Weems and Plath Vectormaster Slide Rule
The Weems and Plath Vectormaster Slide Rule is a circular slide rule that can be used effectively to show time, speed and distance, fuel consumption, conversions, multiplication and division solutions to calculations.
The face of the Vectormaster Slide Rule permits the rapid solution of problems involving vectors such as those encountered in current sailing, determination of true wind direction and force as well as apparent wind to be expected on other headings.
Given the position of a storm and the direction and speed of its advance, with the aid of your Vectormaster Slide Rule you may quickly determine a course which will put maximum distance between your vessel and an oncoming storm.
The Weems and Plath Vectormaster Slide Rule is supplied with an instruction booklet included.
The Weems and Plath Vectormaster Slide Rule is a circular slide rule that can be used effectively to show time, speed and distance, fuel consumption, conversions, multiplication and division solutions to calculations.
The face of the Vectormaster Slide Rule permits the rapid solution of problems involving vectors such as those encountered in current sailing, determination of true wind direction and force as well as apparent wind to be expected on other headings.
Given the position of a storm and the direction and speed of its advance, with the aid of your Vectormaster Slide Rule you may quickly determine a course which will put maximum distance between your vessel and an oncoming storm.
The Weems and Plath Vectormaster Slide Rule is supplied with an instruction booklet included.
