These tables were designed for air navigation where weight and space are at a premium, however, they are very popular with sailors too due to the fact that Vol.

The cornerstone for all celestial navigation, listing the celestial bodies used for navigation, a sight reduction table, and other information valuable to the o

Many books on celestial navigation take shortcuts in explaining concepts; incorrect diagrams and discussion are often used for the sake of moving the student al

The cornerstone for all celestial navigation, listing the celestial bodies used for navigation, a sight reduction table, and other information valuable to the o

While Americans are generally aware of China's ambitions as a global economic and military superpower, few understand just how deeply and assertively that count