The picture depicting 710 is an Argus mark 1 of the first generation, 710 is actually the first Argus and prototype built by Canadair in Montreal and is equipt , like all 13 mark 1, with the american APS-20 search radar wich has the big antenna radome, all others Argus (22)where mark 2 with british ASV-21 search radar with the smaller radome. The Wright engines where fitted for low specific fuel consumption (not for cost saving), on the 31 may 1974, 711 a 407 Squadron Argus mark 1 from Comox flew 31.1 hours straight with no external or added fuel tank

I agree it is a CL28 Argus. It is the later model with the larger radome that actaully gave a better performance than the earlier model with a smaller radome.
However I do not agree that piston engines gave the aircraft a better performance. The Proteus turbo prop of the original Brittania would have given a far greater endurance and range. I think more to the point the Cyclone was more of a low cost option.

The photo at the top of the page is definately an Argus. I flew over 2000 hours in the Argus as a Radio Officer.
Piston engins were specified as they gave a longer range than turbo props and gave us a longer loiter time mid-Atlantic. The Argus had the longest range of any aircraft until Rutan's arond the world flight.

The picture you have is not of an argus!

Photos inverted. This is the CL-44, and the one in CL-44 page is a CL-28...

Why Canadair replaced turboprops with piston engines? I think turboprop is the best way to push a patrol aircraft longer. It's a nonsense...

I am a former master navigator on the "Argus"; flew with RCAF 404 MP Squadron 1963-66.
I would very much like to acquire a dest model of the Canadair Argus.
Canyou inform me how to go about this?