Airplane efficiency, safety and utilization

An airplane and a ground travel conveyance combined in one vehicle with a two section body with an aft body connected to a front body by means that allow the two bodies to displace in pitch angular rotation relative to one another through an arc that provides for aft body ground clearance at all times and provides for aft body alignment with the air flow during flight with means that provide angular displacement control, passive holding of angular displacement, passive release of angular displacement control of the aft body and passive built-in restraint of unwanted angular movement of the aft body for all operational conditions and with a tail located at the aft end of said aft body that projects downward with a ground support means located at the bottom of said tail that is capable of ground travel in any direction with said tail projecting below the airplane while in flight to provide means for positive yaw/roll coupling forces for coordinated turning and banking without aileron control assistance, and with a flight propulsive thrust means located at the aft end of the aft body, and with means of converting the flight surfaces to public road size limitations and with a means of transferring power from a power source to either said flight propulsive thrust means or to a ground traction propulsion means.