@GunnerV or MD10- Two questions for you.

1) I found a Navigation manual from the Air Force. http://www.e-publishing.af.mil/share...FPAM11-216.pdf
Are they any other publications available for civilians?
I enrolled with Starpath School of Navigation Title Page. They are doing an excellent job. Well worth the money. I just need more aircraft applications.

2) I am trying to find a bubble sextant. Any idea where I can purchase a new one?