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Skipper’s Onboard Source

The Nautical Know How Skipper’s Onboard Source This is the boating information you need to know! Now you can take it with you. Eighteen double-sided, laminated cards (plus a cover) (3.5 by 9 inches) on a ring that allows easy access and the ability to add new information. Aids to Navigation including IALA-B Federal System,…

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Distance Off and Quick EP’s

There are many times when knowing the distance off to a fixed object will be of considerable value to the navigator making his way through crowded channels or just cruising off the coast on a sunny afternoon. You may want to print this section out and put it in your navigation notebook for future reference….

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Distance Off and Quick EP’s – Answers

You are cruising south east off Sachuest and your binnacle compass reads a course of 282º. Your boat speed is 5 kts. On this heading you have a deviation of 3ºE. You note on the chart the rocks about .8 nm south of Sachuest and want to make sure you don’t hit them. You quickly…

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Answers to Mini-Chart Lesson 2

Coastal Navigation Course Chapter IX Answers to Mini-Chart Lesson 2 Question 1 – Steps & Calculations: Find Easton Point. If you had a Coast Pilot it would be helpful. Convert the Magnetic bearing to True direction. 044 M – 14 W = 030 T Plot this true LOP from Easton Point by finding 030 T…

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Answers to TVMDC Practice Lesson

Coastal Navigation Course Chapter VII Answers to TVMDC Practice Lesson Remember: Going from True to Compass Add West and Subtract East Going from Compass to True, Subtract West and Add East True Variation Magnetic Deviation Compass 1. 070° 5° E 065° 0 065° TVMDC + W – E – 070 – 5 = 065 +/- 0…

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Distance, Speed, Time Worksheet

Coastal Navigation Course Chapter VI Distance, Speed, Time Worksheet Remember: Convert Minutes to Decimals (and back) and Round Answers Distance: Speed: Time: 1. 15.0 nm 8.6 1 hour 45 minutes = 1.75 hours Calculation: D ÷ T = S – 15.0 nm ÷ 1.75 hours = 8.57 kts 2. 12.5 nm 7 kts 1 hour 47…

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Answers to Relative Bearings Practice Lesson

Coastal Navigation Course Chapter IX Answers to Relative Bearings Practice Lesson 1. Brenton Reef light bears 225° T. Your current course is 059° T. The relative bearing of Brenton Reef light is 166°. True Bearing – Ship’s Heading = Relative Bearing – 225 – 059 = 166 2. Cleveland Ledge Channel light bears 325° relative. Your course…

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Navigation Basics

Nautical Know How – Coastal Navigation Course Navigation Basics This information supplements the Nautical Know How Coastal Navigation Textbook. How to use parallel rulers   How to use dividers   Register for the Navigation Course

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How to use dividers

Navigation Tools How to use dividers Using dividers and the latitude scale on your nautical chart, you are able to measure distance in nautical miles. (Remember, do not use longitudes to measure distance. Longitude lines converge at the poles and the distance between them changes relative to your position on the earth.) One minute equals…

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How to use parallel rulers

How to use parallel rulers Parallel rulers are used to plot direction on your nautical chart. They are, essentially, two straight-edges hinged so that they maintain the same angle. By alternating the moving edge, and securely holding down the non-moving edge, you can move the rulers about the chart while still maintaining the same angle….

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