Sight reduction guide

[Omatako]

Guys,

When I started doing sight reductions to derive a position line I always had a little trouble getting all the steps in the right order and I could never find a comprehensive handy guide to ease the process.

Now that I have others on my boat who are interested in the process of celestial navigation, I decided to derive my own guide to help the learners to get started. I thought it would be nice to share it with those that have an interest.

This is not intended to be a lesson in celestial navigation and makes the assumption that the user understands the fundamentals and just needs a guide to get it all right. If you don't understand the steps described then you probably need a little tuition first.

• Page 1 is where the info for the sight reduction is gathered and the calcs done.
• Page 2 is a step by step process on how to use Page 1.
• Page 3 is how the plot is derived once the sight reduction has been achieved.
• Page 4 is a plotting sheet
• Page 5 is for a meridian passage (noon sight) and has imbedded instructions.

This is what the first page looks like.



Unfortunately the document is a Word file which I cannot attach in this forum. If you want to have a look at the whole thing, give me an e-mail address and I'll send you a copy.

I don't profess to be a celestial navigation guru and there may be errors so if any user sees something that is incorrect or could be improved, please share it with us.

Hope you find this useful

[Hartley18]

Thanks, Andre - it sounds like you've put quite a bit of work in to this..

Cameron

[sailingdog]

Andre-

Sent you a PM... will post the file so others can download it if you e-mail it to me.

SD

[Omatako]

Originally Posted by sailingdog

Sent you a PM... will post the file so others can download it if you e-mail it to me.

OK so if I knew how to to that I would've couldn't find the way to go about it.

It'll sure be easier than answering a zillion PM's

Thanks

[Valiente]

Andre, if you PM me, not only will I use it, I will post it back here as a link to a file-sharing site so that everyone can freely download it.

I forgot I have a "sailing-only" e-mail I've been meaning to try. Send it to

svalchemy@gmail.com

Thanks!

[Boasun]

I have a nice Sight Solver produced by Weems & Plath. Circa 1974
H.O. 229 reduction on one side and the other side has; Meridian Transit, Lat by Polaris, and an Azimuth Angle plotter.
Really is nice, in that it is a good reminder on all of the steps required in doing a sun line or a round of stars.

[sailingdog]

I'll have it posted as a PDF tonight...

[Valiente]

Here it is as the original .doc file:

https://www.yousendit.com/download/b...UnJCSWQzZUE9PQ

and here it is as a PDF:

https://www.yousendit.com/download/b...UnJ3NUozZUE9PQ

It's good for 100 downloads or 7 days.

[sailingdog]

Here is the original Word .doc file

LINK

Here's the PDF version.

LINK

No restrictions or time limits on the downloads from this site.

[Omatako]

Thanks guys

Hope the "old-fashioned" navigators find it useful. I know it works for us.