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Product Description
An advanced navigation tool, the circular slide rule provides for the solution of time, speed and distance, fuel consumption, conversions, multiplication, and division. On the reverse, the face of the Vectormaster permits rapid solution of problems involv
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4 of 4 people found the following review helpful:
5.0 out of 5 stars
Solves the Vector Triangle,
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This review is from: Weems & Plath Marine Navigation Vectormaster Circular Slide Rule and Navigation Tool (Sports)
This device is very useful in a variety of marine navigation situations [listed below].But that's hard to tell from the product image presented on Amazon. That image shows only one side of the Vectormaster. The side shown is a circular slide-rule set up for time/speed/distance calculations. That's very useful, in and of itself. But the Weems & Plath Navigational Nautical Slide Rule performs that function well at a 30% discount from the Vectormaster. What distinguishes the Vectormaster is the other side of the device. On that side you can: -- translate between Mag and True bearings -- translate between Relative and True bearings -- use vector information to determine CPA of a radar or AIS contact -- use vector information to determine true wind direction from apparent wind, COG, and SOG [well, that may take some 'ooching' for current.] All of this can be done from the cockpit, if you have the data there. Of course, all of this can be done from the Nav-Station. Seems clear to me that I need to post an image of the other side of the Vectormaster. I'll do that.
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