Paul Baumgarti was an Austrian who had worked on three helicopter designs during the war years before emigrating to Brazil. He experimented with a number of light helicopters in the 1950s and 1960s including the single-seat PB-60 unpowered ground-towed rotor kite, and the PB-64 which was an ultra-light single-seater with a minimal tubular fuselage structure. Baumgarti subsequently built his PB-63 under Brazilian Air Ministry funding. After the first model with coaxial rotors, it was given a traditional two-blade articulated rotor. This was a conventional helicopter with a single seat and semi-enclosed cabin, powered by an 85hp Continental C.85 engine. No production of any of these designs was undertaken. The last of a family of experimental helicopters designed in Brazil by the engineer Paul Baumgarti.
Engine: 1 x Continental C85-12, 85hp
Rotors: 2-blade main; 2-blade tail
Rotor diameter: 6.0m / 19 ft 8 in
Gross weight: 360kg / 794 lb
Empty weight: 238kg
Cruising speed: 60 m.p.h.
Ceiling: 2285m / 7,500 ft