NavList:

Well, ideally the tables would not be necessary---the slide rule should be the complete solution.  I guess the user can do a power-series approximation below 5.8 degrees (using the slide rule for the multiplies of course)---probably only one extra term needed.  Perhaps an almanac can be put on the handle area, which is currently wasted space.
 

Sure---if Wayne has an interest he should definitely give it a try.  I've modified my code towards the same end (PDFs attached), but I'm not sure the scale increments and breakpoints are really the best choices, and the style is again "modern" rather than "Otis-King-like".  There's plenty of room for style variations.

The scales are pretty crowded, and I'm not convinced that the red scales with complementary angles are a net plus on this denser layout---while it relieves the user of jotting down complements, it requires the scale to be kind of reverse-engineered at every reading until one gets used to it.  Putting a full series of red numbers over black would be less confusing, but the text would have to shrink by a factor of 2, which would be unreadable without magnification.

Cheers,
Peter

ps: I can make the source code available, but it contains some inelegant hacks for things like the red coloring.  It really should be rewritten from scratch.