Bolkow Bo-102 Heli-Trainer
Rolled out in 1959, the Helicopter Trainer was powered by a Hirth 40hp ILO piston engine and had a twenty-one foot counterbalanced fibreglass rotor blade.
Developed in land and water based versions, both of were semi-captive. This feature allowed the helicopter to rise to a height of 0.6m, turn around a vertical axis and dip at up to 6° but prevented it from flying outside these limits.
In all eighteen of these HeliTrainers were built operating throughout Europe, training military helicopter pilots. Although unable to fly, they were ideal for the teaching of hovering techniques and were replaced by dual trainer helicopters.
Engine: 1 x Hirth ILO, 40 hp / 30 kW
Main rotor diameter: 6.58m
Take-off weight without a platform: 325kg