Given the codename "Grace" by the Allies, the Aichi B7A Ryusei was a large and powerful single engine, two-seat carrier-borne torpedo-dive bomber. It was produced by Aichi Kokuki KK for the Imperial Japanese Navy Air Service during the Second World War. The B7A first flew as a prototype in May 1942, but problems with the experimental NK9C Homare engine and airframe issues delayed the type and it didn’t enter into production until two years later in May 1944. Despite the plane's weight and size, it displayed fighter-like handling and performance, it even outperformed the A6M Zero which was in service at the time. Not only was it was a fast, agile and highly maneuverable machine it could also carry a single 800 kg bomb, two 250 kg bombs or six 60 kg bombs at once.