is an amusement park
ride designed by HUSS Maschinenfabrik
in the 1970s, based on the company's Enterprise
and Skylab amusement rides.
Design and operation
The UFO consists of twelve, four-person gondolas, mounted in a circle around a central drive hub. This hub is in turn connected to a hydraulic arm. The ride is rotated to produce a centrifugal force
sufficient enough to stick the riders to the wall of the gondala furthest from the centre. Once this is achieved, the hydraulic arm is used to move the entire ride from the horizontal position to near-vertical. The time between the ride beginning to spin and the ride reaching near-vertical is approximately sixty seconds. The ride must be lowered back to the horizontal position before the rotation can cease.
There are no safety restraints on the UFO; the centrifugal force is strong enough to prevent riders from experiencing any major movement while the ride is not at horizontal, and in the event of a rotational or power failure, the size and spacing of the bars that make up the gondola 'cage' (along with enforced height and safety restrictions), prevents riders from falling out.
Nevertheless, minimum rider height requirement is usually inches or taller, as much as some extreme roller coasters.
There are believed to be less than 25 UFOs operating worldwide.