Yet another in a long line of bizarre Vertical Take-Off & Landing (VTOL) concepts was this plan for turning an F-104 Starfighter into a supersonic helicopter. Proposed by Ryan Aeronautical engineer Peter Girard (who had flown the actual Ryan X-13 Vertijet), the plan called for replacing the Starfighter's stubby wings with a triangular dorsal-mounted airfoil. The airfoil was to spin like a helico