sentences: "More than just an engine swap, the North Star had the Douglas DC-6 nose, landing gear and fuselage shortened by , DC-4 empennage, rear fuselage, flaps and wing tips, C-54 middle fuselage sections, wing centre- and outer-wing panels, cabin pressurisation, a standardised cockpit layout and a different electrical system.Canadair built 71 examples of what was officially called the Canadair Four under the designations