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Subject: Re: Navigation Survey
From: Dan Allen (danallen@XXX.XXX)
Date: Fri May 25 2001 - 17:18:49 EDT
Navigation-L Survey
a) Dead Reckoning
Rhumb Line & Great Circle via calculator & computer programs
b) Sight Reduction
Which is your primary Sight reduction method?
Computer Program(Name?)--------: s2k, a program of my own creation
written in Awk & Perl
Calculator(Name?)--------------: s2k, ported to the HP-48 series of
calculators
c) Plotting
How do you do your plotting?
Computer Program(Name?)---: fix, a program of my own creation written
in C
d) Navigation Manuals
Name your main reference manual-:
many editions of <<American Practical Navigator>> by Nathaniel
Bowditch;
my favorite is the 1966 edition
also George Mixter's <<Primer of Navigation>> is very good.
Name a manual/book that helped you the most-:
William F. Buckley's video tape on celestial navigation and his book
<<Airborne>>
got me started many years ago; W. M. Smart's "Textbook on Spherical
Astronomy" along with
Lancelot Hogben's "Mathematics for the Million" really got the basic
principles lodged in
my head; and writing my own software for an almanac and all of the
corrections finally
made it all come together.
e) Do you use the Nautical Almanac?
Commercial-: as a check on my own software which is designed to
replace the Nautical Almanac
USNO-------:
f) What instruments do you use?
Several sextants (C. Plath, Tamaya, Astra)
HP-48 calculators (for calculations, almanac)
Seiko perpetual calendar watch (highly accurate quartz crystal for
time)
Pentel 0.3 mm mechanical pencil (to write data)
Clairefontaine 9.5 cm x 14 cm notebook (logbook for sights)
Dan Hogan WA6PBY
Catalina 27 "GACHA"
dhhogan@XXX.XXX
Navigation-L List Owner
http://www.wa6pby.com
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