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British heavy four-engine bomber takes off in an old photo
Four-engine bomber Boing B-17 alias - flying fortress
Avro Lancaster four - engine heavy bomber
German military four - engine fighter
Military transport four-engine turboprop aircraft
Four-engine heavy bomber on the runway at night
Heavy four-engine bomber ""Lancaster" " in flight
Heavy four - engine bomber 1943
A heavy, four-engine bomber is flying in the sky
A heavy four-engine bomber is flying in the sky
Heavy four - engine Avro Lancaster bomber
Heavy four - engine Lancaster bomber