JANUARY 22--The Navy's most advanced antisubmarine warfare aircraft, the land-based P-3C Orion, established a world record in the heavyweight turboprop class for long distance flight. The production model aircraft, piloted by Commander Donald H. Lilienthal with a crew of eight, set the record with a flight of 6,857 statute miles over the official great circle route from  NAS Atsugi, Japan to NAS Patuxent River, Maryland. The flight, which topped the Soviet Union's IL-18 turboprop record of 4,761 miles set in 1967, lasted 15 hours, 21minutes. In order to avoid Russia's Kamchatka Peninsula, the Lilienthal flight actually covered 7,010 miles.