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The following document in 3 very large Adobe Acrobat PDF files is
available online:

     Air Navigation
     15 March 1983
     Reprinted 1 Dec 1989 with Changes 1 and 2 included
     Departments of the [US] Air Force and the Navy
     AFM 51-40

Chapters include Maps, Charts, Mission Planning, Dead Reckoning, Lines
of Position, Radio, Radar, Time, Celestial Concepts, Computing Altitude
and True Azimuth, Celestial Precomputation, Plotting and Interpreting
Celestial LOPs, Special Celestial Techniques, Star Identification,
Sextants and Errors of Observation, Grid, Overwater Aids (PLOP and
LORAN), Advanced Navigation Systems, Low Level Navigation, Aerial
Delivery and Air Refueling, Weather Station Services, Formulas and
Conversions.

The download site is at:

     http://www.wpafb.af.mil/cpdc/pubs/AF/manual.html

The files are 21.2 MB, 20.1 MB, and 22.3 MB in size!

If you do not have a Cable Modem or DSL or better connection, they may
not be worth downloading.  I have not inspected them in too much detail
yet.

They are so large because they are scanned from the originals, not
generated via Adobe Acrobat, so some of the pages are fuzzy.

Nevertheless, it may be another free source of interesting information
about celestial navigation.

There are also many other US Air Force publications available at:

     http://www.wpafb.af.mil/cpdc/pubs/AF/index.html

including US survival manuals (4 large scanned PDFs) at:

     http://www.wpafb.af.mil/cpdc/pubs/AF/00064series.html

Dan

   

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