Unmanned Supersonic Fighter (USF)

I would like to expand the Super Heavy Cargo Plane idea to an unmanned supersonic fighter. Like the cargo plane, the fighter would also rely on an LNG powered rocket engine for thrust. The engine will be a long tubular structure with a rocket engine on its front. The long tube will allow the unburned fuel to be combusted completely before being exhausted at the rear. This would also reduce the exhaust temperature (heat signature) of the fighter compared to engines with after burners.

The propellant (LNG & LOX) tanks would be placed on each side of the engine. Fuel rich burning of the engine would require almost 1 to 1 ratio for the fuel and the oxidizer. The payload bays of the fighter would be placed on each side of the propellant tanks. The payload bays would carry the ammunitions as well as the necessary sensors and the controllers to operate the plane.

The plane would utilize a ring wing for beneficial interference effects obtained with ring wings at supersonic speeds (https://arc.aiaa.org/doi/10.2514/3.43714). The wing would also help the launch tower to hold the fighter during VTOL. The plane would have no sharp edges for better supersonic performance. The side-by-side tubular design allows the plane to be modified to better suit a mission.