A useful little book for those sailing in waters where there is still Loran coverage. Loran is a ground-based long-distance electronic navaid, of which the earliest form was developed in WW2, and which was greatly developed and extended...
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..in both Europe and USA in the 1970's. Despite the emergence of GPS, its remains a valuable alternative position-fixing system. B/w photos and line drawings. PB. 94pp.
