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A heavy four-engine bomber is flying in the sky
Heavy four - engine Avro Lancaster bomber
Heavy four - engine Lancaster bomber
American heavy four - engine bomber
Drawing of a British heavy four-engine bomber
Drawing of the German B-17 heavy fighter-bomber
Heavy four-engine bomber ""Lancaster" " in flight
Heavy four - engine bomber 1943
Heavy strategic bomber B fifty two
Four-engine bomber Boing B-17 alias - flying fortress
Flight of a strategic bomber over the desert
Soviet heavy twin-engine bomber TU-16