NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sight Reduction Form With No Duplication?
From: Mike Burkes
Date: 2008 Jun 26, 13:45 -0700
From: Mike Burkes
Date: 2008 Jun 26, 13:45 -0700
Hi Greg, yes I know what you mean about not having the specifics in Gray's and other forms. Complete as the forms may be you still pretty much have to be aware of the missing items e.g. the R,LL,UL have to be expanded into the 3 items for the Moon and those items can be obtained from the Naut. Almanac and/or cel nav text. The altitude correction forms are the limiting factors. And we haven't even discussed the Davis Artificial Horizon form where you have to start out with 2s, etc. In other words the user has to adapt the form to the specific body, artificial horizon, etc. Your form looks pretty good but I notice it is not columnar but the main thing it works for you. Mixter's forms in his Primer are also excellent and are not columnar but his and yours most definitely can be adapted to notebook paper maybe 2 per side? Yes Gray will definitely keep you out of trouble for a while ha! It is most enjoyable. Keep us posted on your results. Mike B > > --- Mike Burkes wrote: > >> Try this one from Leonard Gray's "100 Problems in Cel Nav". > > This is really a good sight reduction worksheet (and fairly close to > the one that I came up with for my own use), but unless I missed > something there's no line for the Moon H.P. correction - so it really > won't work as an "all-purpose" form (Latitude by Polaris and LAN are > their own animals, so they each get a separate worksheet just for > them). > > I also like the way his form has Assumed Latitude, LHA, and Dec shaded > to make them easy to find when entering the sight reduction tables (I > have them in bold on my own form). > > And since we're sharing our own personal worksheets, here's a copy of > the one that I came up with that (so far) seems to work the best for > me. > > -- > GregR > > > > --- Mike Burkes wrote: > >> >> Hi Greg, Try this one from Leonard Gray's "100 Problems in Cel Nav". >> The only duplication I see is Ho on Lines 7 and bottom unless I am >> missing something. HTH. >> Mike Burkes >> >> Has anyone ever seen (or come up with themselves) a sight reduction >> worksheet that doesn't require duplicating any data (i.e. filling in >> a value more than once)? >> >> >> >> I've tried to come up with something myself, but right now I really >> don't think it can be done - especially since calculations have to be >> done on both Hs (to get Ho) and Hc (as tabulated) to get final values >> for finding the length of the intercept. But if anyone's found >> something that works I'd definitely be interested in taking a look at >> it. >> >> >> >> -- >> >> GregR >> >> >> >> _________________________________________________________________ >> Need to know now? Get instant answers with Windows Live Messenger. >> > http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_Refresh_messenger_062008 >>> >> > > > _________________________________________________________________ Need to know now? Get instant answers with Windows Live Messenger. http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_Refresh_messenger_062008 --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---