Owner manual

Includes everything you need: sextant
use and corrections, starfinder for 18
stars, data entry form and step-by-step
sight reduction and plotting proce-
dures.
#132
3465 Diablo Ave., Hayward, CA 94545 U.S.A.
Phone [phone] • Fax [phone]
[e-mail] www.davisnet.com
REPLACEMENT PARTS
Contact your local dealer or Davis
Instruments to order. Specify that your
sextant is the #011 Mark 3.
R011A Index Shade Assembly
R011B 4 Springs, 2 Screws, 3 Nuts
R011C Index & Horizon Mirrors
w. Springs, Screws, Nuts
R011X Factory overhaul
($10.00 estimated charge)
CELESTIAL NAVIGATION
AT A GLANCE
Celestial Navigation
Quick Reference Card
This full-color, weatherproof plastic
card presents a simplified yet complete
celestial navigation system. Makes it
easy, proving that lengthy instruction is
not necessary to master the subject.
OTHER DAVIS SEXTANTS
In addition to the Mark 3, Davis offers
two models of master marine sextants.
The Mark 15 offers professional
features—including micrometer drum,
traditional styling, and greater accuracy
than the Mark 3. Allows readings up to
2/10 minute of arc. 3 x 27 mm star
telescope. Precision machined, slow
travel gear and worm mechanism.
#026
The Mark 25 has all the features of the
Mark 15 plus LED lighting and the
patented Beam Converger horizon mir-
ror, which replaces the conventional
half-silvered mirror. The Beam
Converger combines the horizon and
astrobody images into a single full-field
view for easy, reliable sights under the
most difficult conditions. Constructed
with stronger and more stable materi-
als to make this the most accurate of
the Davis sextants.
#025
File page 20 (back cover)