Captive helicopter

A tethered helicopter is a helicopter which is not freely fly, but is connected during use via a tether to the ground. Bondage helicopter can be used for the same purpose as captive balloons. The advantage to captive balloons is that they do not need a filling gas and that they can be controlled and are less susceptible to wind.

Disadvantages its energy consumption and noise are considered. Riveting helicopter may be operated by an electric motor, wherein the power supply is effected through a cable in the interior of the tether.

History

In the late 1930s the company Telefunken made ​​a transmission experiment with an antenna, which should be supported by a tethered helicopter to an altitude of 1000 meters, with the pastern helicopter was powered by an AC motor. However, due to electrostatic charges talked to some fuses, as the pastern helicopter a height of 750 meters reached, so that it landed hard.

Swell

• Helicopter