Joint Soviet/American Loran operations-the Bering Sea chain

On April 28, 1988, the US Coast Guard negotiated a proposal with the Soviet Union for the implementation of a mixed Loran-C/Chayka chain in the North Pacific. This agreement was signed at the May, 1988, summit meeting between the two countries´ leaders. The author discusses the similarities and differences of the US Loran-C and USSR Chayka systems, and presents the agreed-on design for a Bering Sea chain. This proposed chain would provide marine and aviation coverage over the 500-mile-wide coverage gap that exists in the North Pacific between the North Pacific chain, and the Northwest Pacific and Soviet Eastern USSR chains. It is concluded that implementation of a usable Loran-C/Chayka radionavigation chain is technically feasible