Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Blohm & Voss BV 238 was a German flying boat designed in World War II. It was the heaviest aircraft ever flown when it first flew in 1944, and physically was the largest aircraft produced by any of the Axis powers in World War II. The BV 238 V1 prototype, bearing the four-letter Stammkennzeichen (factory radio code) of RO + EZ, first flew on 11 March 1944 after a first jump on 10 March 1944. Six 1,287 kW (1,750 hp) Daimler-Benz DB 603 inverted V12 piston engines were used in total, arranged in three forward-facing engine nacelles on each wing, with each engine's coolant radiator in a chin cowl directly under the engine.