NavList:

Frank,

you certainly are the expert on lunars, and I can accept that in your view my
proposal to use hav - Doniol for lunars a la Pearson is perhaps correct but outdated.
So we don't need to discuss it any further. If anyone is interested in it anyway

please let me know and I will describe it.

There seems some interesting astronomical and math stuff for thought

in your Vertical Circle Forcing, and it might merit the effort to repeat it here or

to point to prior descriptions. I, for one, would be grateful. I've never

heard about it.

Yes, Frank, computers exist. And your time machine could not only bring

modern methods to the Old but also hi-tech machines such as motors,

radar, or radio.

CelNav, however has the tingle of doing navigation the old way just as sailboats do.
So, when using hi - tech in CelNav one bypasses something that is desirable and
attractive - difficult to describe but probably felt by many doing CeNav.
One thing for sure is the challenge of paper calculations:
Can I do it? Can I do it even better than J.Cook using only those tools he had?

Specifically, I am curious if I could I do Vertical Circle Forcing by hand?

Lastly, as an EE I could not disagree less with your assertion of calculators

being reliable as paper. No hi - tech device I've ever come across would pass that

criterion - none. Would J. Cook have taken along a calculator? Yes, most likely,
but also plenty of his pens, ink, paper and tables I assume. He, as many
modern sailors, would not completely have trusted them, and wisely so.

Regards

H