The Nakajima Ki-49 Donryu, also known as the Helen, was a Japanese four-engine heavy bomber designed by Nakajima Aircraft. It was the main heavy bomber of the Imperial Japanese Army Air Force during World War II, known for its range and payload.
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The Nakajima Ki-49 Donryu, also known as the Helen, was a Japanese four-engine heavy bomber designed by Nakajima Aircraft. It was the main heavy bomber of the Imperial Japanese Army Air Force during World War II, known for its range and payload.