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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: HO 208 vs Compact NA tables.
From: Greg Rudzinski
Date: 2021 Jan 27, 15:58 -0800
From: Greg Rudzinski
Date: 2021 Jan 27, 15:58 -0800
Attached is Pub 208 and Trig Log sight reductions done on an index card. Pub 208 is a little less busy and takes a minute or two less time to reduce. The down side is a longer intercept on the plot. The cosecant secant trig log using the law of cosine formula is a good non electronic sight reduction to back-up a pocket calculator. For azimuth I like using a slide rule which is good enough and actually quicker than a pocket calculator.
Greg Rudzinski
File:
