Sidestick
I have a million projects in the annex and one of them is basic navigation.
( Did xCounty Orienteering from i was 10 years, and maps and stuff always fascinated me.)
With regards to the sextant in aviation , I shall consult with my old Navigator friend in Canada that used to work on the P3 (CF140)Aurora and before that Argus ( Britannia)
He did some interesting work up north in the late 70s and early 80s.
Now, Cod hunting at sea level ca 1/2 knot.
Regards
Cpt B