Avia 51 (Czechoslovakia, 1933) Avia 57 (Czechoslovakia, 1935) Aviméta 132 (France, 1927) Avis BGV-1 (Austria, 1924)[2] Avro 618 Ten (UK, 1929) Avro 619 Five (UK, 1929) Avro 624 Six (UK, 1930) Bach 3-CT Air Yacht (US, 1927) Barcala-Cierva-Díaz BCD.3 (Spain, 1919)[3] Batson Air Yacht/Dragonfly (US, 1913)[4] Beardmore Inflexible (UK, 1928) Beechcraft Model 18 Tiara engine testbed (US, 1966) Bellanca 28-92 (US, 1937) Bernard 60 (France, 1929) Bernard 160 (France, 1932) Bernard SIMB AB 16 (France, 1927) Besson MB.36 (France, 1930) Blackburn Iris (UK, 1926) Blackburn Perth (UK. 1933) Blackburn Sydney (UK, 1930)