AVRO Lancaster Avro Lancaster Portfolio Bellanca C.F. : The Emergence of the Cabin Monoplane in the United States Boeing aircraft since 1916 Boeing company : De geschiedenis van de Boeing-fabrieken B-17 flying fortress B-17 flying fortress Boeing B-17B- H Flying Fortress B-17 flying fortress in color B-17 in action : aircraft no. twelve Bristol aircraft since 1910 Curtiss Aircraft 1907-1947