This classic manual covers the essential math and methods sailors use at sea, from arithmetic and decimals to time-arc conversions and sight reduction.

This edition compiles practical techniques, sample forms, and step-by-step procedures for determining positions, handling chronometers, and converting times and angles. It emphasizes clear, actionable instructions that mariners can apply during navigation, with examples and worked problems to reinforce learning.

Foundations in arithmetic, fractions, and decimals for precise calculations at sea
Time-to-arc conversions, altitude and azimuth work, and star identification techniques
Practical forms and procedures for lines of position, observations, and corrections
Guidance on using tables and methods common to professional navigators

Ideal for students, maritime cadets, and practicing mariners seeking a compact, hands-on navigation reference.

"About this title" may belong to another edition of this title.

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