuesday evenings from 6 to about 8 pm. At the first class, we'll hand out the training chart, parallel rules, and dividers that you'll use for the homework each week, along with the textbook. At the third class, we'll hand out copies of the Eldridge Tide and Pilot Book that we'll use for tide and current problems both in class and in the homework.

We'll begin classes 2 through 6 by going over the homework from the previous week and reviewing the most important concepts and skills. So if you have to miss a class, you can download the Problem Set, read through the class slides and textbook, and be confident of catching up the next week.

CLASS 1: 3/3/2020

TOPICS

Levels of Navigation

Navigator's Responsibility

Navigator's Tools

Latitude and Longitude

The Compass Rose

Chart Symbols

Plotting a Course

Dead Reckoning

CLASS 1 MATERIALS

Problem Set 1 (pdf - year 2020)

Class 1 Slides (2MB pdf)

Suggested reading:  Coastal Navigation chapters 1, 2, 3 & 5

CLASS 2:  3/10/2020

TOPICS

Lines of Position

Compass Bearing

Range

Depth Contour

Compass Correction

Aids to Navigation (Buoys & Lights)

Reliability of Fixes

Danger & Turning Bearings

CLASS 2 MATERIALS

Problem Set 2 (pdf - year 2020)

Class 2 Slides (57MB pdf)

Suggested reading: Coastal Navigation chapters 4, 5, 9, 10 & 12.

CLASS 3: 3/24/2020 (Online via Zoom)

TOPICS

Tidal Forces

Tide Tables

Height of Tide at any time

Rule of 12ths

Correcting for Leeway

Back Bearing

Running Fix

CLASS 3 MATERIALS

Problem Set 3 (pdf - year 2020)

Cuttyhunk Pond chart (jpg) to use in answering question 3

Class 3 Slides (1MB pdf)

Suggested reading:  Coastal Navigation chapters 6, 10 & 12.

CLASS 4:  3/31/2020 (Online via Zoom)

TOPICS 

Reversing Currents

Current Tables

Velocity of Current at any time

The Cape Cod Canal

Current Charts

Set and Drift

The Current Triangle

Solving Current Problems

 CLASS 4 MATERIALS

Problem Set 4 (pdf - year 2020)

Class 4 Slides (250KB pdf)

Suggested reading: Coastal Navigation chapters 7 & 8.

Suggested reading:  Eldridge Tide and Pilot pp 44-45 (Cape Cod Canal regulations).

CLASS 5: 4/7/2020 (Online via Zoom)

TOPICS 

Review of Current Problems

Woods Hole and Quicks Hole

Ranges and Bearings in Current

GPS:

Waypoints, Range & Bearing

Cross-track Error

Speed & Course Over Ground

CLASS 5 MATERIALS

Problem Set 5 (pdf - year 2020)

Class 5 Slides (31MB pdf)

Suggested reading:Coastal Navigation chapter 11.

CLASS 6: 4/14/2020 (Online via Zoom)

TOPICS 

Navigating in Fog

Collision Avoidance

VHF Radio

AIS

Sources of Weather Information

Analysis of Weather Forecasts

Storms, Thunderstorms, and Squall Lines

The Sea Breeze

CLASS 6 MATERIALS 

 

SOME HELPFUL LINKS

Coast Guard Navigation Center

NOAA Office of Coast Survey

Tides

Automatic Identification System (AIS)