NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Nasr
From: Geoffrey Kolbe
Date: 2009 Mar 24, 07:02 +0000
From: Geoffrey Kolbe
Date: 2009 Mar 24, 07:02 +0000
Robert Eno wrote about the NASR
The instructions in the NA on these tables are dire and a complete turn-off for anyone contemplating using these tables for the first time. But the boys at StarPath school of navigation in Seattle worked up a nifty worksheet where all of the above can be accomplished in two minutes flat - with a little practice :-) I believe the worksheet is now used in Power Squadron trainings.
When using the StarPath worksheet, the advantages of the NASR become clear. You are working with angles all the time and never heading off into log-land where one is likely to become disorientated and lost.
That said, it seems that whatever sight reduction system you use - whether it be the NASR, the Bygrave slide rule, or HO whatever-takes-your-fancy - as a general rule it takes about two minutes to perform a sight reduction, once the system is practiced.
Geoffrey Kolbe
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Navigation List archive: www.fer3.com/arc
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If you want to gain an understanding as to how it works, do the following:
-Find the last digit in Pi.
-Split the atom using only items you can find in your kitchen.
-Define the universe. Provide three examples.
-Invent cold fusion for use as an unlimited energy source
Robert
The instructions in the NA on these tables are dire and a complete turn-off for anyone contemplating using these tables for the first time. But the boys at StarPath school of navigation in Seattle worked up a nifty worksheet where all of the above can be accomplished in two minutes flat - with a little practice :-) I believe the worksheet is now used in Power Squadron trainings.
When using the StarPath worksheet, the advantages of the NASR become clear. You are working with angles all the time and never heading off into log-land where one is likely to become disorientated and lost.
That said, it seems that whatever sight reduction system you use - whether it be the NASR, the Bygrave slide rule, or HO whatever-takes-your-fancy - as a general rule it takes about two minutes to perform a sight reduction, once the system is practiced.
Geoffrey Kolbe
--~--~---------~--~----~------------~-------~--~----~
Navigation List archive: www.fer3.com/arc
To post, email NavList@fer3.com
To , email NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---