The McDonnell Douglas F-4 Phantom II is a two-seat, supersonic long-range all-weather fighter-bomber. The aircraft was designed as a USN Fleet defense aircraft and entered service in 1961. JG 71 "Richthofen" converted from the F-104G to the F-4F beginning March 1974 and completed by 1975. Various paint schemes had been used by the Luftwaffe but in 1982 and onward the standard scheme was the “Norm 81”. In the 1970s and 80s NATO countries adopted low-level flying to avoid radar detection. With Europe being heavily populated it made it almost impossible to fulfill this role so to accomplish this, Germany and others were based at Goose Bay Labrador that provided 294,000 km of airspace with a population of less than 30,000.