Ac-1 for missils ac2 for bombs ac-6 for wingtip tanks. The Canadair CF-104 Starfighter (CF-111, CL-90) was a modified version of the Lockheed F-104 Starfighter supersonic fighter aircraft built in Canada by Canadair under licence. It served with the Royal Canadian Air Force (RCAF) and later the Canadian Armed Forces (CAF) until it was replaced by the McDonnell Douglas CF-18 Hornet.In the late 1950s, Canada redefined its role in the North Atlantic Treaty Organization (NATO) with a commitment to a nuclear strike mission.[2][3] At the same time, the RCAF began to consider a replacement for the Canadair F-86 Sabre series that had been utilized as a NATO day fighter.[4] An international fighter competition involved current types in service as well as development, including the Blackburn Buccaneer, Dassault Mirage IIIC, Fiat G.91, Grumman Super Tiger, Lockheed F-104G Starfighter, Northrop N-156 and the Republic F-105 Thunderchief.[4] Although the RCAF had preferred the F-105 Thunderchief equipped with an Avro Canada Orenda Iroquois engine, eventually the choice for a strike-reconnaissance aircraft revolved around cost as well as capability.[5] [N 1]A Canadian government requirement for a license manufacture also favoured the Lockheed proposal due to a collaboration with Canadair based in Montreal. On 14 August 1959, Canadair was selected to manufacture 200 aircraft for the RCAF under license from Lockheed. In addition, Canadair was contracted to manufacture wingsets, tail assemblies and rear fuselage sections for 66 Lockheed-built F-104Gs destined for the West German Luftwaffe.[6][N 2]Canadair's internal designation was CL-90 while the RCAF's version was initially designated CF-111, then changed to CF-104. Although basically similar to the F-104G, the CF-104 was optimized for the nuclear strike/reconnaissance role, fitted with R-24A NASARR equipment dedicated to the air-to-ground mode only as well as having provision for a ventral reconnaissance pod equipped with four Vin