Bölkow Bo 102

The Bölkow Bo 102 was a stationary helicopter coach of the West German manufacturer Bölkow developments KG. When Bo 102 for the first time a fiberglass rotor blade was used in a helicopter, which was intended for longer tool life.

History

According to the plans of the designer Ludwig Hofmann a helicopter trainer was developed, which aimed to reduce the cost of training for helicopter pilots to 7/8. After the completion of a 500 hour endurance test, the device was delivered in 1959 in five copies of the Bundeswehr. Other NATO countries constituted the coach.

Construction

The Bo 102 presented essentially a permanently fixed to a damping frame -seater helicopter Represents the frame could also be placed on a circular float ( rubber bead ), so that horizontal movements were possible.

The helicopter part had a single-leaf glass fiber reinforced fiberglass main rotor with a semi-rigid suspension and a diameter of 6.57 m. When driving a 29 kW ( 40 hp ) leis border three-cylinder two -stroke engine ILO L was used 3x375. The power was transmitted through a planetary epicyclic gear with freewheel on the rotor. The drive of the single sheet to the tail rotor torque balance was carried out via an intermediate gear.

The entire framework as well as the fuselage frame was designed as a welded steel tube construction. The pilot's seat had a large front window. It was a normal helicopter flight controls and a basic instrumentation used.

The two fuel container framed together 66 l; the total weight was 720 kg, including float, fuel, students and the outside of the cabin seated teacher.

Tentatively the free-flying training helicopters Bo 103 was derived from the trainer that uses the structure of the Bo 102.