The I.P.D BF-1 Beija-Flôr (English: Humming Bird) was a two-seat light helicopter designed by Henrich Focke.
[1] The BF-1 was built by the aircraft department of the Brazilian Research and Development Institute Instituto de Pesquisa e Desenvolvimento (IPD) (formerly the CTA - Centro Técnico Aeroespacial), using a design of Henrich Focke.
[1] It was a conventional three-bladed single rotor helicopter, powered by a 225 hp (168 kW) Continental E225 piston engine, mounted in the nose.
[1] The tail unit included a small vertical dorsal fin with a horizontal stabilizer on the starboard side.
Two inter-meshing tail rotors, each inclined at 45°, provided pitch and yaw control.