World Communications Year — 1983. Future uses of space technology in aeronautical communications and navigation as well as current applications in search and rescue covered in this issue arc part of ICAO's interest in WCY 83, proclaimed by the United Nations under the auspices of the International Telecommunications Union. In a state letter, ICAO's Secretary General Yves Lambert noted that WCY 83 represents a unique opportunity for furthering the improvement of aeronautical telecommunications and invited civil aviation authorities to actively participatc in national efforts to develop communications infrastructures, including aeronautical telecommunications.