WeemsPlath-501V
$81.99
Given the position of a storm and direction and speed of its advance, with the aid of your Vectormaster you may quickly determine a course which will put maximum distance between your vessel and an oncoming storm.
Circular slide rule solves time, speed, distance, fuel consumption, conversion, multiplication and division problems. Face of Vectormaster permits rapid solution of problems involving vectors, such as those encountered in current sailing, determination of true wind direction and force and apparent wind to be expected on other headings. Given position of a storm and direction and speed of its advance, you may quickly determine the course which will put maximum distance between your vessel and oncoming storm. Instruction booklet included.
$211.99
The Coast Guard Kit includes five of the most popular navigation tools that the U.S. Coast Guard uses, all in one convenient package. Overview Five popular items used by the US Coast Guard in one convenient kit stored in a...
$27.99
Weems and Plath Item 101 One of our best selling navigation instruments, the Protractor Triangle with Handle is inscribed with contrast enhancing colors making it easier to use. Utilizing two 45° triangles, the protractor triangle with handle provides a straightforward...
$22.99
Weems and Plath Item #103 The Protractor Triangle is inscribed with black markings. Using two 45° triangles provides an easy method of plotting and performing chart work. Overview Used as a pair to transfer a directional line on a...
$30.99
The Professional Protractor Triangle with handle is larger than other navigation triangles on the market with legs that are 9.312 inches long and a hypotenuse (long side) of 13.125 inches long. Overview Larger and improved version of our popular 101...
