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Giant Wheel
Giant Wheel  
Circle
Circle  
QUESTION: Dear Deirdre

http://en.wikipedia.org/wiki/Giant_Wheel
http://en.wikipedia.org/wiki/Ferris_wheel
http://www.youtube.com/watch?v=UNaLW8jLrzM
http://www.youtube.com/watch?v=plKIn1Qg3Mk
http://www.giantwheels.info/

The Giant Wheel moves in one direction i.e. Anticlockwise direction. The End Users sitting in the Giant Wheel experiences
some feeling right at the top when coming down.

What will be the User experience if the Giant Wheel is moved in the
Other Direction i.e Clockwise Motion ?

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Actually, the direction of motion is determined only by the side of the wheel you are viewing from. If you look from one side, it is clock-wise, but from the other it is anti, or counter-clockwise.

Some wheels have more of a cabin, allowing riders to experience the wheel (see one here http://www.1000lonelyplaces.com/tourist-destination/vienna-austria-holiday-desti). In this sort of wheel, simply moving to the other side of the cabin would be the same as turning the wheel in the other direction.


---------- FOLLOW-UP ----------

Concentric Circles
Concentric Circles  
QUESTION: Dear Deirdre

Thank you.

http://en.wikipedia.org/wiki/Giant_Wheel
http://en.wikipedia.org/wiki/Ferris_wheel
http://www.youtube.com/watch?v=UNaLW8jLrzM
http://www.youtube.com/watch?v=plKIn1Qg3Mk
http://www.giantwheels.info/
http://en.wikipedia.org/wiki/Concentric

Concentric objects share the same center, axis or origin. Circles, tubes, cylindrical shafts, disks, and spheres may be concentric to one another.

Is it possible to construct or manufacture Concentric Giant Wheels ?

Example
-------

http://www.chancerides.com/rides/images/giant_wheel_specsheet.pdf

Pros : More Sitting Capacity for Riders on the Concentric Giant Wheel as riders can also sit on the chairs of the inner circles of the Concentric Giant Wheel.

Cons : Engineering Challenges for Construction, Additional Cost.

Can there can be complexities for constructing a Concentric Giant Wheel ?

http://www.chancerides.com/rides/images/giant_wheel_specsheet.pdf

POWER REQUIREMENTS*
Total .> 130 kW
Min./Max. voltage .> 208/230 - 460/480 volt,3 phase, 60 Hz

DRIVE*
Type .> variable speed electric
Motor Type .> 230/460 volt, 3 phase, 60 Hz
Number of motors.> 8
Horsepower rating .> 7.5

Since there will be Concentric circles, there will be more capacity for riders to ride on the Giant wheel, this will increase the Load on the Wheel. In this case do you feel that the Number of Drives (Motors) and Electrical Power requirements to drive the Giant Wheel may have to be increased ?.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
Concentric wheels are always possible, but the user experience for those in the center would certainly not be the same as for those in the outer wheel. Mechanically, it would be much more complex, and with more possible failure modes, which is a concern for carnival rides.

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Deirdre Hebert

Expertise

I can answer most questions regarding electronic components, what they are and how to use them.

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I worked for a number of years in the electronic component testing industry, designing and building automated test equipment for the electronic manufacturing industry.

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Numerous technical manuals for the equipment we built.

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UNH, CCAF and others

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General Electric, Motorola, Ford, Sensonor and others.

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