The Canadair CL28 (CP107) was a Canadian adaptation of the Bristol Britannia with four Wright R-3350 engines for long range anti-submarine patrol missions. A total of 33 were built and they flew for two decades with 5 squadrons (Nos. 404, 405, 407, 415, 449) from bases in Greenwood, NS, Summerside, PEI and Comox, BC. Argus 20717 (later 10717, but now painted as 107717) was accepted in June 1958 and spent most of its career based at Greenwood until retired in March 1980. Five Argus are displayed at museums (Ottawa, Trenton, Summerside, Greenwood & Comox) and a sixth stored by WCAM at Gimli, MB.

Taken on strength December 3, 1957 as 20713, this Argus was re-serialed in May 1970 during the unification of the Canadian military. Pictured with 407 maritime patrol squadron, the aircraft was struck off strength October 23, 1980 and later scrapped.

Canadair built 33 of these aircraft for the RCAF. An adaptation of the Bristol Britannia, it used Wright R-3350 engines. It was retired from the anti-submarine role by 1981.

Argus 1 of 407 Squadron performing at RAAF Laverton at the 50th Anniversary air display.