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WEEMS & PLATHROADRule Marine Navigation Aid


ROADRule Marine Navigation Aid

Model # 9234881Mfg # 290


Customer Reviews
In stock online.

Product Description

Identifies the most common U.S. aids to navigation, rules of the road, plus maneuvering and warning signals for U.S. waters. This simple-to-use identification tool takes a large amount of complex information and makes it easy to understand and quick to refer to. Slide-rule design is 16" x 5-1/4" and is stored in a vinyl sleeve. Great for studying for USCG licenses.


ROADRule Marine Navigation Aid

Type NavTool

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.


by PowerReviews
Weems & PlathROADRule Marine Navigation Aid

(based on 1 review)

Ratings Distribution

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  • 1 Stars



Reviewed by 1 customer

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By Rusty

from Portland OR

About Me Gearhead, sailor


  • Accurate
  • Waterproof


  • Easily Damaged By Sun
  • Not Durable

Best Uses

    Comments about ROADRule Marine Navigation Aid:

    It is a great educational and navigation tool ... except they used the absolute worst plastic. It has a warning to "not expose it to excessive heat or sun." What is excessive? A reasonable person might think that means "don't leave it in the sun in a hot car or in a closed up boat" but what it really means is "if you use it on a hot summer day and lay it on the cockpit seat next to you, it will warp and be unusable". That makes it totally unsuitable for the purpose intended, therefor WORTHLESS.

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