to Cuba. Fortunately, no situation ever arose in which a CF-101 pilot fired his weapons in anger. Between 1970 and 1972, Canada traded the 56 survivors of the original CF-101 fleet back to the USAF for 66 replacements under Operation Peace Wings. The "new" replacement aircraft were actually manufactured earlier than the original fleet, but the "new" airframes had a lower number of hours, plus the "new" Voodoos received updates which the original Canadian Voodoos had not received (including the addition of an IR tracking system). Bristol Aerospace of Winnipeg, Manitoba, performed modifications on the incoming fleet, which involved transferring some specifically Canadian items of equipment, including engines, from the "old" aircraft to the "new." Many of the "old" Canadian Voodoos were scrapped when they returned to the U.S., but 22 were converted to RF-101B photo-reconnaissance versions and flew with the Nevada Air National Guard until 1975. During its service, the CF-101 was a popular performer at airshows and other events in Canada and the United States; displays ranged from a single aircraft's appearance to an entire squadron. In 1967, a CF-101 flew (in company with a CF-104 and The Red Knight T-33) in the Golden Centennaires display team to mark the nation's Centennial. In 1984, each squadron painted a special "show" aircraft to commemorate the type's impending retirement. 409 Squadron produced "Hawk One Canada," 416 Squadron produced "Lynx One Canada," and 425 Squadron produced "Lark One Canada/Alouette Un Canada." Obsolescence and retirement Through the 1970s, the increasing obsolescence of the CF-101 and the CF-104 led to the New Fighter Aircraft program. Launched in 1977, the program sought a replacement for the CF-5, CF-104 Starfighter, and CF-101 Voodoo. The Grumman F-14 Tomcat, F-15 Eagle, F-16 Falcon, McDonnell Douglas F/A-18 Hornet, Panavia Tornado, Dassault Mirage F1, and the Mirage 2000 were evaluated as potential replacements. Cost considerations reduced the choice to the F-16 and F-18; the F-18 was ultimately selected in April 1980. The Voodoo OTU converted to CF-18 Hornets in June 1982; 409 and 425 Squadrons also stood down in June 1984. In 1985 416 Squadron moved from CFB Chatham, New Brunswick to CFB Cold Lake, Alberta and converted from the CF-101 Voodoo to the CF-18 Hornet tactical fighter. With the stand down, the last nuclear weapons in Canada were returned to the United States. Two Voodoos remained in service after the stand-down: the unique EF-101B electronic jamming aircraft (also