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Troika (ride)
The Troika is an amusement park ride designed and manufactured by HUSS Park Attractions in the mid-1970s. The name Troika means "group of three" in Russian, a reference to its three armed design.
==Design and operation==
A Troika consists of three arms radiating from a central column. At the end of each arm is a wheel-like assembly (star) holding seven gondolas, each of which seats 2 people side by side. The combination of the arm and star is a sweep.
When the ride is activated, the central column rotates clockwise, while the Star at the end of each arm rotates counterclockwise. Hydraulic cylinders then raise the arms to an angle of 40°. The gondolas do have some capacity to rock from side to side, but this is minimal. At the end of the ride cycle, the arms are lowered, and the rotation stopped. Because it is a relatively mild thrill ride, it is a good ride for younger children or beginning riders who aren't up to riding more extreme attractions, like Huss's own Enterprise or Top Spin.
The main safety restraint is a buzz bar system, which locks into one of five positions. Huss recommends that riders be at least 42 inches tall with an adult or over 50 inches tall to ride alone.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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