Answers are grounded in this paper and cite their sources.
We drew the contouis of constant probability density of loran fixes, and tried to draw up the "Loran Navigation Charts" of several parts in the loran service areas. By these charts, the navigator can select the best two pairs of the stations at once, because the sea areas are divided by several colours representing two pairs by which loran fix has the best accuracy.
No takes yet. Share an insight, caveat, or question.
Namikawa et al. (1956) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: