Bo 102

The Bölkow Bo 102 Helitrainer was an unusual ground-based helicopter training aid that was developed and built by Bölkow of West Germany in the late-1950s. Designed to be mounted on a swivelling captive rig the Bo 102 allowed trainee pilots to practise procedures such as engine starting, rotor engagement and manipulation of the flight controls. Many of the Bo 102's components, including the single-bladed fibre-glass main rotor were used in the company's next design, the Bo 103.