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Re: Navigation Survey

Subject: Re: Navigation Survey
From: Michael Wescott (wescott_mike@XXX.XXX)
Date: Fri May 25 2001 - 12:30:55 EDT

> Navigation-L Survey
>
> a) Dead Reckoning
>
> What is the method used most?
> Mid-Latitude-----: yes
> Mercator Sailing-: occasionally
> Rhumb Line-------:
> Other(Name?)-----: sailings tables (Bowditch Vol 2)

Choice of DR method depends on circumstances with mid-latitude
preferred since it is quite easy with a simple scientific calculator.

> b) Sight Reduction
>
> Which is your primary Sight reduction method?
> Computer Program(Name?)--------:
> Calculator(Name?)--------------: yes (varies)
> Short Navigation Tables,
> H.O. 211 etc.(Name?)-------: HO 211 and variations
> Standard Navigation Tables,
> 229, 214 etc.(Name?)-------:
> Other(Name?)-------------------:

I use several calculators that can handle Deg Min Sec input but are not
otherwise programmed especially for navigation. If I weren't so lazy
I'd avoid using electronic aids altogether and stick to pencil'n'paper
methods.

I will also use a star chart program (xephem) to print sky charts for
particular times and locations. It is also convenient for double checking
sight reductions.

> c) Plotting
>
> How do you do your plotting?
> Computer Program(Name?)---: xfig (occasionally)
> Universal Plotting Sheets-: yes
> Maneuvering Board---------:
> Radar Plotting Sheets-----:
> Home Made(Describe)-------:
>
> d) Navigation Manuals
>
> Name your main reference manual-:
             APN (Bowditch, the 2 vol version)

> Name a manual/book that helped you the most-:
             APN (Bowditch)

> e) Do you use the Nautical Almanac?
> Commercial-: yes
> USNO-------: 

--
        Mike Wescott
        Wescott_Mike@XXX.XXX



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