NavList:

I am a user of the S Tables, a very compact set of tables (about 10 pages) that allow reduction of an altitude of any body directly from the DR position (available at Celestaire.com).  The tables include a very good set of instructions with a clear explanation how the navigational triangle is solved by way of the work forms (also included).  The work forms also serve as a guide to using a scientific calculator to reduce the sight.

The S Tables include an “S value” and “C value” for every angle to a precision of 0.’1.  By following the forms, it is clear that the “S Value” allow one to multiply or divide sines and cosines of angles by adding or subtracting the S or C value in the table. It would seem that these S Table values should be the log of the sines and cosines, but when I try to replicate them with a calculator I can’t do it.

My question is: What are S Table values?

Thanks

Arthur