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Subject: Re: from a watcher
WSMurdoch@XXX.XXX
Date: Tue Oct 22 2002 - 19:50:42 EDT
In a message dated 10/22/02 9:52:44 AM Eastern Daylight Time,
wescott_mike@XXX.XXX writes:
> I look at these tables as part of a convenient "lifeboat kit". I.e. what's
> the minimal kit you'd need to do lifeboat navigation? They do require a lot
> of steps but the tables are very compact. That's the trade off I guess.
>
> The form I developed fits four calculations to a page. I think it needs a
> little more in the way of directions to jog the navigator's memory.
> Consider
> this a beta version.
>
When the Nautical Almanac tables were new, (I think 1989 was the first year.)
I put a form together that Cruising World published in their November 1990
issue. The USPS later adopted a form, SR 89, for use with the Nautical
Almanac Sight Reduction Tables. I am surprised that the NAO has not included
a suggested form with their tables either in the NA or in Bowditch. I think
it makes it much easier to use the tables.
Bill Murdoch
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