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Gary,

     You have succeeded in getting me interested in slide rules. I
have never owned or used one but after some internet research I see
that they have been to the moon and back. Now I will have to get one!
So far I am leaning toward the purchase of a Pickett N3-ES which is of
aluminum construction. The slide rule could very well be the pinnacle
of low tech achievement. Right there with the mechanical chronometer.

Greg

On May 17, 6:21�pm, glap...@PACBELL.NET wrote:
> I like the K&E 4080 because the trig scales are marked in degrees and
> minutes so use the same units as other methods of celnav. The 4081 is
> almost identical except the scales are marked in degrees and tenths of
> degrees. Take your pick.
> PS. they are things of beauty.
>
> gl
>
> On May 16, 10:16�am, corallina  wrote:
>
> > Awhile back some pdf files were posted containing a bygrave
> > type computer. �I believe it was the original poster did a
> > comparison using his keuffel and esser 4080 slide rule against
> > the bygrave and perhaps a calculator.
>
> > Now I am interested in trying a slide rule. �It would seem that
> > ebay has the most to offer and I have checked prices for
> > the one mentioned above. � At this time I am only interested in
> > using the slide rule for sight reduction.
>
> > Being rather ignorant of slide rules I would appreciate if there are
> > other models that the list would recommend giving me a few
> > more options before purchase.
>
> > Thank you.
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