 However, the basic CF-100 continued to improve through this period, and the advantages of the new design were greatly eroded.It was considered an interim aircraft between the CF-100 and the more advanced C-104 project, and as such development did not progress beyond creation of a full-size wooden mock-up and separate cockpit.By 1950, several design proposals for a supersonic interceptor were explored which included versions with swept wings, a tail-less delta wing (similar to the Dassault Mirage IV), side-body engine intakes, in-nose engine intakes (similar to the Mig-21), turbine engines and rocket engines, and combinations of several.