Proper Procedures for Use and Adjustment of the Survey Sextant.
COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
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The Survey Sextant, a sextant designed for measuring angles between terrestrial objects, has a special prism which allows the operator to measure angles beyond the normal range of the sextants arc. Step by step procedures, including necessary graphics, are presented to guide the reader through the process of determining the alignment and making the adjustments to this special purpose prism. An alternate sighting guide for the sextant is also offered. Author
- Navigation and Guidance