NavList:

You might want to skip Weem's New Line of Position Book. I bought it because I liked the idea of  having all the data for one latitude on one page, much like H.O. 214 and H.O. 249, since his first book is arranged like H.O. 229 by LHA. But when it came in the mail I didn't like it since it is so much bigger. He also introduces a new column of "Z" which can be used to calculate an approximate azimuth. I don't know why he included this column since this method is no easier than the method he already showed for computing azimuth using table "B" alone and it only produces an approximate azimuth so is not as accurate as the other method. I am attaching two photos of the two sets of tables. I have indicated the entries for latitude 20 degrees, LHA 11 degrees, just above the ruler.

See my comments about this at:

http://www.navlist.net/m2.aspx?i=106760&y=200812

gl

Greg Rudzinski wrote:

Gary,

I enjoyed your post from last year comparing all the short methods. I
am slowly collecting all of these tables and I see now that there are
two different editions of Weems tables that I will have to keep an eye
out for.

Greg

On Dec 5, 9:33 pm, Gary LaPook <glap...@pacbell.net> wrote:
  

You should also look at Dreisonstok and Weems which provide shorter
solutions than Ageton. Check out this topic that compares all three.

http://groups.google.com/group/navlist/browse_thread/thread/529edc059...

gl

Greg Rudzinski wrote:
    

The Ageton method is worth a try as a
unique alteritive to the many sight reduction methods out
there. For those not familiar with the Ageton method expect
to spend a day practicing to get comfortable with Bowditch
table #35 (or H.O. 211) and the suggested sequence of
solution involving A, B, and K values. At first the whole
reduction process will seem strange but the method will grow
on you each time a sight reduction is completed. It takes
about ten minutes to obtain an Hc and Azimuth. The compact
size of the tables and being able to use any assumed
position are the advantages over Pub 249 and 229. The whole
reduction can be done on one side of an index card as seen
attached.
      

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