The Mitsubishi-designed Ki-67 Hiryu (translated to "flying dragon" and dubbed "Peggy" by the Allies) is oft-regarded as the best bomber fielded by Japan in the Second World War. The system was of a twin-engine design, armed with a defensive array of machine guns and cannon and could carry thousands of pounds of bombs or a torpedo over 1,700 miles. Due to the consistent Allied bombing of the Japanese mainland, production of the Ki-67 would never reach the hoped-for and needed standards to which the system would have made a difference in the Pacific Theater.