Gravity powered devices > Gravity powered devices

How much weight is needed to create a certain amount of power?

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mapsrg:
Using many smaller weights on a larger wheel would be advisable....see imbalance wheel in "half baked ideas"........the illustration i posted shows 12 smaller wheel mounted weights but it can be 10 times that number.Potential Energy from a certain amount of weight in may be less due to losses so the weight figure may need to be slightly more to make these up.....

hansvonlieven:
G'day all,

Is that the image you are talking about??

Hans von Lieven

(http://www.overunity.com/index.php?action=dlattach;topic=2707.0;attach=12118;image)

mapsrg:
A 25Kw unit on a 10m diameter wheel will require 510.2Kg.......plus extra weight to overcome losses.

mapsrg:
Yes thats the image......thanks for that.

mapsrg:
The rpm problem........if in the calculation gravity is in metres per second then a quarter turn from the 3oclock position must take 1 second........so a full rotation will take 4 seconds??Or is it gravity will cause the weight to rotate around the wheel 9.8 metres of circumference in 1 second?................... ???

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