This is NOT a copy of the Me 163 Komet,this is the IJN Ki-200 AKA : "Autumn Water" Background Info: The J8M1 was intended to be a licence-built copy of the Messerschmitt Me 163Komet. Difficulties in shipping to Japan meant that the aircraft eventually had to be reverse-engineered. A single prototype was tested before the end of World War II.The Japanese were quite aware of the results of the strategic bombing of Germany, and knew that the B-29 Superfortress would be bombing Japan and the resultant problems which would arise from trying to combat this. Japanese military had become aware of the Komet during a visit to the Bad Zwischenahn airfield of Erprobungskommando 16, the Luftwaffe evaluation squadron charged with service test of the revolutionary rocket-propelled interceptor. They negotiated the rights to licence-produce the aircraft and its Walter HWK 509A rocket engine. The engine license alone cost the Japanese 20 million Reichsmarks.[2]The agreement was for Germany to provide the following by spring 1944:Complete blueprints of the Me 163B Komet and the HWK 509A engine.One complete Komet; two sets of sub-assemblies and components.And Three complete HWK 509A engines.