segunda-feira, 11 de abril de 2016

In the middle of the OCEAN - My favorites quotes from the famous Bowditch

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"The discussions above make it clear that the Global Positioning System provides the most accurate positions available to navigators today. They should also make clear that the most accurate positioning information is available to only a small fraction of the using population: U.S. and allied military. For most open OCEAN navigation applications, the degraded accuracy inherent in selective
availability and the inability to copy the precision code
presents no serious hazard to navigation. A mariner seldom
if ever needs greater than 100 meter accuracy in the middle
of the OCEAN."

CHAPTER 11. SATELLITE NAVIGATION

BOWDITCH

THE AMERICAN PRACTICAL NAVIGATOR



Leia uma explicação para esta série de 30 posts clicando aqui


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