Next message: Courtney Thomas: "Re: suggestion for a satisfactory celnav narrative"
John,
THANK YOU for your constructive reply and hope that some with the needed
abilities, which I've already admitted I lack, will come forth to
collaborate with all.
Cordially,
Courtney
On Fri, 2005-06-03 at 08:56, John Kabel wrote:
> As another cynic, but still full of energy, I suggested the Wikipedia
> approach in an e-mail a few days ago. That is one way I am prepared to
> contribute. The other way would be an effort supported on a dedicated
> server that this group can work with. I am not competent to set up a multi-
> authored document on a server, my own or anyone else's. If someone were to
> set it up, and identify to the group the ground rules and the access
> mechanism, I would again contribute what I could. I think the Wiki type of
> software could be used for that. Does the foregoing reduce me to half a
> cycnic??
>
> John Kabel, SN
> London, Ontario
>
> > Andrew Corl wrote-
> >
> > >For Courtney, I am raising my hand to help with this. Don't know what I
> > >can do but here is a list of techniques I feel should be in the manual:
> > >Dead Reckoning Latitude by Noon Sun Longitude using a shortwave radio and
> > >the noon sun Sextant operation and how to determine the elevation above the
> > >horizon of the sun, moon, star, and planet Sight reduction using H.O. 249 -
> > >method I am presently learning Sight reduction doing all the math (the
> > >"apex of celestial navigation" according to Frank)
> >
> > As a world-weary old cynic, my opinion is that any offer, saying "this is
> > how I think it should be done, and I'm prepared to contribute" is worth at
> > least 10 proposals of "this is how I think it should be done, but by someone
> > else, not by me". So Andrew's suggestions are indeed useful.
> >
> > No doubt, he expected a bit of nitpicking about his choice of topics, and I
> > am happy to provide it. It relates to his suggested topic- "Longitude using
> > a shortwave radio and the noon sun"
> >
> > Although proposals for timing the moment of noon, by observing the Sun
> > around noon, reappear on this list at regrettably regular intervals, the
> > fact remains that noon is the worst possible moment for doing that job.
> > Although it's possible to make a crude assessment of the moment-of-noon by
> > making an extended set of observations, before noon and after, the only way
> > to get a PRECISE value of time-by-the-Sun (and hence longitude) is to do so
> > at a time WELL AWAY from noon, so that the Sun is rising and falling at a
> > measurable rate. If Andrew were to rephrase his suggestion to read instead-
> > "Longitude using a shortwave radio and a time-sight of the Sun", then I, for
> > one, would be happy.
> >
> > George.
> >
> > ================================================================
> > contact George Huxtable by email at , by phone at
> > 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy Lane,
> > Southmoor, Abingdon, Oxon OX13 5HX, UK.
> > ================================================================
> >
> >
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